Process for the preparation of bis-(amino-phenyl)-disulphides

Details Process for the preparation of bis-(amino-phenyl)-disulphides Process for the preparation of bis-(amino-phenyl)-disulphides

1981-02-26

1983-03-01

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

C07C 9314

Patent

active

043755623

ABSTRACT:
Process for the preparation of a bis-(amino-phenyl)-disulphide of the formula ##STR1## in which R represents hydrogen or halogen,
which comprises contacting an amino-thiophenol of the formula ##STR2## or a salt thereof in which R has the abovementioned meaning
with sulphur or a sulphur-donating substance in an aqueous dispersion at a temperature of 10.degree. to 120.degree. C. and a pH value of 3 to 9.

REFERENCES:
patent: 1933217 (1933-10-01), Lantz

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