Process for the preparation of 2,2-bis-(aminophenyl)-propane

Details Process for the preparation of 2,2-bis-(aminophenyl)-propane Process for the preparation of 2,2-bis-(aminophenyl)-propane

1991-10-08

1993-02-09

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

C07C20936

Patent

active

051854678

ABSTRACT:
2,2-Bis-(aminophenyl)-propane having a content of the 4,4'-isomers of at least 70% can be prepared by nitrating 2,2-diphenyl-propane to give 2,2-bis-(nitrophenyl)-propane and reducing the latter in a subsequent step to give 2,2-bis-(aminophenyl)-propane.

REFERENCES:
patent: 5037994 (1991-08-01), Mossman et al.
Journal of the American Chemical Society, Bd. 32, Mar. 1930, pp. 1122-1127.
Kervennal et al, Chemical Abstracts, vol. 102 (1985) 79426z.
Kervennal et al, Chemical Abstracts, vol. 104 (1986) 34839m.

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