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US 4,072,715 AGranted
Optically active cyclohexane derivatives
AssigneeHoffmann-La Roche Inc.
InventorsWalter Boguth, Hans G. W. Leuenberger, Hans J. Mayer, Erich Widmer, Reinhard Zell
Life of this patent
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Abstract
A process for fermentatively hydrogenating and reducing ketoisophorone to produce optically active [4R,6R]-4-hydroxy-2,6,6-trimethyl-cyclohexanone useful as an intermediate in the production of optically active carotenoids and intermediates in the production of these carotenoids.
Claims2
An optically active compound of the formula ##STR19##
An optically active compound of the formula ##STR20##
Dependencies are inferred from the claim text.