Process for 1,4-phenylenediamine

Details Process for 1,4-phenylenediamine Process for 1,4-phenylenediamine

1982-04-19

1983-08-23

Doll, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564403, 564437, C07C 8506

Patent

active

044005377

ABSTRACT:
A process for the preparation of 1,4-phenylenediamine from 1,4-dihydroxybenzene at a temperature within the range of from about 300.degree. C. to 450.degree. C. and a pressure of from atmospheric to 3000 psig in the presence of an aminating agent, an inert hydrocarbon and an acidic alumina catalyst. p-Aminophenol can be aminated to 1,4-phenylenediamine with the same process.

REFERENCES:
patent: 3801642 (1974-04-01), Worrel
patent: 3860650 (1975-01-01), Becker et al.
patent: 3960962 (1976-06-01), Shubkin

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