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Zhang W.-S.,Jiaozuo Teachers College | Xu W.-J.,Jiaozuo Teachers College | Zhang F.,Jiaozuo Vocational Education Center | Qu G.-R.,Henan Normal University
Chinese Chemical Letters | Year: 2013

Microwave-assisted tandem reaction of (Z)-arylvinyl bromides involving an elimination and homocoupling in the presence of DBU and CuI in DMF affords a variety of symmetrical 1,3-diynes in good to excellent yields. This tandem process, eliminating the need of volatile and savory terminal alkynes, provides an alternative to the conventional homocoupling methods for the synthesis of symmetrical 1,3-diynes. © 2013 Wen-Sheng Zhang, Gui-Rong Qu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. Source


Zhang W.,Jiaozuo Teachers College | Xu W.,Jiaozuo Teachers College | Zhang F.,Jiaozuo Vocational Education Center | Li J.,Jiaozuo Teachers College | And 2 more authors.
Research on Chemical Intermediates | Year: 2012

In situ treatment of 4-(2,2-dibromovinyl)phenol, which was prepared from 4-hydroxybenzaldehyde and carbon tetrabromide in CH 2Cl 2 under Corey-Fuchs conditions, with a diverse range of acids in the presence of dicyclohexyl-carbodiimide (DCC) and 4-dimethylaminopyridine (DMAP) gave the corresponding esters in high yields. © Springer Science+Business Media B.V. 2011. Source


Zhang W.,Jiaozuo Teachers College | Xu W.,Jiaozuo Teachers College | Zhang F.,Jiaozuo Vocational Education Center | Jin H.,Shanghai JiaoTong University | And 2 more authors.
Research on Chemical Intermediates | Year: 2014

Treatment of a variety of arynes in water-soluble ionic liquid [DMIM]Me2PO4 in the presence of catalytic amount of CuI and inexpensive NH3·H2O under aerobic conditions afforded the corresponding symmetrical 1,3-diynes in high yields. The ionic liquid could be reused for at least five times without apparent decrease of the yield. © 2013 Springer Science+Business Media Dordrecht. Source


Zhang W.-S.,Jiaozuo Teachers College | Xu W.-J.,Jiaozuo Teachers College | Zhang F.,Jiaozuo Vocational Education Center | Wang Y.-Z.,Jiaozuo Teachers College | And 3 more authors.
Journal of the Chinese Chemical Society | Year: 2012

3-Ferrocenyl acrylic acid, synthesized from ferrocenecarboxaldehyde and propandioic acid in water-insoluble ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate, [BMIM]PF 6) at 85 °C in high yield, was transformed to a series of 3-ferrocenyl acrylate of alcohols and phenols in water-soluble ionic liquid (1,3-dimethylimidazolium dimethylphosphate, [DMIM]Me 2PO 4) at room temperature in the presence of dicyclohexylcarbodiimide (DCC) and 4-dimethylaminopyridine (DMAP). © 2012 The Chemical Society Located in Taipei & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

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