Catalytic Asymmetric Synthesis of α,α,α-Trifluoromethylamines by the Copper-Catalyzed Nucleophilic Addition of Diorganozinc Reagents to Imines
作者:Caroline Lauzon、André B. Charette
DOI:10.1021/ol0607847
日期:2006.6.1
[reaction: see text] A copper-catalyzed asymmetric addition of diorganozinc reagents to N-phosphinoylimines has been developed for the synthesis of chiral alpha,alpha,alpha-trifluoromethylamines. The trifluoromethyl ketimines, generated in situ from the corresponding hemiaminals, led to the chiral amides in high yields (71-89%) and excellent enantiocontrol (91-99% ee).
[反应:见正文]已开发出一种铜催化的不对称二有机锌试剂加到N-膦基嘧啶中的方法,用于合成手性的α,α,α-三氟甲基胺。由相应的半缩醛胺原位产生的三氟甲基酮亚胺可高收率(71-89%)和优异的对映体控制(91-99%ee)产生手性酰胺。