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-amino esters 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-amino esters and even dipeptide
使用各种碱
金属或碱土
金属碱,研究了用活化的烷基
溴对α-
氨基酯的选择性N-单烷基化。在N-单烷基化
氨基酯衍
生物的生产和N,N-二烷基化的抑制中,
氢氧化锂比任何其他所检查的碱
金属或碱土
金属碱更有效。使用该方案,已经使用各种活化的烷基
溴成功地制备了各种N-烷基化的α-
氨基酯,甚至二肽酯。