Copyright © 2015 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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
Chao Niu, Gen Li, Adila Tuerxuntayi and Haji A. Aisa
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400820
A series of new chalcone derivatives which showed activator effect on tyrisinase were synthesized for the first time. Several compounds exhibited better activities than the control drug. Aftert that, the SAR of the compounds was summarized. Besides, several crystal structures of the compounds were got.
Wenling Li, Qian Liu, Hao Liu, Peilan Chen, Xi Yang and Yingying Liu
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201500054
FeCl3·6H2O-catalyzed oxidative coupling reactions of feruloytyamide protected by tert-butyl or bromine group produced the desired 8-8-coupled aryldihydronaphthalene products, which underwent the debutylation or debromination to concisely synthesize (±)-canabisin D.
Hao Zhang, Kechang Liu, Ruiquan Liu, Qibo Li, Yongqiang Li, Qingmin Wang and Shangzhong Liu
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201500046
Two series of tetrahydroisoindoline-1,3-diones containing an alkoxycarbonyl substituted 2-benzoxazolinone moiety were designed and synthesized. Compound 1h displayed excellent herbicidal effect against Abutilon theophrasti with ED50 values of 1.8 g AI·ha−1, and compound 1h could potentially be used as a new post-emergence herbicide for maize fields.
Yan Yang, Wentao Liu, Ningning Wang, Haijun Wang, Wei Li and Zhanxin Song
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201500030
A series of ionic liquids which possess the same cation and different anions were synthesized to explore the effect of anions on 5-hydroxymethylfurfural (HMF) preparation from glucose over AlCl3. Systematic experiments showed that N-methyl-2-pyrrolidone bromide ([NMP]Br) could promote selective conversion of fructose. Theoretical study indicated that Br− could also combine with Al3+, accelerating process of H-shift during glucose isomerization. This discovery can help us choose cocatalysts for low toxic metal, realizing selective conversion of cellulosic biomass conversion.
Nan Dai, Rui Shang, Mingchen Fu and Yao Fu
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201500035
The conversion of biomass-derived ethyl levulinate to γ-valerolactone was realized efficiently by utilizing Casey's catalyst and isopropanol via catalytic transfer hydrogenation.
Wen-Zhen Zhang, Xiang Ren and Xiao-Bing Lu
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201500011
A carboxylative coupling reaction of various primary amine with propargyl chlorides in the presence of DBU using carbon dioxide as carboxylative reagent was presented.
Hang Cong, Qiuju Chen, Qingxia Geng, Zhu Tao and Takehiko Yamato
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400886
The supramolecular catalysis of Q (cucurbituril) on the IBX (o-iodoxybenzoic acid) oxidation of o,m,p-benzenedimethanols in aqueous solvent and the host-guest interactions have been investigated.
Zhenhua He, Guoqiao Lai, Zhifang Li, Xiao Yuan, Yongjia Shen and Chengyun Wang
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400870
Copolymers PS-DyCz and PS-DyF were synthesized by Sonogashira coupling reaction.
Qiao Zhao, Liangshun Chen, Hongyue Lang, Shengying Wu and Limin Wang
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400868
The Pd(OAc)2/PPh3-catalyzed desulfonylative homodimerization of arenesulfonyl chlorides as an efficient method for the synthesis of biaryls was described. The corresponding products were obtained in good to excellent yields.
Dazhao Sun, Guofang Jiang, Zongbo Xie and Zhanggao Le
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400892
A novel methodology for the synthesis of bis(indolyl)methanes by the reaction of aromatic aldehydes and indole in water has been developed, and a series of desired products were obtained in moderate to excellent yields (from 65% to 97%) using 1.2 mg/mL α-chymotrypsin as biocatalyst.
Jiyan Liu, Wei Wang, Rui Wang and Lijun Gu
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400858
It was found for the first time that Cs2CO3 serves as highly efficient catalyst for the direct hydroxylation reactions of phosphonates under mild conditions. This reaction provides an efficient approach to quaternary α-hydroxy phosphonates, which possess intriguing biological activities and are widely used in many areas.
Xuzhuo Sun, Bo Li, Haibo Zhang and Xiaohai Zhou
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400653
A novel pseudorotaxane was synthesized by directly mixing CB[n] with [C4mim]Br, which form 3D structure by aid of hydrogen bonds. The crystal structure demonstrated that CB and [C4mim]Br formed a complex with the ratio 1:1. Besides the bound guest, there were two free ones in the pseudorotaxane as the solvent.
Fen Wu, Yiyang Zhang and Zhongqiang Yang
Article first published online: 30 MAR 2015 | DOI: 10.1002/cjoc.201400846
Amphiphilic DNA organic hybrids, containing DNA and organic molecules, e.g., polymer, dendron and lipid, self-assemble into a series of morphologies. Utilizing DNA hybridization, enzymatic activity and secondary structure, the morphologies of assemblies could be precisely regulated.
Junwei Shen, Yong Shi and Weisheng Tian
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400862
Using methyl (R)-5-bromo-4-methylpentanoate, we have accomplished a synthesis of (R)-muscone, a natural macrocyclic musk, based on chiral pool strategy.
Yingchun Su, Shenghua Ma, Kunpeng Jiang and Xiaojun Han
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400715
The fluorescence microscope images of different methyl viologen concentration (a, 0 µmol/L ; b, 38.89 µmol/L; c, 388.86 µmol/L and d, 3.89 mmol/L) droped onto 50% CdTe-paper-based substrates; e) intensity of the dotted plots from image a to d. The scale bar is 1000 µm.
Yuhua Liu and Lianming Yang
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400787
Cu(I)-(DAB-R) complexes were synthesized and used as catalyst for N-arylation. Cu(I)Cl(DAB-iPP)2 was found to be an efficient catalyst system for N-arylation of diarylamines and anilines with aryl halides, affording the desired products in good to excellent yields.
Liang Hao, Tong Zhang, Ge Chang and Hui Li
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400797
The fluorescent properties of a new planar Cu(II) coordination complex with conjugated, rigid and planar ligand in different organic solvents have been studied based on X-ray single-crystal diffraction analysis and the viewpoint of controlling supramolecular aggregation/deaggregation through π-π stacking in different organic solvents.
Peng Gao, Mingjin Fan, Zijing Bai and Yunyang Wei
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400802
An intermolecular two CC bond formation procedure for the synthesis of carbocycles mediated by hypervalent iodine(III) reagents was developed.
Huapeng Liu, Yaguo Gong, Taofeng Zhang, Na Li, Quanyi Zhao, Yonglin Chen, Bin Liu and Yawen Zheng
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400824
A series of CO-releasing molecules containing M(CO)5 (M=Mo, W and Cr) were synthesized. Among them, CORMs containing acetyl salicylamide-3-pyridine were evaluated for stability, cytotoxicity, cell cycle and apoptosis.
Zhanghai Gu, Li Li, Qianwen Bao and Fugen Yuan
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400826
Two lanthanocene diolate complexes were synthesized and structurally characterized. Their catalytic property for the polymerization of ε-caprolactone was studied.
Shi-Peng Luo, Hui Geng, Yu Wang and Pei-Qiang Huang
Article first published online: 9 MAR 2015 | DOI: 10.1002/cjoc.201400849
Wei Zhang, Yanjing Wang, Cuibing Bai, Jialong Wen and Naixing Wang
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400836
A novel and concise method for the direct synthesis of γ-nitro ketones and 1,3-dinitro compounds has been developed. It is the first time to report a domino reaction to synthesize aliphatic nitro compounds via domino Michael/retro-Claisen fragmentation reaction.
Shiyao Tang, Shu Liu, Zhiqiang Liu, Fengrui Song and Shuying Liu
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400789
A sequential extraction project, an HPLC-IT-MSn and an HPLC-Q-TOF-MS method were successfully established to separate and identify the constituents of DZXW.
Xiaoyan Zhu, Yonggang Wu, Lina Zhou, Yuan Wang, Hongchi Zhao, Baoxiang Gao and Xinwu Ba
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400793
Ladder polymers and model compounds were obtained through intramolecular cyclization reaction in the presence of acid from the precursors. The planar polymers and model compounds show untypical UV and PL properties for a rigid, planar, one-dimensional π-system. The regioisomers in intramolecular cyclization reaction can be clearly identified from syn- and anti-structures.
Sanlong Chen, Xiaolan Qiao, Heping Li and Hongxiang Li
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400811
Acceptor-donor-acceptor type compounds with 2-dicyanomethylen-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran, dicyanovinyl and 3-ethyl-2-thioxothiazolidin-4-one as electron acceptors were designed and synthesized. Their physicochemical properties were thoroughly investigated.
Yehui Chen, Guochang Qin, Liwen Yang and Nianfa Yang
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400819
The application of helical poly[(S)-3-vinyl-2,2′-dihydroxy-1,1′-binaphthyl] (L*) in the asymmetric addition of diethylzinc to aldehydes has been studied. The catalytic system employing 10 mol% of L* and 150 mol% of Ti(OiPr)4 was found to promote the addition of diethylzinc to a wide range of aromatic aldehydes, giving up to 99% enantiomeric excess (ee) and up to 93% yield of the corresponding secondary alcohol at 0°C. The chiral polymer can be easily recovered and reused without loss of catalytic activity as well as enantioselectivity.
Junhua Li and Daming Du
Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400829
Enantioselective synthesis of biologically active dihydropyrano[2,3-c]pyrazoles has been achieved through a squaramide-catalysed Michael addition/Thorpe-Ziegler type cyclization cascade reaction between arylidenepyrazolones and malononitrile. A series of optically active dihydropyano[2,3-c]pyrazoles were obtained in excellent yields (up to 99%) and moderate to good enantioselectivities (up to 79% ee) under mild reaction conditions.
Guiyan Liu, Bin Wu and Jianhui Wang
Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400765
A Grubbs-Hoveyda pre-catalyst having a trimeric resting state is presented. It was characterized by NMR, HRMS and elemental analysis. Catalytic study for ring-closing metathesis was evaluated. Highly activity for RCM of many substrates was showed.
Pei-Qiang Huang, Wei Ou and Jian-Liang Ye
Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400762
A versatile and divergent two-step transformation of malimides to racemic tetramates and tetramic acids is described. The method consists of Grignard reagent addition with malimides, and concentrated HCl-promoted chemoselective transformations of the latter.
Luqman Ali Shah, Wulian Chen, Mohammad Siddiq, Jianhua Hu, Angang Dong and Dong Yang
Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400751
Thermal and pH dual responsive P(NIPAM-co-VI) copolymer was used as carriers to load Ag nanoparticles for the first time. The nanoparticles could be stably dispersed at all pH values, and were favorable to be used as a catalyst at a wide pH range, but more efficient at low pH.