LIGAND AND ASYMMETRIC CATALYST USING THE SAME - National University Corporation Tokyo University

Title:

LIGAND AND ASYMMETRIC CATALYST USING THE SAME

Document Type and Number:

Japanese Patent JP3671209

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To obtain an asymmetric catalyst widely acting on the whole ketones, capable of synthesizing an optically active siloxynitrile.
SOLUTION: This ligand is represented by general formula 1 (R1, R2 and R3 are each a substituent group on an aromatic ring; X is P or As; n is 1-3). This asymmetric catalyst comprises a metal bonded to the catechol part of the ligand, for example, see figure 1.

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Inventors:

Masakatsu Shibasaki
Kanai
Yoshitaka Hamashima

Application Number:

JP2001169922A

Publication Date:

July 13, 2005

Filing Date:

June 05, 2001

Export Citation:

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Assignee:

National University Corporation Tokyo University

International Classes:

B01J31/18; B01J31/22; C07B53/00; C07F5/00; C07F7/00; C07F7/18; C07F7/28; C07F9/655; C07F9/6596; C07F9/74; C07F9/80; (IPC1-7): C07F9/655; B01J31/22; C07B53/00; C07F5/00; C07F7/00; C07F7/18; C07F7/28; C07F9/80

Domestic Patent References:

JP2000191677A
JP3294254A
JP63150256A

Attorney, Agent or Firm:

Kosaku Sugimura

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