Enantioselective synthesis of β-amino alcohols and α-amino acids via a copper catalyzed addition of diorganozinc reagents to N-phosphinoylimines
作者:Jean-Nicolas Desrosiers、Alexandre Côté、André B. Charette
DOI:10.1016/j.tet.2005.03.113
日期:2005.6
Enantioenriched β-amino alcohols were prepared via an asymmetric addition of diethylzinc, catalyzed by the BozPHOS·Cu(I) complex, on in situ formed N-phosphinoylimines. The nature of the hydroxyl protecting groups was found to affect the enantioselectivities. Subsequent deprotection and oxidation of N-phosphinoyl β-amino alcohols afforded opticallyactiveα-aminoacids (97% ee).