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

1975-12-12

1977-11-29

Curtis, Allen B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 8764

Patent

active

040605523

ABSTRACT:
An improved method for the reaction of .beta.-naphthol with p-phenylenediamine to produce N,N'-di-2-naphthyl-p-phenylenediamine at lower temperatures and with decreased formation of undesirable by-products is accomplished by reacting with said materials in the presence of boric anhydride or boric acid.

REFERENCES:
patent: 1885355 (1932-11-01), Jones

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