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Hydrogenation of N‐Acylcarbamates and N‐Acylsulfonamides Catalyzed by a Bifunctional [Cp*Ru(PN)] Complex
Authors:Masato Ito Prof Dr  Lee Wei Koo  Akio Himizu  Chika Kobayashi  Ayaka Sakaguchi  Takao Ikariya Prof Dr
Institution:Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2‐12‐1 O‐okayama, Meguro‐ku, Tokyo 152‐8552 (Japan), Fax: (+81)?357‐342‐637
Abstract:Awakening of the Cp one : The bifunctional complex 1 facilitates the interaction with substrates bearing less electrophilic carbon atoms than ketones, epoxides, and imides. The title reaction was applicable to the reduction of Evans' asymmetric alkylation products to the chiral alcohols along with good recovery of the chiral oxazolidinone auxiliary. EWG=electron‐withdrawing group.
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Keywords:alcohols  enantioselectivity  hydrogenation  ligand effects  ruthenium
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