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Title:
ASYMMETRIC HYDROGENATION CATALYST
Document Type and Number:
WIPO Patent Application WO/2010/061909
Kind Code:
A1
Abstract:
Provided is a catalyst for producing an optically active aldehyde by selective asymmetric hydrogenation of an α,β-unsaturated aldehyde, particularly a catalyst that is insoluble in the reaction mixture and is used to obtain optically active citronellal, which is useful as a fragrance, by selective asymmetric hydrogenation of citral, geranial or neral.  Also provided is a method for producing the corresponding optically active aldehyde.  The α,β-unsaturated aldehyde is subjected to asymmetric hydrogenation using a solid catalyst comprising an optically active compound and a metal-supporting product wherein a carrier supports at least one metal selected from the group consisting of the elements in Groups 8 through 10 of the Periodic Table.

Inventors:
MAEDA Hironori (Corporate Research & Development Division 4-11, Nishiyawata 1-chome, Hiratsuka-sh, Kanagawa 73, 〒2540073, JP)
前田 裕徳 (〒73 神奈川県平塚市西八幡1丁目4番11号 高砂香料工業株式会社研究所開発本部内 Kanagawa, 〒2540073, JP)
Application Number:
JP2009/070005
Publication Date:
June 03, 2010
Filing Date:
November 27, 2009
Export Citation:
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Assignee:
TAKASAGO INTERNATIONAL CORPORATION (37-1, Kamata 5-chome Ohta-k, Tokyo 21, 〒1448721, JP)
高砂香料工業株式会社 (〒21 東京都大田区蒲田五丁目37番1号 Tokyo, 〒1448721, JP)
MAEDA Hironori (Corporate Research & Development Division 4-11, Nishiyawata 1-chome, Hiratsuka-sh, Kanagawa 73, 〒2540073, JP)
International Classes:
B01J31/28; C07C45/62; C07C47/02; C07B53/00; C07B61/00
Foreign References:
JP2004533455A
JPS5414911A
JP2008515843A
Other References:
See also references of EP 2353714A1
Attorney, Agent or Firm:
TSUJII Kochi et al. (NAKAMURA & PARTNERS, Shin-Tokyo Bldg. 3-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 55, 〒1008355, JP)
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