Arylamine processes

Details Arylamine processes Arylamine processes

1997-01-30

1998-03-03

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564433, 564435, 564405, C07C20910

Patent

active

057236690

ABSTRACT:
A process preparation of N,N-bis(3,4-dimethylphenyl)-4-biphenylamine which comprises the reaction of N,N-bis(3,4-dimethylphenyl)amine and an iodobiphenyl in the presence of a ligand copper catalyst, and wherein the ligand is selected from the group consisting of monodentate tertiary amines and bidentate tertiary amines, and which reaction is accomplished at a temperature of from about 120.degree. C. to about 150.degree. C.

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patent: 4299983 (1981-11-01), Martin et al.
patent: 4485260 (1984-11-01), Szabo et al.
patent: 4764625 (1988-08-01), Turner et al.
patent: 4801517 (1989-01-01), Frechet et al.
patent: 5495049 (1996-02-01), Nukada et al.

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