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Asymmetric Allylic Alkylation of β‐Ketoesters with Allylic Alcohols by a Nickel/Diphosphine Catalyst
Authors:Dr. Yusuke Kita  Dr. Rahul D. Kavthe  Hiroaki Oda  Prof. Dr. Kazushi Mashima
Affiliation:Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
Abstract:Asymmetric allylic alkylation of β‐ketoesters with allylic alcohols catalyzed by [Ni(cod)2]/(S)‐H8‐BINAP was found to be a superior synthetic protocol for constructing quaternary chiral centers at the α‐position of β‐ketoesters. The reaction proceeded in high yield and with high enantioselectivity using various β‐ketoesters and allylic alcohols, without any additional activators. The versatility of this methodology for accessing useful and enantioenriched products was demonstrated.
Keywords:alkylation  allylic compounds  asymmetric catalysis  enantioselectivity  nickel
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