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US 5,470,989 AGranted
Process for the production of mixtures of stereoisomers of 8,12-oxido-13,14,15,16-tetranorlabdane
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorThomas Gerke
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Abstract
Stereoisomer mixtures of 8,12-oxido-13,14,15,16-tetranorlabdane are obtained in yields of at least 95% by dehydrating cyclization of stereoisomer mixtures of 8,12-dihydroxy-13,14,15,16-tetranorlabdane in the presence of acid-loaded aluminum oxide.
Claims19
A process for the production of stereoisomer mixtures of 8,12-oxido-13, 14,15,16-tetranorlabdane by cyclizing dehydration of stereoisomer mixtures of 8,12-dihydroxy-13,14,15,16-tetranorlabdane, wherein acid-loaded aluminum oxide is used for the cyclization.
Dependencies are inferred from the claim text.