Process for bis(4-aminophenyl)hexafluoropropane

Details Process for bis(4-aminophenyl)hexafluoropropane Process for bis(4-aminophenyl)hexafluoropropane

1987-10-07

1991-04-30

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564330, 564414, C07C21150, C07C20950

Patent

active

050119974

ABSTRACT:
This invention is an improved process for preparing 2,2-bis(4-aminophenyl)hexafluoropropane which comprises subjecting 2,2-bis(4-aminocarbonylphenyl)hexafluoropropane to the Hofmann reaction and then treating that reaction product under reducing conditions to produce the desired amine in high yield.

REFERENCES:
patent: 902150 (1908-10-01), Heidenreich
patent: 1850526 (1932-03-01), Zitscher
patent: 2334201 (1943-11-01), Kamm et al.
patent: 2822396 (1958-02-01), Dent
patent: 3897498 (1975-07-01), Zengel et al.
patent: 3904691 (1975-09-01), Carnmalm et al.
patent: 4082749 (1978-04-01), Quadbeck-Seeger et al.
patent: 4198348 (1980-04-01), Bertini et al.
Houben-Weyl, "Stickstoff Verbindungen", Methoden der Organischen Chemie, vol. 10, Part 3, pp. 375-377 (1965).

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