Synthesis, spectral characterization and bioassay of 3,3′-(1,4-phenylene)-bis[2-alkoxycarbonyl-alkyl)-2-thio-benzoxa-phosphinines]

A new series of 3,3′-(1,4-phenylene)-bis[2-alkoxycarbonyl-alkyl)-2-thio-benzoxaphos-phinines] (3a-j) have been designed, synthesized and evaluated for antioxidant properties. 3f, 3g and 3j exhibited high antioxidant property