Process for preparing of 3,3'-diamino diphenylsulfones

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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564422, 564423, C07C 8500, C07C 8511, C07C 8524

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active

044827423

ABSTRACT:
3,3'-diamino diphenylsulfones are prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a diphenylsulfone compound of the general formula ##STR1## in which X is a halogen atom and Y is hydrogen or a halogen atom.

REFERENCES:
patent: 2458214 (1949-01-01), Souders
patent: 2823235 (1958-02-01), Graham et al.
patent: 3472897 (1969-10-01), Pryor et al.
patent: 3637820 (1972-01-01), Dodman et al.
patent: 4206147 (1980-06-01), Daumas et al.
patent: 4206148 (1980-06-01), Biola et al.
patent: 4207261 (1980-06-01), Csikos

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