Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1997-01-10
1999-06-08
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562470, C07C 6364
Patent
active
059106069
ABSTRACT:
.alpha., .beta.-Unsaturated acids of the formula ##STR1## wherein R.sup.1 signifies C.sub.1 -C.sub.5 -alkyl and Ar signifies an aryl group which is optionally substituted by one or more substituents selected from the group consisting of halogen, phenyl, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, perfluorinated C.sub.1 -C.sub.5 -alkyl or perfluorinated C.sub.1 -C.sub.5 -alkoxy can be obtained from new or known compounds of the formula ##STR2## Compounds I can be converted by asymmetric hydrogenation into corresponding optically active saturated acids.
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Foricher Joseph
Schmid Rudolf
Hoffmann-La Roche Inc.
Johnston George W.
Kass Alan P.
Killos Paul J.
Rocha-Tramaloni Patricia S.
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