Abstract
A series of trifluoromethylated amino alcohol ligands, which had been designed and conveniently prepared, were successfully applied in the enantioselective Reformatsky reaction and addition of diethylzinc to N-(diphenylphosphinoyl)imine, respectively. The influence of the substituents on C-3 position and the amino moiety on the enantioselectivity has been carefully investigated. In the best cases, ligand 1b exhibited good selectivity for the enantioselective Reformatsky reaction in 86% ee and ligand 12d provided excellent enantioselectivity in the addition of diethylzinc to N-(diphenylphosphinoyl)imine with 95% ee.
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