作者:Martin J. O'Donnell、Gwendolyn K. Cook、David B. Rusterholz
DOI:10.1055/s-1991-26625
日期:——
Higher imine esters 1a-h and 7a-b of amino acids and dipeptides are prepared in 68-91% yield by saponification of the benzophenone Schiff base methyl esters 3a-d and 6 using phase-transfer techniques followed by O-alkylation with an alkyl halide. The procedure occurs with retention of configuration at the α-carbon except with phenylglycine derivatives.
氨基酸和二肽的高亚胺酯1a-h和7a-b通过皂化苯甲酮席夫碱甲酯3a-d和6,采用相转移技术,随后与烷基卤进行O-烷基化,产率在68-91%之间。该过程在α-碳上保留构型,除了苯基甘氨酸衍生物外。