Li Shi-chan
2014
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Journal
Synthetic Materials Aging and Application
Abstract
Diphenol antioxidant,2,2'-methylenebis(6-nonyl-p-cresol),is a novel liquid diphenol antioxidant with high molecular weight,which was synthesized with crude material p-cresol.The target molecule was achieved by esterification,Fries rearrangement,Friedel-Crafts acylation,Clemmensen reduction and acid-mediated nucleophilic substitution reactions.All intermediate and final compounds were fully characterized by NMR and MS,and the total yield is more than 90% in about 4 steps.