Patent ID: 6048988
Filing Date: 2000-04-11
Classification: C07D

Abstract:
A process for the production of .alpha.-tocopherol esters, derivatives or homologs thereof of the general formula ##STR7## comprising reacting the mono- or diesters of a hydroquinone of the general formula ##STR8## in which R.sub.1, R.sub.2 are C.sub.1 -C.sub.20 alkyl, branched or unbranched, saturated or unsaturated, andR.sub.3, R.sub.4, R.sub.5 are H, C.sub.1 -C.sub.3 alkyl, identical or different,with an allyl alcohol derivative of the general formula ##STR9## in which n represents a number from 0 to 5 and L represents a hydroxyl, halogen, acetoxy, methanesulfonyloxy, ethanesulfonyloxy, benzenesulfonyloxy or toluenesulfonyl group, or with an allyl alcohol of the general formula ##STR10## in which n represents the same numbers as above and L represents a hydroxyl, halogen or acetoxy group, in the presence of zinc halide and proton-liberating acid at a temperature of 25.degree. to 100.degree. C.