Process for the preparation of amino-nitrophenols

Details Process for the preparation of amino-nitrophenols Process for the preparation of amino-nitrophenols

1977-03-30

1978-09-19

Thomas, James O.

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

Organic compounds

Oxygen containing

260575, C07C 7928, C07C 9134

Patent

active

041156528

ABSTRACT:
A process for the preparation of an amino-nitro-phenol by partial reduction of a polynitrophenol by contacting the polynitrophenol with an aqueous ammonia solution and a sulfide ion, the ammonia being present in an amount of 1 to 8 mols ammonia per mol of polynitrophenol and the sulfide being present in an amount of 2.5 to 6 mols sulfide ion per mol polynitrophenol, the process being conducted at a temperature of from room temperature to 100.degree. C.

REFERENCES:
patent: 2464194 (1949-03-01), Zimmerman
Organic Synthesis, vol. 25, pp. 5-7 (1945).

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