Boron-Catalyzed Direct Aldol Reactions of Pyruvic Acids
作者:Doris Lee、Stephen G. Newman、Mark S. Taylor
DOI:10.1021/ol902322r
日期:2009.12.3
Interactions between pyruvic acids and diphenylborinic acid form the basis of an efficient, direct, boron-catalyzed aldol reaction that takes place in water at room temperature with low catalyst loadings. Both boronic and borinic acids function as catalysts, with the latter demonstrating particularly high activity. A wide range of aldehydes, including enolizable species, may be employed, delivering