Process for the production of optically active threo-3-(3,4-dihy

Details Process for the production of optically active threo-3-(3,4-dihy Process for the production of optically active threo-3-(3,4-dihy

1980-07-18

1982-03-09

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

560 42, 562444, C07B 1900

Patent

active

043190405

ABSTRACT:
Improved process for the production of optical aCTIVE (D- or L-) threo-3-(3,4-dihydroxyphenyl)serine, which comprises subjecting racemic threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to optical resolution by using as a resolving reagent an optical active amino alcohol derivative, and then subjecting the resulting optical active (D- or L-) threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to hydrogenolysis.

REFERENCES:
patent: 3920728 (1975-11-01), Hegedus et al.

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