Author(s): WANG Zhiyong, YUAN Shizuo, CHA Zhenggen, ZHANG Zude
Pages: 1231-1235,1109
Year: 2003 Issue:  9
Journal: Chinese Journal of Chemistry
Keyword:  coupling reaction; gallium mediator; aqueous media;
Abstract: 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.