P(RNCH<sub>2</sub>CH<sub>2</sub>)<sub>3</sub>N: Efficient Catalysts for Transesterifications, Acylations, and Deacylations
作者:Palanichamy Ilankumaran、J. G. Verkade
DOI:10.1021/jo981819m
日期:1999.4.1
Extremely strong nonionic superbases of the type P(RNCH(2)CH(2))(3)Ncatalyze the transesterification of carboxylic acid esters with high selectivity and yields at 25 degrees C. These bases also catalyze the deacetylation of alcohols undermildconditions in quantitative yields. Using enol acetates as acylating agents, primary and secondary alcohols are efficiently protected as acetates through the