The benzophenone imine of glycinamide was alkylated using ion pair extraction (RX, 10% aq. NaOH, Bu4NHSO4 (1 equiv.), CH2Cl2, rt) to give the α-monosubstituted products, which were then alkylated a second time using stronger basic conditions (KO-t-Bu, THF, 0 °C, RX). Crystal structures of the Schiff bases of glycinamide, an α-monosubstituted and an α,α-disubstituted product were reported.Key words: benzophenone imines, Schiff bases, alkylation, ion pair extraction (IPE), phase-transfer catalysis (PTC), anhydrous base, X-ray crystal structures.
甘氨酰胺的二苯甲酮亚胺通过离子对萃取(RX,10%aq. NaOH,Bu4NHSO4(1 等分),CH2Cl2,rt)进行烷基化,得到了 α-单取代产物,然后使用更强的碱性条件(KO-t-Bu,THF,0 °C,RX)对其进行第二次烷基化。报告了甘氨酰胺的希夫碱、α-单取代和α,α-二取代产物的晶体结构。关键词:二苯甲酮亚胺、希夫碱、烷基化、离子对萃取(IPE)、相转移催化(PTC)、无水碱、X 射线晶体结构。