Asymmetric hydrogenation and allylic substitution reaction with novel chiral pinene-derived N,P-ligands
摘要:
A series of new chiral tetrahydroquinoline ligands, derived from chiral alpha-pinene, were successfully synthesized. Iridium and palladium complexes of these ligands were proven to be efficient catalysts for enantioselective hydrogenation and allylic substitution reactions with moderate to excellent enantioselectivities (90-95% ee) and high yields. (C) 2009 Elsevier Ltd. All rights reserved.
Development of Chiral Terminal-Alkene−Phosphine Hybrid Ligands for Palladium-Catalyzed Asymmetric Allylic Substitutions
作者:Zhaoqun Liu、Haifeng Du
DOI:10.1021/ol101069y
日期:2010.7.2
A variety of novel chiral terminal-alkene phosphine hybrid ligands were successfully developed from diethyl L-tartrate for palladium-catalyzed asymmetric allylic alkylations, etherifications, and amination to give the desired products in excellent yields and ee's.