Coupling Reaction of Carbonyl Compounds Mediated by Gallium Metal in Aqueous Media  

作　　者：汪志勇 袁仕祯 查正根 张祖德 

机构地区：[1]Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China

出　　处：《Chinese Journal of Chemistry》2003年第9期1231-1235,共5页中国化学（英文版）

基　　金：theNationalNaturalScienceFoundationofChina (No .5 0 0 730 2 1) ;theNaturalScienceFoundationofAnhuiProvince (No .0 10 46 30 1)andEducationDepartmentofAnhuiProvince (No .2 0 0 2kj330ZD)

摘　　要：A simple and effective pinacol coupling of various aromatic aldehydes mediated by gallium in good yields has been carried out. The reaction is highly effective in water in the presence of KOH or HCl and was strongly affected by the steric environment surrounding the carbonyl group. Aliphatic aldehydes, ketones and aromatic ketones appear inert under the same reaction conditions.A simple and effective pinacol coupling of various aromatic aldehydes mediated by gallium in good yields has been carried out. The reaction is highly effective in water in the presence of KOH or HCl and was strongly affected by the steric environment surrounding the carbonyl group. Aliphatic aldehydes, ketones and aromatic ketones appear inert under the same reaction conditions.

关 键 词：coupling reaction gallium mediator aqueous media 

分 类 号：O621[理学—有机化学]