(R)-(+)-N-Methylbenzoguanidine ((R)-NMBG) catalyzed kinetic resolution of racemic secondary benzylic alcohols with free carboxylic acids by asymmetric esterification
作者:Kenya Nakata、Isamu Shiina
DOI:10.1039/c1ob05736g
日期:——
the kineticresolution of racemic secondary benzylic alcohols in the presence of achiral carboxylicacids and pivalic anhydride. The use of a tertiary amine in this reaction is not necessary to attain good chemical yields of the products. It was determined that diphenylacetic acid could be employed as the most suitable acyl donor for achieving a high enantioselectivity for the kineticresolution of