Claims
- 1. A method of enantioselectively hydrogenating an olefin, a ketone, or an imine, which comprises carrying out the enantioselective hydrogenation using as a catalyst an alkali metal sulfonate-substituted binaphthylphosphine transition metal complex represented by formula (I)
- [M(X).sub.n (Q)(SO.sub.3 A--BINAP)]Y (1)
- wherein M represents a transition metal atom; SO.sub.3 A--BINAP represents a tertiary phosphine represented by formula (II) ##STR6## in which A represents an alkali metal atom; X represents a chlorine atom, a bromine atom, or an iodine atom;
- when n is 1, M represents ruthenium, Q represents benzene or p-cymene, and Y represents a chlorine atom, a bromine atom, or an iodine atom;
- when n is 0 and M is iridium or rhodium, Q represents 1,5-cyclo-octadiene or norbornadiene, and Y represents ClO.sub.4, PF.sub.6 or BF.sub.4 ; and
- when n is 0 and M is palladium, Q represents .pi.-allyl, and Y represents ClO.sub.4, PF.sub.6, or BF.sub.4.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-331535 |
Nov 1991 |
JPX |
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Parent Case Info
This is a divisional of application Ser. No. 07/977,638 filed Nov. 17, 1992, now U.S. Pat. No. 5,274,146.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4954644 |
Savo et al. |
Sep 1990 |
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5012002 |
Kumobayanshi et al. |
Apr 1991 |
|
5187136 |
Klobucar et al. |
Feb 1993 |
|
Foreign Referenced Citations (3)
Number |
Date |
Country |
0245959 |
Nov 1987 |
EPX |
0272787 |
Jun 1988 |
EPX |
0372313 |
Jun 1990 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
977638 |
Nov 1992 |
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