Reversal of enantioselectivity using catalysts containing multiple stereogenic centres
作者:Alexander J.A. Cobb、Charles M. Marson
DOI:10.1016/s0957-4166(01)00290-7
日期:2001.7
N-methylation of ligands with multiple stereogenic centres is shown to provide the product of the opposite configuration in significant enantiomeric excess (e.e), in the addition of diethylzinc to aldehydes. The catalysts possess stereogenic centres appended to a trans-1,2-cyclohexanediamine core. (C) 2001 Elsevier Science Ltd. All rights reserved.