First highly stereoselective synthesis of anti-α-trifluoromethyl-β-amino acid derivatives
作者:Taichi Shimada、Masamitsu Yoshioka、Tsutomu Konno、Takashi Ishihara
DOI:10.1039/b603882d
日期:——
The Reformatsky-type reaction of 2-bromo-3,3,3-trifluoropropanoic imide with various types of imines, in the presence of ZnBr2 as a Lewis acid in THF at 0 °C for 3 h, gave the corresponding α-trifluoromethyl-β-amino acid derivatives in a highly anti-selective manner.
在含有Lewis酸ZnBr2的四氢呋喃中,在0°C下反应3小时,2-溴-3,3,3-三氟丙酸亚胺与各种亚胺类化合物发生Reformatsky型反应,高选择性地生成了相应的α-三氟甲基-β-氨基酸衍生物。