Title:
1,2-BIS(METHYL(1,1,3,3-TETRAMETHYLBUTYL)-PHOSPHINO)ETHANE, PROCESS FOR THE PREPARATION THEREOF, TRANSITION METAL COMPLEXES CONTAINING THE SAME AS THE LIGAND AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2001/046098
Kind Code:
A1
Abstract:
A novel bisphosphine compound represented by formula (1): (wherein t-C¿8?H¿17? represents 1,1,3,3-tetramethylbutyl), which has asymmetric centers at the phosphorus atoms and is useful as the ligand of asymmetric catalysts for asymmetric hydrogenation; a process for the preparation thereof; transition metal complexes containing the compound as the ligand; and processes for the asymmetric hydrogenation of unsaturated carboxylic acids and esters thereof by using the complexes as the asymmetric catalyst.
Inventors:
SUGIYA MASASHI (JP)
NOHIRA HIROYUKI (JP)
NOHIRA HIROYUKI (JP)
Application Number:
PCT/JP1999/007156
Publication Date:
June 28, 2001
Filing Date:
December 20, 1999
Export Citation:
Assignee:
NIPPON CHEMICAL IND (JP)
SUGIYA MASASHI (JP)
NOHIRA HIROYUKI (JP)
SUGIYA MASASHI (JP)
NOHIRA HIROYUKI (JP)
International Classes:
B01J31/24; C07B53/00; C07F9/50; (IPC1-7): C07C9/50; B01J31/24; C07B53/00; C07C231/12; C07C233/47
Foreign References:
| JPH1180179A | 1999-03-26 | |||
| US3518312A | 1970-06-30 |
Other References:
SUGIYA MASASHI ET AL.: "The Kolbe electrolytic synthesis of optically active bisphosphine oxides", CHEM. LETT., no. 6, 1998, pages 479 - 480, XP002924327
See also references of EP 1245551A4
See also references of EP 1245551A4
Attorney, Agent or Firm:
Soga, Michiteru (Kokusai Building 1-1, Marunouchi 3-chome Chiyoda-ku Tokyo, JP)
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