1,2-Asymmetric induction in dianionic functionalization reactions of L-aspartic acid diesters 1
作者:Ian B. Parr、Anthony B. Dribben、Simon R. Norris、Mark G. Hinds、Nigel G. J. Richards
DOI:10.1039/a900796b
日期:——
number of experimental factors. We now report that the nature of the electrophile and the work-up protocol both influence the level of stereocontrol in the alkylation of N-benzyloxycarbonyl aspartic acid esters. In addition, the stereochemical preference for high anti selectivity in the reaction can be reversed by increasing the steric bulk of the α-ester. Application of these observations has allowed