Preparation of n,n'-di-2-naphthyl-p-phenylenediamine

Details Preparation of n,n'-di-2-naphthyl-p-phenylenediamine Preparation of n,n'-di-2-naphthyl-p-phenylenediamine

C - Chemistry, Metallurgy

07

C

260/596

C07C 85/24 (1980.01)

Patent

CA 1047051

PREPARATION OF DIPHENYL-P-PHENYLENEDIAMINE ABSTRACT OF THE DISCLOSURE An improved method for the reaction of .beta.-naphthol with p-phenylenediamine to produce N,N'-di-2-naphthyl-p-phenylene- diamine at lower temperatures and with decreased formation of undesirable by-products is accomplished by reacting said meter- ials in the presence of boric anhydride or boric acid. -1-

237184

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