Stereoselective Synthesis of Ethyl (<i>Z</i>)-3-Aryl-2-ethoxyacrylates: Wittig Reaction of Diethyl Oxalate
作者:R. Alan Aitken、Gail L. Thom
DOI:10.1055/s-1989-27446
日期:——
The Wittig olefination of diethyl oxalate with a variety of arylmethylenetriphenylphosphoranes 1 proceeds readily in tetrahydrofuran at room temperature to give ethyl 3-aryl-2-ethoxyacrylates 2 with a Z/E selectivity of ≥10:1.
草酸二乙酯与多种芳基亚甲基三苯基膦 1 在室温下于四氢呋喃中容易发生 Wittig 烯化反应,生成 3-芳基-2-乙氧基丙烯酸乙酯 2,Z/E 选择性≥10:1。