Process for preparation of 3,3'- or 3,4'-diaminodiphenylmethane

Details Process for preparation of 3,3'- or 3,4'-diaminodiphenylmethane Process for preparation of 3,3'- or 3,4'-diaminodiphenylmethane

1983-05-02

1985-09-10

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

564329, 564335, 564412, C07C 8750

Patent

active

045408181

ABSTRACT:
Preparation of 3,3'- or 3,4'-diaminodiphenylmethane by catalytically reducing and dechlorinating, in the presence of a reduction catalyst, a dinitrobenzophenone compound having the formula ##STR1## wherein X is chlorine and attached to a position 4 or 6 on the benzene ring, and Y is hydrogen or chlorine with the proviso that when Y is hydrogen, the nitro group is attached to a position 3' or 4', and when Y is chlorine, Y is attached to a position 4' and the nitro group is attached to a position 3'.

REFERENCES:
patent: 3213139 (1965-10-01), Chase et al.
patent: 3541151 (1970-11-01), Coombs et al.
patent: 4085141 (1978-04-01), Wedemeyer et al.
Montagne, "Berichte", vol. 48, pp. 1027-1037, (1904).
Wagner et al., "Synthetic Organic Chemistry", p. 5 (1963).

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