LiOH-mediated N-monoalkylation of α-amino acid esters and a dipeptide ester using activated alkyl bromides
作者:Jong Hyun Cho、B.Moon Kim
DOI:10.1016/s0040-4039(01)02394-2
日期:2002.2
Selective N-monoalkylation of α-aminoesters with activated alkyl bromides was studied using various alkali or alkali earth metal bases. In the production of N-monoalkylated amino ester derivatives and suppression of N,N-dialkylation, lithium hydroxide was more effective than any other alkali or alkali earth bases examined. Using this protocol, a variety of N-alkylated α-aminoesters and even dipeptide