Synthesis of a new type of P,N-ligand with a spiro skeleton for Ir-catalyzed asymmetric hydrogenations
摘要:
A new type of chiral phosphine-quinoline ligand bearing a spiro[4,4]-1,6-nonadiene scaffold was designed and synthesized. Its cationic iridium complex has been characterized by X-ray diffraction analysis and evaluated in the catalytic asymmetric hydrogenation of alkene and imine derivatives, giving the corresponding hydrogenation products with high activity albeit moderate enantioselecitivity. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of a new type of P,N-ligand with a spiro skeleton for Ir-catalyzed asymmetric hydrogenations
摘要:
A new type of chiral phosphine-quinoline ligand bearing a spiro[4,4]-1,6-nonadiene scaffold was designed and synthesized. Its cationic iridium complex has been characterized by X-ray diffraction analysis and evaluated in the catalytic asymmetric hydrogenation of alkene and imine derivatives, giving the corresponding hydrogenation products with high activity albeit moderate enantioselecitivity. (C) 2010 Elsevier Ltd. All rights reserved.