Patent · US Expired

Process for producing optically active hydroxyalkylphosphonates

US5532402A · kind A · utility

1Cited by

1References

4Claims

0Family size

Assignee

TAKASAGO INTERNATIONAL CORPORATION · JP

Inventors

Ryoji Noyori · Ebeye, US
Masato Kitamura · Nagoya, JP
Makoto Tokunaga · Nishitokyo, JP

Key dates

Filing date	Mar 13, 1995
Grant date	Jul 2, 1996
Priority date	—
Expiry date	Mar 13, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/4006
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed herein is a process for producing an optically active hydroxyalkylphosphonate represented by the formula (4), which comprises asymmetrically hydrogenating an oxoalkylphosphonate represented by the formula (1) using, as a catalyst, a ruthenium-optically active phosphine complex represented by the formula (2). ##STR1##

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.