HERSTELLUNG VON ALPHA-TOCOPHEROL

摘要

Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non- alpha -tocopherols comprising beta -, gamma -, and delta -tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase.