Title:
DIPHOSPHINE LIGAND AND TRANSITION METAL COMPLEX USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/034975
Kind Code:
A1
Abstract:
Disclosed is a novel ligand. Also disclosed is a novel transition metal complex
produced by using the ligand, which shows excellent enantioselectivity and
catalytic efficiency, particularly shows high catalytic activity, in various
asymmetric synthesis reactions. The transition metal complex has, as a ligand,
a compound represented by the formula: [Chemical formula] wherein R4
represents a hydrogen atom or a C1-6 alkyl group which may have a substituent;
and R5 and R6 independently represent a C1-6 alkyl
group which may have a substituent or, in the group represented by the formula
below: R5 and R6 together form a group represented by the
formula below: wherein the ring B represents a 3- to 8-membered ring which may
have a substituent.
Inventors:
YAMANO MITSUHISA (JP)
GOTO MITSUTAKA (JP)
KAWAGUCHI SHINJI (JP)
YAMADA MASATOSHI (JP)
KAWAKAMI JUN-ICHI (JP)
GOTO MITSUTAKA (JP)
KAWAGUCHI SHINJI (JP)
YAMADA MASATOSHI (JP)
KAWAKAMI JUN-ICHI (JP)
Application Number:
PCT/JP2006/319095
Publication Date:
March 29, 2007
Filing Date:
September 20, 2006
Export Citation:
Assignee:
TAKEDA PHARMACEUTICAL (JP)
YAMANO MITSUHISA (JP)
GOTO MITSUTAKA (JP)
KAWAGUCHI SHINJI (JP)
YAMADA MASATOSHI (JP)
KAWAKAMI JUN-ICHI (JP)
YAMANO MITSUHISA (JP)
GOTO MITSUTAKA (JP)
KAWAGUCHI SHINJI (JP)
YAMADA MASATOSHI (JP)
KAWAKAMI JUN-ICHI (JP)
International Classes:
C07F9/50; B01J31/24; C07F9/572; C07B53/00; C07F1/08; C07F5/02; C07F15/00; C07F15/04
Foreign References:
| JP2004513950A | 2004-05-13 | |||
| JP2003231691A | 2003-08-19 | |||
| JPH04139192A | 1992-05-13 |
Other References:
See also references of EP 1927596A4
Attorney, Agent or Firm:
TAKASHIMA, Hajime (1-1 Fushimimachi 4-chome, Chuo-k, Osaka-shi Osaka 44, JP)
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