Copyright © 2015 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 33, Issue 5
Xi-Long Lu, Tian-You Zhou, Doufeng Wu, Qiang Wen, Xin Zhao, Qiaowei Li, Qun Xiang, Jia-Qiang Xu and Zhan-Ting Li
Article first published online: 15 MAY 2015 | DOI: 10.1002/cjoc.201590011
The cover picture shows a novel porous organic polymer (POP) which was constructed through the condensation of triptycene tricatechol and 1,3,5-benzenetris(4-phenylboronic acid). POPs are a kind of organic materials which possess permanent porosity and thus have great potentials in the field of gas storage and separation. The as-prepared triptycene- based POP exhibits high H2 uptake (up to 1.84 wt% at 77 K, 1 bar), large CO2 adsorption capacity (up to 18.1 wt% at 273 K, 1 bar), and excellent CO2/N2 adsorption selectivity (up to 120/1). The influence of solvent on the gas adsorption performance of the POP has also been investigated. More details are discussed in the article by Zhao et al. on page 539–544.
Article first published online: 15 MAY 2015 | DOI: 10.1002/cjoc.201590012
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.
Hui-Jun Zhang, Zhengjian Wu, Weidong Lin and Ting-Bin Wen
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500059
The palladium-catalyzed direct C2- and further C7-acylation of indoles with aldehydes have been developed. This method provides a convenient pathway toward a variety of mono- and diacylated indoles.
Jie Chao, Xiangyuan Ouyang, Hongzhen Peng, Shao Su and Lianhui Wang
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500211
Here, we present a protocol for the assembly of DNA nanoribbons with only four oligonucleotides. DNA nanoribbons with different dimensions were successfully assembled with a 96-base scafford strand and three short staples. This approach suggests that there exists a vast design space for the creation of simple nucleic acid nanostructures which could facilitate their application in plasmonic or drug delivery.
Chunyang Chen, Junqi Yi, Haiyan Dong and Daoyong Chen
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500168
Monodisperse hybrid Janus nanofibers with the structure that one Au nanoparticle (AuNP) is connected to one end of a polymeric nanofiber were prepared by the self-assembly between polymeric micelles and the tadpole-like conjugates resulting from one-to-one complexation of long DNA chains with AuNPs.
Hui Yu, Yuegang Chen and Yonghao Zhang
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500190
Imides were synthesized through the oxidation of N-benzylamides by TBHP/TEMPO system in moderate to good yields.
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.
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500181
A novel porous organic polymer (POP) has been constructed. This triptycene-based POP exhibited high H2 uptake, large CO2 adsorption capacity, and excellent CO2/N2 adsorption selectivity.
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.
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.
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.
Shuo Cao, Shanshan Zhong, Changfeng Hu, Jie-Ping Wan and Chengping Wen
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500195
The environmentally benign catalytic system consisting of water/lactic acid has been developed for the synthesis of divers 1,4-dihydropyridines via different multicomponent reaction models.
Mingfeng Fang, Chunmeng Pan, Song Lu, Zhongxiang Lin and Guo-Yuan Lu
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500161
(1R,2R,3S,4R,7R)-7-Isopropyl-6-methylbicyclo[2.2.2]oct-5-ene-2,3-dicarboxylic acid anhydride was isolated from cycloaddition aducts of turpentine with maleic anhydride and its structure was characterized by extensive spectral data and single crystal X-ray analysis.
Minting Liang, Xiaofeng Xia, Xiang Liu and Hexing Li
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500072
A practical copper-diphosphine catalytic system was applied in the asymmetric hydrosilylation of aromatic ketones, in which inexpensive non-toxic polymethylhydrosiloxane was first efficiently used as reducing agent in air atmosphere and at room temperature.
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.
Zihao Li, Nannan Yan, Jianwei Xie, Ping Liu, Jie Zhang and Bin Dai
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500115
2-Hydroxybenzohydrazide-promoted CuI-catalyzed one-pot annulation of pyrrole-/imidazole-2-carboxaldehyde with 2-haloanilines for the synthesis of pyrrolo[1,2-α]- and imidazo[1,2-α]quinoxalines under relatively mild conditions is described.
Piotr Cyganowski, Dorota Jermakowicz-Bartkowiak, Jacek Chęcmanowski, Małgorzata Kujawska and Marek Bryjak
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201400866
The chloromethyl groups have been introduced into commercial S/DVB polymer matrixes via Interpenetrating Polymer Networks (IPN) synthesis, as a result, the new core-shell supports with accessible functionalities have been obtained.
Yuanyong Yao, Hua Shu, Bangcheng Tang, Shixue Chen, Zhongying Lu and Wei Xue
Article first published online: 5 MAY 2015 | DOI: 10.1002/cjoc.201500017
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.