RUTHENIUM-DIAMINE COMPLEX AND METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUND
申请人:Touge Taichiro
公开号:US20140051871A1
公开(公告)日:2014-02-20
Provided is a ruthenium complex that is represented by general formula (1*) and is useful as an asymmetric reduction catalyst.
(In the formula, * is an asymmetric carbon atom; R
1
is an arenesulfonyl group, and the like; R
2
and R
3
are a phenyl group, and the like; R
10
through R
14
are selected from a hydrogen atom, C
1-10
alkyl group, and the like, but R
10
through R
14
are not simultaneously hydrogen atoms; X is a halogen atom and the like; j and k are each either 0 or 1; and j+k is 0 or 2.)
The present disclosure relates to a method for preparing a metal catalyst comprising at least one ligand that is coordinated to the metal through at least one phosphorous (P) atom and at least one nitrogen (N) atom, the method comprising reacting a metal pre-cursor complex with an acid ad salt of an aminophosphine, diaminophosphine, aminodiphosphine or diaminodiphosphine, in the presence of a base.
METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUND, AND NOVEL METAL-DIAMINE COMPLEX
申请人:TAKASAGO INTERNATIONAL CORPORATION
公开号:US20160347678A1
公开(公告)日:2016-12-01
The present invention pertains to a method for producing an optically active compound which includes a step for reducing an imino group of an imine compound or a step for reducing an unsaturated bond of a heterocyclic compound, while in the presence of hydrogen gas as a hydrogen donor and one or more types of complexes selected from a group consisting of a complex represented by general formula (1), a complex represented by general formula (2), a complex represented by general formula (3), and a complex represented by general formula (4) (the general formulas (1)-(4) are as stipulated by claim
1
).
NOVEL DIAMINE COMPOUND AND METAL COMPLEXES, AND METHOD FOR PRODUCING OPTICALLY ACTIVE COMPOUNDS
申请人:TAKASAGO INTERNATIONAL CORPORATION
公开号:US20150094468A1
公开(公告)日:2015-04-02
The present invention relates to a novel diamine compound represented by the general formula (1), a ruthenium-diamine complex, an iridium-diamine complex, and a rhodium-diamine complex having the diamine compound as a ligand. Furthermore, the present invention relates to methods for selectively producing optically active compounds by using any of these complexes as a catalyst.
wherein R
1
, R
2
, R
3
, X, Y, and Z are as defined in claim
1.
The present invention provides a method for producing a compound represented by general formula (1) (wherein R
1
, R
2
, R
3
, R
10
-R
14
, A
1
-A
3
, n
1
and n
2
are as defined in the description), which is characterized by reacting a compound represented by general formula (2) (wherein R
10
-R
14
, A
1
-A
3
, n
1
, n
2
and B are as defined in the description) with a diamine compound represented by general formula (3) (wherein R
1
-R
3
are as defined in the description). The present invention is a method for producing a diamine compound, which is useful for the formation of a ruthenium-diamine complex, under mild conditions, said method being able to be put in industrial practice.