Axially chiral phosphine–oxazoline ligands in silver(I)-catalyzed asymmetric Mannich reaction of N-Boc aldimines with trimethylsiloxyfuran
作者:Qian-Yi Zhao、Min Shi
DOI:10.1016/j.tet.2011.03.046
日期:2011.5
Axiallychiralphosphine–oxazolineligand L6 was found to be a fairly effective chiralligand in silver(I)-catalyzed asymmetricMannichreaction of N-Boc aldimines with trimethylsiloxyfuran to give the corresponding adducts in up to 97% yield, 7:1 dr and 86% ee (major diastereoisomer).