Single step process for the preparation of p-aminophenol

Details Single step process for the preparation of p-aminophenol Single step process for the preparation of p-aminophenol

1999-02-24

2000-02-22

Killos, Paul J.

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

Organic compounds

Amino nitrogen containing

C07L20900

Patent

active

060282274

ABSTRACT:
The present invention provides a single step process for the preparation of p-aminophenol by contacting a mixture of nitrobenzene and water with hydrogen over a solid acid catalyst, terminating the reaction to obtain a reaction mixture containing the product, extracting the reaction mixture with an organic solvent, separating the aqueous layer containing the product, and then concentrating the aqueous layer by any conventional method to obtain the product.

REFERENCES:
patent: 3328465 (1967-06-01), Spiegler
patent: 3383416 (1968-05-01), Benner
patent: 3953509 (1976-04-01), Greco
patent: 4307249 (1981-12-01), Derrenbacker
patent: 4885389 (1989-12-01), Lee et al.
patent: 5545754 (1996-08-01), Klausener et al.

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