REVERSAL OF DIASTEREOSELECTIVITY IN THE ADDITION OF C-NUCLEOPHILES TO N-TRIMETHYLSILYL IMINES VIA GRIGNARD DERIVED ORGANO COPPER-BORON TRIFLUORIDE REAGENTS
The N-trimethylsilyl imines of O-protected alpha-hydroxy aldehydes react with RCuMgXI BF3 to give beta-amino alcohols with high anti diastereoselectivity.