Process for production of optically active...

Details Process for production of optically active... Process for production of optically active...

2007-09-03

2011-12-13

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C562S015000

Reexamination Certificate

active

08076503

ABSTRACT:
The present invention is a process for producing optically active aminophosphinylbutanoic acids represented by the formula (2),comprising asymmetrically hydrogenating a compound represented by the formula (1)in the presence of a ruthenium-optically active phosphine complex, a process for the production thereof, and a compound useful in a herbicide such as L-AHPB that can be produced with good efficiency and high asymmetric yield.

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