CATALYZED ENANTIOSELECTIVE HYDROGENATION;
IRIDIUM CATALYSTS;
TRISUBSTITUTED OLEFINS;
PHOSPHITE-OXAZOLINES;
N;
P LIGANDS;
P;
N LIGANDS;
COMPLEXES;
DERIVATIVES;
ALKENES;
CYCLOPROPANATION;
D O I:
10.1016/j.tetasy.2009.05.020
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
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.