Invention Grant
US08674144B2 Catalyst for asymmetric hydrogenation and method for manufacturing optically active carbonyl compound using the same
有权
用于不对称氢化的催化剂和使用其制备光学活性羰基化合物的方法
- Patent Title: Catalyst for asymmetric hydrogenation and method for manufacturing optically active carbonyl compound using the same
- Patent Title (中): 用于不对称氢化的催化剂和使用其制备光学活性羰基化合物的方法
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Application No.: US13304925Application Date: 2011-11-28
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Publication No.: US08674144B2Publication Date: 2014-03-18
- Inventor: Shinya Yamada , Hironori Maeda , Yoji Hori
- Applicant: Shinya Yamada , Hironori Maeda , Yoji Hori
- Applicant Address: JP Tokyo
- Assignee: Takasago International Corporation
- Current Assignee: Takasago International Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-265555 20101129
- Main IPC: C07C45/62
- IPC: C07C45/62 ; B01J31/28

Abstract:
The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active peptide compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same.
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