PROCESS FOR PRODUCING DIELS-ALDER ADDUCTS OF STEROL 5,7-DIENES USING UNSATURATED FATTY ACID CATALYST

摘要

An improved process and composition are disclosed for isolation of steroids containing a 5,7-diene functionality from a sterol mixture that comprises formation of a Diels-Alder reaction product of the ster-5,7-dienol in the presence of at least a catalytic amount of an ethylenically unsaturated C12-C24 fatty carboxylic acid.