Studies on Derivatives of Aromatic Hydroxycarboxylic Acids as Antioxidant. I.

The Preparation of Galloyl Glycerol Derivatives and Its Antioxidant Activity

Abstract

1-Palmitoyl-3- (3', 4', 5'-trimethoxybenaoyl) glycerol (IV), 1-palmitoyl-3-galloyl glycerol (VII) and 1-galloyl glycerol (X) were prepared according to the method shown in Scheme-1, 2 and 3. The structures were confirmed by means of IR, NMR and chemical analysis. The antioxidation effect of these compounds for the soybean oil has been evaluated by the A.O.M. and the Shaal Oven Tests. The effect of 1-galloyl glycerol was found to be much larger than that of propyl gallate.