Manufacture of (all-rac)-alpha-Tocopherol

摘要

A process for the manufacture of (all-rac)- alpha -tocopherol by the catalyzed reaction of trimethylhydroquinone with isophytol or phytol is characterized by carrying out the reaction in the presence of hydrogen tris(oxalato)phosphate, or an adduct thereof with a solvent, as the catalyst in an organic solvent.The product of the process is the most active and industrially most important member of the vitamin E group.