Applied Organometallic Chemistry

Cover image for Vol. 30 Issue 8

Early View (Online Version of Record published before inclusion in an issue)

Editor-in-Chief Cornelis J. Elsevier

Impact Factor: 2.452

ISI Journal Citation Reports © Ranking: 2015: 14/46 (Chemistry Inorganic & Nuclear); 19/71 (Chemistry Applied)

Online ISSN: 1099-0739

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  1. 1 - 54
  1. Full papers

    1. Cobalt-based metal coordination polymers with 4,4′-bipyridinyl groups: highly efficient catalysis for one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions

      Jin-Hua Wang, Gui-Mei Tang, Shi-Chen Yan, Yong-Tao Wang, Shi-Jie Zhan, E Zhang, Yu Sun, Yuan Jiang and Yue-Zhi Cui

      Version of Record online: 25 JUL 2016 | DOI: 10.1002/aoc.3535

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      A set of cobalt-based metal coordination polymers containing phenylsulfonate and 4,4-bipyridine ligands were obtained under hydrothermal conditions. They show high catalytic performance for the green synthesis of a variety of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions through Biginelli reactions.

    2. Bis(4-pyridylamino)triazine-stabilized magnetite nanoparticles: preparation, characterization and application as a retrievable catalyst for the green synthesis of 4H-pyran, 4H-thiopyran and 1,4-dihydropyridine derivatives

      M. A. Bodaghifard, A. Mobinikhaledi and S. Asadbegi

      Version of Record online: 25 JUL 2016 | DOI: 10.1002/aoc.3557

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      A facile, versatile, multicomponent, one-pot and green methodology to access 4H-pyrans, 4H-thiopyrans and 1,4-dihydropyridines in the presence of bis(4-pyridylamino)triazine-stabilized silica-coated magnetite nanoparticles (MNPs-BPAT) as a new, efficient, magnetically separable and reusable heterogeneous catalyst has been developed.

    3. Structurally rigid bis(pyrazolyl)pyridine Zn(II) and Cu(II) complexes: Structures and kinetic studies in ring-opening polymerization of ε-caprolactone

      Mnqobi Zikode, Stephen O. Ojwach and Matthew P. Akerman

      Version of Record online: 25 JUL 2016 | DOI: 10.1002/aoc.3556

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      Bis(pyrazolyl)pyridine zinc(II) complexes 1–4 form active initiators in the ROP of ε-CL to produce moderate molecular weight PCL via coordination insertion mechanism.

    4. Synthesis, characterization, photoluminescence and electrochemical properties of Pt(II) and Ag(I) complexes of tetradentate aminomethylphosphine ligands and antiproliferative activities on HT-29 human colon cancer

      Serhan Uruş, Mahmut İncesu, Seda Köşker, Akif Hakan Kurt and Gökhan Ceyhan

      Version of Record online: 25 JUL 2016 | DOI: 10.1002/aoc.3550

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      Three novel tetradentate aminomethylphosphine ligands and their Pt(II) and Ag(I) complexes have been synthesized under a nitrogen atmosphere using the Schlenk technique. Their photoluminescence and electrochemical properties were investigated and their antiproliferative activities on HT-29 human colon cancer cells.

    5. Preparation and characterization of novel organic chelating resin and its application in recovery of Zn(II) from aqueous solutions

      Qunxiong Zheng, Zhuoli Li, Xixi Miao, Jionghui Li, Yifeng Huang, Haina Xia and Chunhua Xiong

      Version of Record online: 24 JUL 2016 | DOI: 10.1002/aoc.3546

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      An organic polymeric resin PS-PABA was synthetised via anchoring p-aminobenzoic acid (PABA) onto PS-Cl beads and used for Zn(II) removal from aqueous solutions. The pictures show the PS-PABA resin and PS-PABA-Zn resin. It can be found that the smooth surface of PS-PABA resin turned thicker and coarser just like the granular flake material. It's obvious that the resin adsorbed the compound of zinc.

    6. Synthesis and X-ray structural characterization of a bidendate phosphine (dppe) palladium(II) complex and its application in Stille and Suzuki cross-coupling reactions

      Ali Naghipour, Arash Ghorbani-Choghamarani, Heshmatollah Babaee and Behrouz Notash

      Version of Record online: 24 JUL 2016 | DOI: 10.1002/aoc.3533

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      The bidentate phosphine complex [1,2-bis(diphenylphosphino)ethane]palladium(II) bromide, [PdBr2(dppe)], synthesized and it's crystal structure reported. It's catalytic activity in both Stille and Suzuki cross-coupling reactions of various aryl halides with triphenyltin chloride and/or phenylboronic acid, reported.

    7. Preparation of new dioxygen-active triphenylantimony(V) catecholate-containing porous polymer

      Sergey A. Chesnokov, Nina A. Lenshina, Maxim V. Arsenyev, Roman S. Kovylin, Maxim A. Baten'kin, Andrey I. Poddel'sky and Gleb A. Abakumov

      Version of Record online: 21 JUL 2016 | DOI: 10.1002/aoc.3553

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      New monolith porous polymers with a pore surface functionalized by hydroxyethyl groups were prepared, and the pore surface further functionalized by o-benzoquinone and triphenylantimony(V) catecholate groups. The resulting porous polymer containing antimony(V) catecholate moieties on the pore surface is able to bind molecular oxygen in a reversible manner. The sorption rate of atmospheric oxygen by antimony complexes grafted to the polymer surface is comparable with that of dioxygen binding by antimony catecholate in toluene solution.

    8. Terephthalic acid derived ligand-stabilized palladium nanocomposite catalyst for Heck coupling reaction: without surface-modified heterogeneous catalyst

      Jithendra kumara K. S., Krishnamurthy G., Kumara swamy B. E., Shashi kumar N. D., Satish Naik, Krishna B. S. and Nagaraj Naik

      Version of Record online: 20 JUL 2016 | DOI: 10.1002/aoc.3549

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      We combined heterogeneity and stabilizing power of a terephthalic acid-derived polydentate ligand in one process. This polydentate ligand is successfully used as a capping agent to stabilize palladium atoms at a very good nano-size ranging from 5 to 7 nm. This palladium nanocomposite is used as a heterogeneous catalyst for Mizoroki–Heck reaction giving high yield and purity, with good catalyst recovery without loss of activity.

    9. Triphenylphosphinopalladium(II) complexes with ONO-donor ligands: syntheses, structures and catalytic applications in C[BOND]C cross-coupling reactions

      Rupesh Narayana Prabhu, G. Narendra Babu and Samudranil Pal

      Version of Record online: 14 JUL 2016 | DOI: 10.1002/aoc.3544

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      Syntheses, X-ray structures and spectroscopic characteristics of three new palladium(II) complexes of general formula [Pd(Ln)(PPh3)] (H2Ln = 1-((2-hydroxy-5-R-phenylimino)methyl)naphthalen-2-ols) are reported. All three complexes act as effective catalysts in one-pot C[BOND]C cross-coupling reactions of arylboronic acids with aryl halides to form diaryl ketones.

  2. Book reviews

  3. Full papers

    1. A robust synthesis and characterization of superparamagnetic CoFe2O4 nanoparticles as an efficient and reusable catalyst for green synthesis of some heterocyclic rings

      Mahmoud Abd El Aleem Ali El-Remaily, Ahmed M. Abu-Dief and Rafat M. El-Khatib

      Version of Record online: 14 JUL 2016 | DOI: 10.1002/aoc.3536

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      A robust synthesis and characterization of superparamagnetic CoFe2O4 nanoparticles as an efficient and reusable catalyst for green synthesis of some heterocyclic rings

    2. Redox active and inactive binuclear cobalt(II) and zinc(II) complexes with N6O/N3O coordinating ligands: synthesis, biological activities and cytotoxicity

      Dong-Dong Li, Na Zhang, Zi-bo Yang and Zun-Wei Tao

      Version of Record online: 13 JUL 2016 | DOI: 10.1002/aoc.3548

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      Four redox active and inactive cobalt(II) and zinc(II) complexes with N6O/N3O coordinating ligands have been synthesized and structurally characterized. They display efficient oxidative cleavage of supercoiled DNA indicating singlet oxygen is involved in the cleavage process. Cytotoxicity studies show that IC50 values of the complexes are more or less equal to that of cisplatin against the HeLa cell line, revealing that they have the potential to act as effective metal-based anticancer drugs.

    3. Schiff base complex of palladium immobilized on magnetic nanoparticles: an efficient and recyclable nanocatalyst for C[BOND]C coupling reactions

      Somaieh Rezaei, Arash Ghorbani-Choghamarani and Rashid Badri

      Version of Record online: 13 JUL 2016 | DOI: 10.1002/aoc.3531

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      A Schiff base complex of palladium was immobilized on Fe3O4 magnetic nanoparticles and characterized using VSM, TGA, TEM, SEM, FT-IR and ICP-OES techniques. The catalytic activity of this catalyst was examined in Suzuki and Heck cross coupling reactions.

    4. Betti base-modified magnetic nanoparticles as a novel basic nanocatalyst in Knoevenagel condensation and its related palladium nanocatalyst in Suzuki coupling reactions

      Payam Heidari, Ramin Cheraghali and Hojat Veisi

      Version of Record online: 11 JUL 2016 | DOI: 10.1002/aoc.3532

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      The Betti base supported on the surface of Fe3O4 NPs as a novel magnetic base nanocatalyst and also their ability to immobilize palladium NPs as a magnetic palladium nanocatalyst in Suzuki coupling reactions was described.

    5. Ferrite nanoparticles supported on natural wool in one-pot tandem oxidative reactions: strategy to synthesize benzimidazole, quinazolinone and quinoxaline derivatives

      Ahmad Shaabani and Zeinab Hezarkhani

      Version of Record online: 7 JUL 2016 | DOI: 10.1002/aoc.3542

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      Wool-supported ferrite nanoparticles as heterogeneous catalysts were synthesized and used in the one-pot tandem oxidative reaction of aromatic hydrocarbons of petroleum naphtha in the absence of any other oxidizing reagent or initiator.

    6. Piperazine- and DABCO-bridged dinuclear N-heterocyclic carbene palladium complexes: synthesis, structure and application to Hiyama coupling reaction

      Haozhen Wang and Jin Yang

      Version of Record online: 7 JUL 2016 | DOI: 10.1002/aoc.3543

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      Four dinuclear NHC–Pd complexes were prepared by reaction of imidazolinium salts, PdCl2 and bridging ligands in one pot or by direct cleavage of [Pd(μ-Cl)(Cl)(NHC)]2 with the bridging ligands. Catalytic performance of the obtained palladium catalysts was investigated for Hiyama coupling reaction.

    7. Transfer hydrogenation of aryl ketones with homogeneous ruthenium catalysts containing diazafluorene ligands

      Mehmet Fırat Baran, Feyyaz Durap, Murat Aydemir and Akın Baysal

      Version of Record online: 7 JUL 2016 | DOI: 10.1002/aoc.3538

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      Seven new Ru(II) comlexes bearing 4,5-diazafluorene moiety and an arene ligand were synthesized and characterized. Catalytic activities of these complexes toward the transfer hydrogenation of aromatic ketones were tested. The products of catalysis were obtanied with high conversion rates of between 80–90%.

    8. Magnetic carbon nanotube-supported imidazolium cation-based ionic liquid as a highly stable nanocatalyst for the synthesis of 2-aminothiazoles

      Zohre Zarnegar and Javad Safari

      Version of Record online: 7 JUL 2016 | DOI: 10.1002/aoc.3540

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      The synthesis is reported of the first ionic liquid-stabilized CNT-Fe3O4 as a stable nanocatalyst for the synthesis of 2-aminothiazole derivatives.

    9. Biosynthesis of palladium nanoparticles as a heterogeneous and reusable nanocatalyst for reduction of nitroarenes and Suzuki coupling reactions

      Hojat Veisi, Nesa Hajimoradian Nasrabadi and Pourya Mohammadi

      Version of Record online: 5 JUL 2016 | DOI: 10.1002/aoc.3517

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      A green chemistry approach for the synthesis of Pd nanoparticles using gum Oak as a reducing, capping and stabilizing agent was reported. Also, the heterogeneous catalyst Pd-NPs@Oak Gum show good activity in the reduction of nitroarenes and in the Suzuki cross-coupling reaction.

    10. Nicotine functionalized-silica palladium (II) complex: a highly efficient, environmentally benign and recyclable nanocatalyst for C-C bond forming reactions under mild conditions

      Abdol R. Hajipour, Nayereh S. Tadayoni and Fatemeh Mohammadsaleh

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/aoc.3507

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      Nano palladium(II) catalyst stabilized in functionalized- nicotine silica matrix was successfully prepared, characterized and evaluated as a novel heterogeneous nanocatalyst in Suzuki and Sonogashira cross-coupling reactions. In this eco-friendly catalytic system, grafted nicotine as a quaternary ammonium salt containing a coordinating center, plays an important role and increases the efficiency of palladium(II) species during the reaction.

    11. Amidophosphine-stabilized palladium complexes catalyse Suzuki–Miyaura cross-couplings in aqueous media

      Josef Jansa, Tomáš Řezníček, Libor Dostál, Zdena Růžičková, Filip Bureš and Roman Jambor

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/aoc.3539

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      A simple and efficient procedure is reported for Suzuki reaction in aqueous media catalysed by stabilized palladium complexes 1–6. The acidity of the NH proton in 3–6 plays a role in catalytic activity and that in pure water increases when utilizing Pd complex with more acidic NH protons. The concentration of palladium catalysts can be reduced to 0.5 mol% without substantial loss of conversion. The possible recovery of 1 from water was also investigated.

    12. Magnetic NiFe2O4 nanoparticles: efficient, heterogeneous and reusable catalyst for synthesis of acetylferrocene chalcones and their anti-tumour activity

      Ahmed M. Abu-Dief, Ibrahim F. Nassar and Wafaa H. Elsayed

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/aoc.3521

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      A robust synthesis for magnetic NiFe2O4 nanoparticles via hydrothermal technique was investigated. The prepared magnetic NiFe2O4 nanoparticles were characterized by powder x-ray, SEM, TEM, HR-TEM, EDAX, TGA, IR analysis and vibrating sample magnetometry. Moreover, the prepared magnetic NiFe2O4 nanoparticles have been used as an efficient, cheap and eco-friendly catalyst for the Claisen-Schmidt condensation reaction between acetylferrocene 1 with different aldehydes 2a-m (aromatic and/or heterocyclic) yielding acetylferrocene chalcones 3a-m in excellent yields, easy work-up, reduced reaction time.

    13. Synthesis of palladium complexes derived from imidazolidin-2-ylidene ligands and used for catalytic amination reactions

      Emine Özge Karaca, Nevin Gürbüz, Onur Şahin, Orhan Büyükgüngör and İsmail Özdemir

      Version of Record online: 30 JUN 2016 | DOI: 10.1002/aoc.3541

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      New Pd–N-heterocyclic carbene complexes have been synthesized and characterized. The activity of the Pd(II) complexes in the coupling reaction of anilines or amines with bromobenzene was investigated. These complexes exhibited high catalytic activities in the direct synthesis of triarylamines and secondary amines in a single step.

    14. Poly(ethylene glycol)- and glucopyranoside-substituted N-heterocyclic carbene precursors for the synthesis of arylfluorene derivatives using efficient palladium-catalyzed aqueous Suzuki reaction

      Zhonggao Zhou, Yan Zhao, Hongyu Zhen, Zhenghuan Lin and Qidan Ling

      Version of Record online: 27 JUN 2016 | DOI: 10.1002/aoc.3522

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      Compound 1 was prepared in 75% yield. Glucopyranoside-functionalized N-heterocyclic (NHC) carbene precursors 2, 3, 4, 5 conjugated with PEG chains were synthesized and combined directly with Pd(OAc)2, which was used as an efficient and recyclable catalyst in Suzuki coupling in water–ethanol in air. The resulting 2-arylfluorene and 2,7-diarylfluorene derivatives were obtained in high isolated yields (86–98%). The PEG chain increased the water solubility and steric bulk of the NHC precursors, and also improved their catalytic activity.

    15. A new nano-Fe3O4-supported organocatalyst based on 3,4-dihydroxypyridine: an efficient heterogeneous nanocatalyst for one-pot synthesis of pyrazolo[3,4-b]pyridines and pyrano[2,3-d]pyrimidines

      Mozhgan Pirhayati, Ali Kakanejadifard and Hojat Veisi

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3534

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      A new nano-Fe3O4-supported organocatalyst based on 3,4-dihydroxypyridine: an efficient heterogeneous nanocatalyst for one-pot synthesis of pyrazolo[3,4-b]pyridines and pyrano[2,3-d]pyrimidines.

    16. Synthesis and catalytic study of open metal site metal–organic frameworks of Cu3(BTC)2 microbelts in selective organic sulfide oxidation

      Sadegh Rostamnia, Hassan Alamgholiloo, Maryam Jafari, Rezan Rookhosh and Amir Reza Abbasi

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3528

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      The synthesis of open metal site metal-organic frameworks of Cu3(BTC)2 with microbelt morphology and a study of the catalytic oxidation of organic sulfides are reported. This CuBTC was found to be an efficient, selective and waste-free green heterogeneous co-catalyst for the green H2O2 catalytic oxidation of sulfides.

    17. Nickel-catalyzed Buchwald–Hartwig amination of pyrimidin-2-yl tosylates with indole, benzimidazole and 1,2,4-triazole

      Hai-Peng Gong, Zheng-Jun Quan and Xi-Cun Wang

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3527

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      A nickel-catalyzed Buchwald–Hartwig amination of pyrimidin-2-yl tosylates with indole, benzimidazole and 1,2,4-triazole is presented. The catalyst Ni(dppp)Cl2 proved to be tolerant of various pyrimidin-2-yl tosylates as well as nitrogen heterocyclic nucleophiles including indole, benzimidazole and 1,2,4-triazole.

    18. A green approach for the synthesis of 2-oxazolidinones using gold(I) complex immobilized on KCC-1 as nanocatalyst at room temperature

      Seyed Mohsen Sadeghzadeh

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3511

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      The application of a novel gold(I)-containing ionic liquid-based KCC-1 catalyst for the cyclization of propargylic amines with CO2 to provide 2-oxazolidinones is reported. High catalytic activity and ease of recovery from the reaction mixture using an external magnet, and several recycle runs without significant loss in performance are additional eco-friendly attributes of this catalytic system.

    19. Desulfonative pd-catalyzed coupling of aryl trifluoroborates with arylsulfonyl chlorides

      Zhen Wei, Dazhong Xue, Haisheng Zhang and Jinyu Guan

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3504

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      A Pd-catalyzed cross-coupling of aryl trifluoroborates with arylsulfonyl chlorides has been achieved. This transformation is a new method for the Suzuki–Miyaura-type reaction of aryl trifluoroborates via the cleavage of C&bond;S bonds, thus providing an alternative synthesis of biaryls. The reported cross-coupling reactions are tolerant to many common functional groups regardless of electron-donating or electron-withdrawing nature, making these transformations attractive alternatives to the traditional Suzuki–Miyaura coupling approaches.

    20. Preparation of porous g-C3N4/Ag/Cu2O: a new composite with enhanced visible-light photocatalytic activity

      Shuang Liang, Yuming Zhou, Zhilan Cai and Chenguang She

      Version of Record online: 24 JUN 2016 | DOI: 10.1002/aoc.3523

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      A new composite, namely porous g-C3N4/Ag/Cu2O, with enhanced visible-light photocatalytic performance has been synthesized through chemical adsorption of Ag-doped Cu2O on porous g-C3N4. Using rhodamine B as organic pollutant to be degraded under the irradiation of visible light, different mass ratios of Ag/Cu2O doped on porous g-C3N4 led to enhanced photocatalytic performance of the composite compared to pure porous g-C3N4.

    21. CuFeO2/tetrabutylammonium bromide catalyzes selective synthesis of 1,4-disubstituted 1,2,3-triazoles in neat water at room temperature

      Abdol R. Hajipour, Morteza Karimzadeh, Farzaneh Fakhari and Hirbod Karimi

      Version of Record online: 16 JUN 2016 | DOI: 10.1002/aoc.3526

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      A completely green medium including water as a solvent and antiviral CuFeO2 as a catalyst is described for the synthesis of 1,4-disubstituted 1,2,3-triazoles.

    22. Functionalized silica nanoparticles for trapping Pb2+ ions via diazo-azomethine scaffolds

      Priyanka Narula, Ruchi Mutneja, Raghubir Singh and Varinder Kaur

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/aoc.3513

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      Dye coated silica based sorbent for the adsorption of Pb2+ ions has been synthesized by one pot synthesis of silica nanoparticles in the presence of diazo-azomethine molecule possessing silatranyl side chain. The experimental results showed good agreement with Langmuir sorption isotherm model and showed maximum adsorption capacity of 460.4 mg g-1, which is far better than the reported materials.The sorbent can be regenerated, reused, and compatible for the adsorption of Pb2+ ions from green leafy vegetables.

    23. Copper(II) nanoparticles: an efficient and reusable catalyst in green oxidation of benzyl alcohols to benzaldehydes in water

      Razieh Mirsafaei, Majid M. Heravi, Tayebeh Hosseinnejad and Shervin Ahmadi

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/aoc.3509

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      Copper(II) nanoparticle immobilized onto modified silica mesoporous KIT-5 nanocomposite was prepared. The APTES group on KIT-5 was manipulated as a suitable coordinating agent for Copper(II) and fully characterized by FT-IR, SEM, EDX, ICP, TGA, XRD and UV-Vis methods. This novel transition metal supported heterogeneous surface was used as an effective catalyst in low loading for selective oxidation of differently substituted benzylic alcohols in water, using H2O2 as oxidant to give the corresponding carbonyl compounds in high to excellent yields.

    24. Preparation and characterization of Fe3O4@SiO2/APTPOSS core–shell composite nanomagnetics as a novel family of reusable catalysts and their application in the one-pot synthesis of 1,3-thiazolidin-4-one derivatives

      Javad Safaei-Ghomi, Seyed Hadi Nazemzadeh and Hossein Shahbazi-Alavi

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/aoc.3520

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      Octakis[3-(3-aminopropyltriethoxysilane)propyl]octasilsesquioxane (APTPOSS) and SiO2 have been successfully anchored on the surface of Fe3O4 nanoparticles and characterized using XRD, SEM, VSM, DLS, EDS, TGA and FT-IR. These nanoparticles were used as an efficient new heterogeneous catalyst for the one-pot three-component synthesis of 1,3-thiazolidin-4-ones under solvent-free conditions.

  4. Reviews

    1. Synthesis and antioxidant activities of Schiff bases and their complexes: a review

      Wail Al Zoubi, Abbas Ali Salih Al-Hamdani and Mosab Kaseem

      Version of Record online: 14 JUN 2016 | DOI: 10.1002/aoc.3506

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      A general overview of antioxidant applications of Schiff bases and their complexes is given in this review. A brief history of the synthesis and reactivity of Schiff bases and their complexes is presented.

  5. Full papers

    1. First report of a nano-Cu2O-catalyzed protocol for homo-coupling reaction of terminal alkynes in water/ionic liquid medium

      Bo-Xiao Tang, Xiao-Niu Fang, Ren-Yun Kuang, Jian-Hong Wu, Qiao Chen, Shao-Jun Hu and Yi-Lin Liu

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3525

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      A new, efficient and green protocol for the nano-Cu2O-catalyzed homo-coupling reaction of terminal alkynes has been developed, using water/ionic liquid as an environmentally friendly solvent. The nano-Cu2O-catalyzed methodology is a good supplement to copper catalyst for the Glaser-type homo-coupling reaction.

    2. Facile synthesis of tetrahydrobenzoxanthenones via a one-pot three-component reaction using an eco-friendly and magnetized biopolymer chitosan-based heterogeneous nanocatalyst

      Ali Maleki, Morteza Aghaei and Nakisa Ghamari

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3524

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      A metallic, green, magnetically recoverable and efficient heterogeneous nanocomposite was prepared and characterized. Its catalytic efficiency was examined in an important organic multicomponent reaction for the synthesis of chemically and biologically important tetrahydrobenzoxanthenone derivatives.

    3. Effect of silylated triarylphosphine ligands on rhodium-catalyzed hydrosilylation

      Jiayun Li, Mei Xue, Ying Bai, Jiajian Peng and Wenjun Xiao

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3519

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      A series of silylated triarylphosphines was synthesized. Hydrosilylation reactions of styrene with triethoxysilane catalyzed by RhCl3/silylated triarylphosphine complexes were investigated.

    4. One-pot synthesis of 1- and 5-substituted 1H-tetrazoles using 1,4-dihydroxyanthraquinone–copper(II) supported on superparamagnetic Fe3O4@SiO2 magnetic porous nanospheres as a recyclable catalyst

      Mohsen Esmaeilpour, Jaber Javidi and Saeed Zahmatkesh

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3518

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      Synthesis of 1- and 5-substituted 1H-tetrazoles using 1,4-dihydroxyanthraquinone–copper(II) supported on Fe3O4@SiO2 nanospheres

    5. Facile synthesis of alkynyl-, aryl- and ferrocenyl-substituted pyrazoles via Sonogashira and Suzuki–Miyaura approaches

      Sedef Karabiyikoglu and Metin Zora

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3516

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      A robust synthesis of heavily substituted 4-alkynyl/aryl-5-ferrocenyl/phenyl-1-phenylpyrazoles via Sonogashira and Suzuki–Miyaura approaches is described, providing a library of functionalized pyrazoles for biological studies.

    6. Transition metal complexes of a novel quinoxaline-based tridentate ONO donor ligand: synthesis, spectral characterization, thermal, in vitro pharmacological and molecular modeling studies

      Chellaian Justin Dhanaraj and Jijo Johnson

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3514

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      Some novel quinoxaline based metal complexes were synthesized and characterized. The influence of chelation in the ligand with metal ions on the biological activities has been studied. The compounds have better biological properties and were rationalized by theoretical studies.

    7. Palladium 2-mercapto-N-propylacetamide complex anchored onto MCM-41 as efficient and reusable nanocatalyst for Suzuki, Stille and Heck reactions and amination of aryl halides

      Mohsen Nikoorazm, Arash Ghorbani-Choghamarani, Nourolah Noori and Bahman Tahmasbi

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3512

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      Pd-MPA@MCM-41 catalyst was prepared by a post-grafting method, characterized using various techniques, and applied as a catalyst for Suzuki, Stille, Heck and amination reactions.

    8. Biaryl formation via Suzuki and Stille coupling reactions using palladium nanoparticle/polymeric N-heterocyclic carbene grafted silica as recyclable and efficient catalyst

      Soheila Ghasemi, Fatemeh Farjadian and Bahman Tamami

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3508

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      Pd nanoparticles supported on polymeric N-heterocyclic carbene grafted silica (Si-PNHC-Pd) are introduced. Pd0 nanoparticle formation was confirmed using X-ray photoelectron spectroscopy. The modified structure has been applied successfully in biaryl formation via Suzuki and Stille coupling reactions.

    9. Natural hydroxyapatite-supported MnO2: a green heterogeneous catalyst for selective aerobic oxidation of alkylarenes and alcohols

      Ahmad Shaabani, Hadi Afaridoun and Shabnam Shaabani

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3505

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      Natural hydroxyapatite-supported MnO2 was easily prepared in situ from reduction of potassium permanganate with natural hydroxyapatite derived from cow bones. The catalytic activity of the synthesized catalyst was investigated for the aerobic oxidation of alkylarenes and alcohols to their corresponding carbonyl compounds, showing excellent catalytic performance, without the need for any other oxidizing agent.

  6. Reviews

    1. Synthesis of iron chalcogenides from single source precursors

      Um-e-Habiba, Amin Badshah and Raja Azadar Hussain

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3501

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      Effect of precursor, temperature, reaction time, surfactants and their concentrations on morphology of iron chalcogenide between 1989 to 2015 is critically reviewed

  7. Full papers

    1. Flexible, dicationic imidazolium salts for in situ application in palladium-catalysed Mizoroki–Heck coupling of acrylates under aerobic conditions

      Marilyn Daisy Milton and Parul Garg

      Version of Record online: 13 JUN 2016 | DOI: 10.1002/aoc.3503

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      The synthesis, characterization and in situ catalytic performance of new flexible and functionalized N,N′-disubstituted imidazolium-based dicationic salts in Mizoroki–Heck coupling of acrylates with aryl bromides under aerobic conditions are described. 1H NMR studies confirmed the in situ generation of normal N-heterocyclic carbenes from the C-2 position of imidazol-2-ylidene ring. Low catalytic loading, broad functional group tolerance, short reaction times and good to excellent isolated yields are the significant features of the catalytic system.

  8. Reviews

    1. Progress on the synthesis and catalytic and anti-migration properties of ferrocene-based burning rate catalysts

      Weidong Zhou, Li Wang, Haojie Yu, Rongbai Tong, Qing Chen, Junhua Wang, Xianpeng Yang, Zain-ul-Abdin and Muhammad Saleem

      Version of Record online: 9 JUN 2016 | DOI: 10.1002/aoc.3502

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      Synthesis of ferrocene-based polymers and derivatives as ferrocene-based burning rate catalysts, contradictions in the burning rate catalytic mechanisms and migration mechanism of ferrocene-based burning rate catalysts in the propellant have been reviewed.

  9. Full papers

    1. Hexacyanoferrate-based ionic liquids as Fenton-like catalysts for deep oxidative desulfurization of fuels

      Wei Jiang, Hongping Li, Sheng Yin, Xin Wang, Wei Liu, Hui Liu, Wenshuai Zhu and Huaming Li

      Version of Record online: 9 JUN 2016 | DOI: 10.1002/aoc.3500

      Thumbnail image of graphical abstract

      Deep desulfurization of fuel can be obtained by [C4Py]3Fe(CN)6 as a catalyst and [C8mim]PF6 as a extractant. Compared with other Fenton-like catalysts, it was found the desulfurization performance was less sensitive to the H2O2 concentration.

    2. Facile preparation of highly stable and active hybrid palladium nanoparticles: effectual, reusable and heterogeneous catalyst for coupling reactions

      Mehdi Adib, Zahra Yasaei, Rahman Karimi-Nami, Vahid Khakyzadeh and Hojat Veisi

      Version of Record online: 9 JUN 2016 | DOI: 10.1002/aoc.3499

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      Palladium nanoparticles were supported on Fe3O4@-NH2@Murexide using a simple and efficient method, and characterized. The efficiency of the synthesized catalyst was evaluated via the Suzuki and Sonogashira reactions which showed remarkable results of cross-couplings.

    3. Highly modulated bisindoles: ligands for copper-catalyzed Sonogashira reaction

      Xiu Wang, Zhenhua Wang, Ya Wu, Yanlong Luo, Guofang Zhang, Yajun Jian, Huaming Sun, Weiqiang Zhang and Ziwei Gao

      Version of Record online: 6 JUN 2016 | DOI: 10.1002/aoc.3510

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      Bisindoles (BIMs) were developed as new N,N′ donor ligands for copper-catalyzed Sonogashira reactions. L9 efficiently accelerated CuCl (5%) with a wide range of variously substituted aryl iodides for coupling to both alkyl- and aryl-substituted terminal alkynes with good to excellent yields. In addition, a gram-scale preparation of BIMs was also established, which not only supports sufficient ligand library for the catalytic reaction, but also provides a reliable approach for the synthesis of BIM core structure-containing natural products.

    4. Selective tetrahydropyranylation of alcohols and phenols using titanium(IV) salophen trifluoromethanesulfonate as an efficient catalyst

      Maryam Yadegari and Majid Moghadam

      Version of Record online: 6 JUN 2016 | DOI: 10.1002/aoc.3515

      Thumbnail image of graphical abstract

      Titanium(IV) salophen trifluoromethanesulfonate as catalyst enables efficient and selective tetrahydropyranylation of alcohols and phenols with 3,4-dihydro-2H-pyran. Primary, secondary and tertiary alcohols, and also phenols, were converted to their corresponding tetrahydropyranyl ethers in high yields and short reaction times at room temperature. Investigation of chemoselectivity of this method showed discrimination between activity of primary alcohols in the presence of secondary and tertiary alcohols and phenols. This heterogenized catalyst was reused several times without loss of its catalytic activity.

    5. Synthesis, characterization and biological evaluation of a cobalt(II) complex with 5-chloro-8-hydroxyquinoline as anticancer agent

      Hai-Rong Zhang, Ting Meng, Yan-Cheng Liu, Zhen-Feng Chen, You-Nian Liu and Hong Liang

      Version of Record online: 23 MAY 2016 | DOI: 10.1002/aoc.3498

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      A new cobalt(II) complex of 5-chloro-8-hydroxyquinoline was synthesized, and its biological activity was investigated. The complex interacted with calf thymus DNA via an intercalative binding mode. Studies of anticancer activity and mechanism showed that the complex exhibited good cytotoxicity against T-24 cells and it significantly induced T-24 cell apoptosis via a mitochondrial dysfunction pathway.

    6. Synthesis and structure of a new ternary monocopper(II) complex containing mixed ligands of 2,2′-diamino-4,4′-bithiazole and picrate: in vitro anticancer activity, molecular docking and reactivity towards DNA

      Xi-Ling Wang, Kang Zheng, Ling-Yang Wang, Yan-Tuan Li, Zhi-Yong Wu and Cui-Wei Yan

      Version of Record online: 23 MAY 2016 | DOI: 10.1002/aoc.3497

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      A new ternary copper(II) complex was synthesized and structurally characterized. The effects of different co-ligands on DNA-binding properties and in vitro anticancer activities were explored theoretically and experimentally.

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