Horner Synthesis of Didehydroamino Acid Derivatives in a Liquid-Liquid Two-Phase System
作者:Pier Giuseppe Ciattini、Enrico Morera、Giorgio Ortar
DOI:10.1055/s-1988-27493
日期:——
Horner olefination of aldehydes 1 with N-acyl-2-(diethoxyphosphoryl) glycin ethyl esters 2 to give didehydroamino acid derivatives 3 can be performed advantageously in a 20% aqueous sodium hydroxide/dichloromethane two-phase system in the absence of any typical phase-transfer catalyst.
Horner-Emmons 烯化反应利用 N-酰基-2-(二乙氧基磷酰基)甘氨酸乙酯 2 与醛 1 反应,在无需典型相转移催化剂的情况下,可以优势地在 20% 氢氧化钠水溶液/二氯甲烷两相体系中进行,得到二脱氢氨基酸衍生物 3。