Applied Organometallic Chemistry

Cover image for Vol. 30 Issue 7

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

VIEW

  1. 1 - 47
  1. Full papers

    1. 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.

    2. 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.

    3. 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.

    4. 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.

    5. 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.

    6. 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.

    7. 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.

    8. 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.

    9. 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.

    10. 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.

  2. 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.

  3. 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.

  4. 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

  5. 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.

  6. 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.

  7. Full papers

    1. Application of Pd-2A3HP-MCM-41 to the Suzuki, Heck and Stille coupling reactions and synthesis of 5-substituted 1H-tetrazoles

      Mohsen Nikoorazm, Arash Ghorbani-Choghamarani and Maryam Khanmoradi

      Version of Record online: 9 JUN 2016 | DOI: 10.1002/aoc.3494

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      We have synthesized an ecofriendly heterogeneous catalyst by anchoring palladium onto the surface of organically modified mesoporous silica. The catalyst showed high activity in the Suzuki, Heck and Stille cross-coupling reactions and the synthesis of 5-substituted 1H-tetrazoles.

    2. 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

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      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.

    3. 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.

    4. 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.

    5. 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

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      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.

    6. Preparation of 1,2,4,5-tetrasubstituted imidazoles over magnetic core–shell titanium dioxide nanoparticles

      Ardeshir Khazaei, Ahmad Reza Moosavi-Zare, Fatemeh Gholami and Vahid Khakyzadeh

      Version of Record online: 26 MAY 2016 | DOI: 10.1002/aoc.3491

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      Magnetic core shell titanium dioxide nanoparticles (Fe3O4@SiO2@TiO2) was efficiently applied for the preparation of 1,2,4,5-tetrasubstituted-imidazoles derivatives by the one-pot multi-component condensation of benzil with aldehydes, primary amines and ammonium acetate under solvent-free conditions.

    7. Nano tetraimine Pd(0) complex as an efficient catalyst for phosphine-free Suzuki reaction in water and copper-free Sonogashira reaction under aerobic conditions

      Zeinab Mandegani, Mozaffar Asadi and Zahra Asadi

      Version of Record online: 26 MAY 2016 | DOI: 10.1002/aoc.3486

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      The nano tetraimine Pd (0) complex was applied as an effective heterogeneous catalyst. The catalyst was useful for phosphine-free Suzuki reaction in water at 80 oC and Cu-free Sonogashira reaction in DMF at 100 oC. The catalyst was easily recovered from reaction mixture and reused at least for six cycles.

    8. 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.

    9. 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.

    10. Effective catalytic oxidation of alcohols and alkenes with monomeric versus dimeric manganese(II) catalysts and t-BuOOH

      Ibrahim Kani and Serkan Bolat

      Version of Record online: 23 MAY 2016 | DOI: 10.1002/aoc.3495

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      Mono- and bimetallic Mn(II) complexes with benzoic acid and neutral bidentate amine ligands were synthesized and characterized using single-crystal X-ray diffraction analyses. Both complexes catalyse the oxidation of alcohols and alkenes in a homogeneous catalytic system with tert-butyl hydroperoxide in acetonitrile.

    11. Synthesis of α-alkenyl-β-hydroxy adducts by α-addition of unprotected 4-bromocrotonic acid and amides with aldehydes and ketones by chromium(II)-mediated reactions

      Ludger A. Wessjohann, Harry Wild, Leonildo A. Ferreira and Henri S. Schrekker

      Version of Record online: 23 MAY 2016 | DOI: 10.1002/aoc.3488

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      Organochromium reactions allow for chemoselective C-C cross-couplings of complex substrates: the reaction of free carboxylic acid- and amide-functionalized halides with carbonyl electrophiles without the need of protection.

    12. CuO nanoparticle-catalyzed diaminations for synthesis of benzimidazole derivatives

      Dan Yu, Qing You, Xinming Zhang, Guide Tao and Wu Zhang

      Version of Record online: 23 MAY 2016 | DOI: 10.1002/aoc.3492

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      Excellent yields of benzimidazole derivatives can be obtained with the assistance of CuO nanoparticles. The catalyst can be recycled and reused without any significant decrease in catalytic activity.

    13. Immobilization of Ru(terpyridine)(2,6-pyridinedicarboxylate) onto MCM-41 and its catalysis in the oxidation of alcohols

      Yuecheng Zhang, Xiaochen Sun, Hongyu Zhang and Jiquan Zhao

      Version of Record online: 17 MAY 2016 | DOI: 10.1002/aoc.3484

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      The complex Ru(terpyridine)(2,6-pyridinedicarboxylate) was successfully grafted onto MCM-41 using a multi-step grafting method. This immobilized ruthenium showed excellent performance in the oxidation of various secondary alcohols to the corresponding ketones with tert-butyl hydroperoxide as an oxidant under solvent-free conditions. The immobilized complex also showed advantages of easy recovery and good recyclability.

    14. A heterometal (Pd–Pb) organic framework: synthesis, structure and heterogeneous catalytic application

      Yanwei Ren, Ou Jiang, Jiawei Li and Hang Zeng

      Version of Record online: 17 MAY 2016 | DOI: 10.1002/aoc.3493

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      A robust heterometallic (Pb–Pd) organic framework is highly active, stable and recyclable as a catalyst for the Suzuki–Miyaura and Heck coupling reactions.

    15. Pd-catalyzed direct C[BOND]H cyanation of picolinamides via bidentate chelation assistance

      Lulu Wang, Minxin Yang, Xiaochong Liu, He Song, Lu Han, Wenyi Chu and Zhizhong Sun

      Version of Record online: 17 MAY 2016 | DOI: 10.1002/aoc.3489

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      A bidentate chelation-assisted palladium-catalyzed direct C[BOND]H cyanation of picolinamides with trimethylsilycyanide is described. The reactions of various derivatives gave the corresponding cyanated products in moderate to good yields under mild conditions. In addition, the cyanated products could transform into materials with some valuable functional groups in good yields.

    16. Synthesis and characterization of azo sulfaguanidine complexes and their application for corrosion inhibition of silicate glass

      Nadia A. El-Wakiel

      Version of Record online: 17 MAY 2016 | DOI: 10.1002/aoc.3487

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      An azo dye ligand of sulfaguanidine with 5-nitro-8-hydroxyquinoline has been synthesized in addition to its Mn(II), Co(II), Ni(II) and Cu(II) complexes. The prepared compounds have been well characterized using various physicochemical techniques. Qualitative and quantitative glass durability experiments have been performed.

    17. One-step synthesis of Pt@three-dimensional graphene composite hydrogel: an efficient recyclable catalyst for reduction of 4-nitrophenol

      Peipei Zou, Meisong Wang, Liang Zhao, Liyi Dai and Yuanyuan Wang

      Version of Record online: 11 MAY 2016 | DOI: 10.1002/aoc.3496

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      A Pt@3DG composite hydrogel with a unique porous nanostructure was prepared and used as an efficient catalyst for the reduction of 4-nitrophenol to 4-aminophenol under mild conditions. The influence of graphene architecture on catalytic activities is comparatively investigated by loading the same amount of Pt on reduced graphene oxide. Pt@3DG exhibits very high catalytic activity.

    18. Immobilization of phosphotungstic acid in an amino-containing metal–organic framework for oxidative desulfurization

      Liwei Zhang, Songhai Wu, Yong Liu, Feifei Wang, Xu Han and Hongyu Shang

      Version of Record online: 11 MAY 2016 | DOI: 10.1002/aoc.3490

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      Phosphotungstic acid in an amino-containing metal–organic framework (PTA/NH2-MOF) was prepared as a catalyst in oxidative desulfurization for the first time. The apparent activation energy obtained for the desulfurization reaction was 34.1 kJ mol−1. PTA/NH2-MOF exhibited good catalytic activity.

    19. Cu–S-(propyl)-2-aminobenzothioate on magnetic nanoparticles: highly efficient and reusable catalyst for synthesis of polyhydroquinoline derivatives and oxidation of sulfides

      Arash Ghorbani-Choghamarani, Bahman Tahmasbi, Parisa Moradi and Nasrin Havasi

      Version of Record online: 25 APR 2016 | DOI: 10.1002/aoc.3478

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      An efficient heterogenized copper catalyst was synthesized on Fe3O4 magnetic nanoparticles and was characterized. The activity of this organometallic catalyst was studied in the synthesis of polyhydroquinolines and also for selective oxidation of sulfides to sulfoxides in environmentally friendly solvent or under solvent-free conditions. The catalyst was separated using an external magnet and reused for several runs without significant loss of catalytic efficiency.

    20. Synthesis of a new iron–sulfur cluster compound and its photocatalytic H2 evolution activity through visible light irradiation

      Xiao-Bo Wang, Hui-Qin Zheng, Heng Rao, Hong-Chang Yao, Yao-Ting Fan and Hong-Wei Hou

      Version of Record online: 21 APR 2016 | DOI: 10.1002/aoc.3481

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      A new iron–sulfur cluster compound was designed, synthesized and characterized. Photocatalytic hydrogen evolution using the target bioinspired complex was evaluated though a noble-metal-free homogeneous system. The total hydrogen production reached a turnover number of 404 (versus catalyst) under optimal conditions

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    21. Oxidation of ethylbenzene to styrene oxide in the presence of cellulose-supported Pd magnetic nanoparticles

      Sajjad Keshipour and Nastaran Kalam Khalteh

      Version of Record online: 14 APR 2016 | DOI: 10.1002/aoc.3485

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      Pd and Fe3O4 nanoparticles were deposited on the N-(2-aminoethyl)acetamide functionalized cellulose for application in the catalytic oxidation reaction of ethylbenzene. Styrene oxide was obtained as the sole product of the oxidation reaction during 24h. This reaction has some advantages such as one-pot transformation of ethylbenzene to styrene oxide, high yield, excellent selectivity and magnetically recoverable catalyst. Also, the recovered catalyst is applicable in the oxidation reaction for 4 times without decrease in yield.

    22. Synthesis and characterization of a novel magnetic nano-palladium Schiff base complex: application in cross-coupling reactions

      Millad Aghayee, Mohammad Ali Zolfigol, Hassan Keypour, Meysam Yarie and Leila Mohammadi

      Version of Record online: 13 APR 2016 | DOI: 10.1002/aoc.3477

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      A novel and task-specific nano-magnetic Schiff base ligand with phosphate spacer using 2-aminoethyl dihydrogen phosphate for coating of nano-magnetic Fe3O4 is introduced and successfully employed as catalyst for Sonogashira and Mizoroki–Heck C–C coupling reactions.

    23. Another application of (NH4)42[MoVI72MoV60O372(CH3COO)30(H2O)72] as a highly efficient recyclable catalyst for the synthesis of dihydropyrano[3,2-c]chromenes

      Marziyeh Rohaniyan, Abolghasem Davoodnia and Ahmad Nakhaei

      Version of Record online: 12 APR 2016 | DOI: 10.1002/aoc.3479

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      We report another application of (NH4)42[MoVI72MoV60O372(CH3COO)30(H2O)72], a Keplerate-type giant-ball nanoporous isopolyoxomolybdate, as catalyst in the synthesis of 2-amino-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3-carbonitriles. The reactions occur in ethanol–water at room temperature and the process is operative with various aldehydes, giving the corresponding products in high yields. Other beneficial features include short reaction times, simple work-up and the recyclability and reusability of the catalyst for up to five consecutive runs.

    24. Synthesis, structure and cytotoxic activity of diethyltin N-[(2-oxyphenyl)methylene]phenylalaninates

      Qingtao Liu, Hao Zhang, Xiaoliang Zheng, Wenqiang Wang and Laijin Tian

      Version of Record online: 12 APR 2016 | DOI: 10.1002/aoc.3480

      Thumbnail image of graphical abstract

      Four new diethyltin N-[(2-oxyphenyl)methylene]phenylalaninates have been synthesized and characterized. Their trimeric macrocyclic and dimeric binuclear structures are discussed. Their in vitro cytotoxic activities against two human tumor cell lines have been tested.

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