Chinese Journal of Chemistry

Cover image for Vol. 32 Issue 9

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

Editors: Guozhen Ji, Shengming Ma

Online ISSN: 1614-7065

Associated Title(s): Chemistry - A European Journal, Chemistry – An Asian Journal, Israel Journal of Chemistry, The Chemical Record

VIEW

  1. 1 - 32
  1. Communications

    1. Asymmetric Hydrogenation of 2-Aryl-5,6-dihydropyrazine Derivatives with Chiral Cationic Ruthenium Diamine Catalysts

      Yong Li, Yanmei He, Fei Chen and Qinghua Fan

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400422

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      The first asymmetric hydrogenation of 5,6-dihydropyrazines catalyzed by chiral cationic Ru-diamine complex (R,R)-1a was developed, affording chiral piperazine derivatives with good enantioselectivities (up to 89% ee).

    2. A Highly Enantioselective Mannich-Type Reaction of Glycine Schiff Base Catalyzed by a Cinchoninium Salt

      Zhonglin Tao, Arafate Adele, Xiang Wu and Liuzhu Gong

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400453

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      A chiral phase-transfer catalyst, derived from the combination of cinchona alkaloid backbone and BINOL skeleton, enabled a Mannich reaction of glycine Schiff base with N-Boc-imines to generate α,β-diamino acid derivatives in excellent yields (up to 99%) and with high diastereoselectivities (up to >0:1) and enantioselectivities (up to 96% ee).

    3. Two New Triterpenoids from Lycopodium japonicum Thunb.

      Xiaojing Wang, Dequan Yu and Shishan Yu

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400456

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      Two new serratene-type triterpenoids were isolated from Lycopodium japonicum Thunb. along with eight known ones. Their structures were elucidated on the basis of extensive spectroscopic analysis.

    4. Palladium-Catalyzed 2H-1,2,3-Triazole-Directed Oxidative Alkoxylation of Arenes with Alcohols

      Wenjuan Shi and Zhangjie Shi

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400462

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      A palladium catalyzed ortho-alkoxylation of aryl C[BOND]H bond with alcohols was described. Trizaole was used as new directing group. A series of functional groups could be tolerated and the reaction is not sensitive to moisture and air.

  2. Full Papers

    1. Design, Synthesis, Photophysical Studies and Electrochemistry of Carbazole-, Oxadiazole-, and Oxadiazole-Triarylamine-Containing Rhenium(I) Diimine Alkynyl Complexes

      Wai-Kin Chung, Keith Man-Chung Wong and Vivian Wing-Wah Yam

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400442

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      A series of rhenium(I) diimine alkynyl complexes with various electron- and hole-transporting moieties has been synthesized and characterized. Their electronic absorption, emission and electrochemical properties have also been studied.

    2. Efficient and Practical Syntheses of Enantiomerically Pure (S)-(−)-Norcryptostyline I, (S)-(−)-Norcryptostyline II, (R)-(+)-Salsolidine and (S)-(−)-Norlaudanosine via a Resolution-Racemization Method

      Ruiheng Zhu, Zhangli Xu, Wei Ding, Shiling Liu, Xiaoxin Shi and Xia Lu

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400471

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      The enantiomerically pure tetrahydroisoquinolines (S)-(−)-norcryptostyline I [(S)-(−)-1], (S)-(−)-norcryptostyline II [(S)-(−)-2], (R)-(+)-salsolidine [(R)-(+)-3] and (S)-(−)-norlaudanosine [(S)-(−)-4] were obtained in 45%, 40%, 41% and 38% yields, respectively, via resolution of the racemic compounds (RS)-(±)-14. In addition, the compounds (R)-(+)-1, (R)-(+)-2, (S)-(−)-3 and (R)-(+)-4 from the mother liquors were efficiently racemized via a one-pot redox method in almost quantitative yields.

    3. Minimum Amount of Extracting Solvent of (A1A2···At−1)/(A2A3···At) Separation When Using Non-barren Extracting Solvent

      Fu-Xiang Cheng, Sheng Wu, Song-Ling Wang, Bo Zhang, Yan Liu, Chun-Sheng Liao and Chun-Hua Yan

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400475

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      Minimum amounts of extracting solvent and scrubbing agent solution (Smin and Wmin) should correspond to the S and W causing that the impurities just disappear in the final raffinate and extract respectively, while ASIR of some continuous stages around the feed stage (stage 134) has a same value of 1. The present article concluded that it has no influence upon Smin and Wmin required for a given (A1A2···At−1)/(A2A3···At) separation whether the employed extracting solvent and scrubbing agent solution are barren or not. Additionally at the aqueous outlet, the exiting flowrate of each component equals to the sum of the flowrate of this component from the feed and that entering stage 1 together with the extracting solvent, and this is also the case at the organic outlet.

    4. Tuning the Charge Transport Property of Naphthalene Diimide Derivatives by Changing the Substituted Position of Fluorine Atom on Molecular Backbone

      Xiao Zhang, Zhongli Wang, Shiyan Chen, Zheng Zhao, Wei Yuan, Huaping Wang and Xike Gao

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400488

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      Three naphthalene diimide derivatives fused 2-(1,3-dithiol-2-ylidene)-2-fluorophenylacetonitrile moieties were synthesized and their charge transport properties were tuned by changing the position of fluorine atom on the phenyl group.

    5. Synthesis and Structure of Azacalix[2]pyrimidine[2]triazines and Their Self-assembly in the Solid State

      Lixia Wang, Dexian Wang and Meixiang Wang

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400505

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      In the presence of different additives during the growth of single crystals, self complementary azacalix[2]pyrimidine[2]triazines containing amino (-NH2) groups gave varied self-assembled structures due to the formation of different intermolecular hydrogen bond motifs.

  3. Notes

    1. Extraction and Separation of Rare Earths from Nitrate Medium by Mixtures of p-Phosphorylated Calixarene and 1-Phenyl-3-methyl-4-benzoyl-pyrazalone-5

      Youcai Lu, Yanling Li, Yanfeng Bi and Wuping Liao

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400470

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      The mixtures of p-phosphorylated calixarene (L) and HPMBM exhibit synergistic effects on the gadolinium(III) extraction from nitrate medium.

  4. Reviews

    1. Recent Research Developments of Perovskite Solar Cells

      Yingzhuang Ma, Shufeng Wang, Lingling Zheng, Zelin Lu, Danfei Zhang, Zuqiang Bian, Chunhui Huang and Lixin Xiao

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400435

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      The perovskite-based inorganic-organic hybrid solar cells outrush as a superstar for solar power conversion. In this review, we summarized the recent development of this photovoltaic device. The materials, fabrication methods, charge transfer properties, stabilities, and microscopic mechanism are discussed. The outlook for future study and application is also given.

  5. Communications

    1. Co2(CO)8-mediated Selective Reductions of Propargyl Alcohol Derivatives to Alkenes

      Ying Dou, Ping Xing, Zuogang Huang and Biao Jiang

      Article first published online: 29 SEP 2014 | DOI: 10.1002/cjoc.201400396

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      In the presence of Co2(CO)8 and additives, propargyl alcohol derivatives could be reduced to alkenes in moderate to good yield. The selectivity of this reaction could be controlled by adding different additives: with H2O as the additive, the major configuration of product is Z-alkene; with CF3COOH as the additive, the major configuration of product is E-alkene.

  6. Full Papers

    1. Visible-Light Photocatalytic Conversion of Carbon Dioxide into Methane Using Cu2O/TiO2 Hollow Nanospheres

      Feng Bi, Muhammad Fahad Ehsan, Wei Liu and Tao He

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400476

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      The composite of Cu2O/TiO2 hollow nanospheres exhibit higher efficiency in photocatalytic reduction of CO2 into CH4 under visible-light irradiation than Cu2O because of the heterojunction formation in the composite and the improved catalyst stability.

    2. Synthesis of Functionalized 1-Benzamido-1,4-dihydropyridines via a One-Pot Two-Step Four-Component Reaction

      Jing Sun, Guoliang Shen, Yajing Xie and Chaoguo Yan

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400437

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      A one-pot four-component reaction of benzohydrazide, acetylenedicarboxylate, aromatic aldehydes and malononitrile in ethanol with triethylamine as base catalyst afforded functionalized 1-benzamido-1,4-dihydropyridines in satisfactory yields.

  7. Communications

    1. A Concise Synthesis of 2-(2-Hydroxyphenyl)acetonitriles via the o-Quinone Methides Generated from 2-(1-Tosylalkyl)phenols

      Bo Wu, Xiang Gao, Mu-Wang Chen and Yong-Gui Zhou

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400463

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      A concise synthesis of 2-(2-hydroxyphenyl)acetonitriles has been developed through reaction of trimethylsilyl cyanide and the o-quinone methides in situ generated from 2-(1-tosylalkyl)phenols under basic conditions. In addition, 2-(2-hydroxyphenyl)acetonitriles could be conveniently transformed to benzofuranones.

    2. Light Induced Inhibition of Protein Phosphatase Calcineurin

      Andres Quintero, Weilin Lin, Sophia Hermann and Yixin Zhang

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400432

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      A photo induced covalent inhibitor has been discovered for protein phosphatase calcineurin, the target of immunosuppressive drugs cyclosporin and tacrolimus.

  8. Full Papers

    1. Two Cluster-Based Coordination Polymers Derived from [Et4N][Tp*WS3(CuBr)3] and CuCN: Isolation, Structures and Amplified Third-Order Nonlinear Optical Responses

      Quan Liu, Wenhua Zhang, Zhenrong Sun and Jianping Lang

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400412

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      Two coordination polymers [Tp*WS3Cu3(µ3-DMF)(CN)3Cu]2·2DMF (2·2DMF, 2D network) and [Tp*WS3Cu3(µ3-DMF)(CN)3Cu(α-tolunitrile)]2·3MeCN (3·3MeCN, 1D ladder chain) were isolated from the reaction of a W/Cu/S precursor [Et4N][Tp*WS3(CuBr)3] (1) with three equiv. of CuCN in DMF/MeCN/benzonitrile or DMF/MeCN/α-tolunitrile mixed solvents. The third-order nonlinear optical responses of 2 and 3 in DMF were 10 times augmented compared to those of the precursor 1.

    2. A Novel Self-Penetrated Framework with New Topology Based on Rigid Ligands

      Guangxun Lyu, Qihui Chen, Feilong Jiang, Kang Zhou, Kongzhao Su, Lian Chen, Daqiang Yuan and Maochun Hong

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400425

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      A novel coordination polymer based on rigid ligands has been synthesized and structurally characterized, which exhibits a new 3D self-penetrated framework with new topology, while their fluorescent properties were also studied.

  9. Reviews

    1. Recent Advances of the Combination of Au/Acid Catalysis

      Shuo Zhang, Fang Wei, Chuangling Song, Jiong Jia and Zhenghu Xu

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400428

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      The combination of a gold catalyst with another acid catalyst, including Bronsted acid and Lewis acid, is possible to bring two distinctive catalytic systems together and deliver unprecedented new reactions. The recent progress in the Au/Acid relay catalysis was reviewed.

  10. Communications

    1. Asymmetric Pudovik Reaction of Chiral Fluoroalkyl α,β-Unsaturated Ketimines and Diphenyl Phosphite

      Peng Li, Min Jiang and Jin-Tao Liu

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400419

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      A series of fluoroalkylated α-amino phosphonates were successfully synthesized from the Pudovik reactions of chiral ?uoroalkyl α?β-unsaturated N-tert-butanesul?nyl ketimines derivated from (R)-tert-butanesulfinamide in good yields with high diastereoselectivities under mild conditions.

  11. Full Papers

    1. In Situ Preparation of Au-SH@SO3H-SBA-15 Catalyst with Enhanced Activity and Durability in Alkyne Hydration

      Fengxia Zhu and Hexing Li

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400408

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      A novel bifunctional Au-SH@SO3H-SBA-15 catalyst was synthesized through in situ reduction of Au3+ with SH-SBA-15. Au nanoparticles of the catalyst were formed with uniformed, narrow size distribution around 1–2 nm. The catalyst for water-medium alkyne hydration displayed higher efficiencies than its homogeneous catalysts. The robust catalyst could be easily recycled and used repetitively at least 9 times without significant loss of catalytic efficiency.

  12. Communications

    1. Synthesis of 6-Alkylidene-5,6-dihydro-4H-1,3-thiazine Derivatives via the Cyclization of N-3-Bromo-3-alkenylthioamides

      Shusu Shen and Yu Liu

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400394

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      Series of 6-alkylidene-5,6-dihydro-4H-1,3-thiazine derivatives were prepared in moderate to good yields. The cyclization is supposed to proceed via both the intramolecular vinylic nucleophilic substitution and the elimination-addition mechanisms (formation of acetylenic intermediates) in a competitive manner.

  13. Full Papers

    1. A Novel Dimeric BINOL for Enantioselective Recognition of 1,2-Amino Alcohols

      Krishnaswamy Velmurugan, Lijun Tang and Raju Nandhakumar

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400321

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      A novel auxillary chiral dimeric binol has been designed, synthesized, and used to enantioselectively recognize 1,2-amino alcohols through the three point of interactions, the reversible imine bond, resonance assisted hydrogen bonding and the hydrogen bonding by the additional chiral moiety introduced at the receptor.

    2. A Novel Efficient Ligand in Anionic Polymerization at Elevated Temperature

      Bo Chen, Jiming Wang, Minze Shu, Bin Zou, Yong Guan and Anna Zheng

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400351

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      It was confirmed that lithium phenoxide could associate with the active center to block the inserting tunnels in anionic polymerization. With lithium phenoxide, the stability of n-BuLi in THF at 0°C was greatly improved. Due to the steric hindrance effect, the lithium phenoxide could diminish the polymerization rate in the polymerization of both St and MMA. In the polymerization of Ip with lithium phenoxide, it was found that the formations of 1,2- and 1,4-configurations were impeded, while the formation of 3,4-configuration was promoted.

    3. Synthesis of Cs2.5H0.5PW12O40/TiO2 Nanocomposites with Dominant TiO2 {001} Facets and Related Photocatalytic Properties

      Yichen Hu, Yuanhang Ren, Gangfeng Tang, Cheng Wang, Min Tang, Bin Yue and Heyong He

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400383

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      TiO2 nanosheets with dominant {001} facets were coupled with Cs2.5H0.5PW12O40 to produce a highly efficient composite which shows improved photocatalytic activity in the degradation of RhB.

  14. Communications

    1. A Facile and Practical Process for the Synthesis of Polysubstituted Furans from Alkynes Using Atmospheric Oxygen as a Terminal Oxidant

      Jingxiu Xu, Xingdong Song and Jinwu Zhao

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400386

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      We present here a facile and practical procedure for the synthesis of tetrasubstituted furans from alkynes catalyzed by palladium acetate together with cupric acetate in acetic acid, using atmospheric oxygen as a terminal oxidant. Various internal aromatic alkynes afforded the target furans in satisfactory yield.

  15. Full Papers

    1. Sonochemical Synthesis of Graphene Oxide-Wrapped Gold Nanoparticles Hybrid Materials: Visible Light Photocatalytic Activity

      Yi Cui, Ding Zhou, Zhuyin Sui and Baohang Han

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400309

      Thumbnail image of graphical abstract

      Graphene oxide (GO)-wrapped gold nanoparticles (Au NPs) hybrid materials are constructed via one-pot sonochemical synthesis and self-assembly, using ethylene glycol as the reducing agent. The obtained materials possess enhanced photocatalytic activity under visible light irradiation, owing to the synergistic effect of the two components in the hybrid materials.

  16. Communications

    1. Modulating the Helicity of Sugar-Substituted Perylene Diimide Self-assemblies by Solvent Polarilities

      Qiang Guo, Junchao Wang, Lingyun Zhu and Zhixiang Wei

      Article first published online: 13 JUN 2014 | DOI: 10.1002/cjoc.201400218

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      The energy difference of systems in which molecules are coaxially arranged is small, leading to the phenomenon of the helical morphology of sugar-substituted perylene diimide being easily affected by the polarity of the solutions.

  17. Full Papers

    1. Carboxylatopillarene-Modified Reduced Graphene Oxides with High Water Dispersibility for Fluorescent Dye Sensing

      Ting Zhou, Hao Yu, Mingqiang Liu and Ying-Wei Yang

      Article first published online: 5 JUN 2014 | DOI: 10.1002/cjoc.201400238

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      Carboxylated pillar[5]arene (CP5) macrocycles were modified onto the surface of reduced graphene oxide (RGO) via covalent bonds to form new pillarene-functionalized RGO nanosheets, i.e., RGO-CP5, showing great potentials in the sensing and detection of analytes in aqueous solutions.

  18. Communications

    1. A BINOL Based Fluorescence Sensor for Distinction of D-Glucose

      Bangyu Xu, Jiting Hou, Kun Li, Zhengwei Lu and Xiaoqi Yu

      Article first published online: 5 JUN 2014 | DOI: 10.1002/cjoc.201400120

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      A BINOL-based fluorescent probe for glucose was presented, which could distinct D-glucose from other monosaccharides.

  19. Notes

    1. Self-Assembly of Chiral Nano-bowl from Chiral Pd-complex Building Corners and 4,7-Phenanthroline Linkers

      Lina Yu, Xuanfeng Jiang and Shuyan Yu

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201400085

      Thumbnail image of graphical abstract

      A chiral [M3L3]6+-type metallo-nanobowl was constructed from cis-protected mono-palladium complexes as chiral corners and 4,7-phenanthroline ligand (L) as linkers by metal-directed self-assembly in aqueous media.

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