Base modified catalysis in the styrenation of diphenylamine

Details Base modified catalysis in the styrenation of diphenylamine Base modified catalysis in the styrenation of diphenylamine

C - Chemistry, Metallurgy

07

C

260/600.5

C07C 209/68 (2006.01)

Patent

CA 1106409

BASE MODIFIED CATALYSIS IN THE STYRENATION OF DIPHENYLAMINE Abstract of the Disclosure Diphenylamine is reacted with styrene in the presence of a base modified acid clay catalyst to improve yields of the p-styrenated diphenylamine (DPA), particularly the distyrenated DPA. Fuller's Earth exemplifies the clay, while KOH exemplifies the base. The highly p-styrenated diphenylamine is an active antioxidant with low volatility.

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