ANTIOXIDANT COMPOSITIONS CONTAINING ASCORBINIC ACID DERIVATIVES AS ACTIVE COMPONENT AND PROCESS FOR PRODUCING ASCORBINIC ACID DERIVATIVES

摘要

Ascorbic acid derivs. of formula (I) are new: R1 is an organic gp. with a molecular wt. of 58-400. - Pref. X1 = (a) 5-22C alkyl, (b) 1-10C alkyl substd. by 1-3 of alkoxycarbonyl, aryl, aroyloxy, 2,3,5-trimethyl-1,4-benzoquinoyl, 2,3-dimethoxy 5methyl-1,4-benzoquinoyl and 2-methyl-1,4 naphthoquinoyl, (c) 2-20C alkenyl opt. substd. by aryl, 3-pyridyl, thienyl or furyl, (d) aryl, (e) 1-9C acyl, or (f) aryloxy.