Process for producing arylamine

Details Process for producing arylamine Process for producing arylamine

2007-09-25

2007-09-25

Davis, Brian (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

10527064

ABSTRACT:
A process for producing an arylamine is provided which is characterized by reacting an aromatic halogen compound with an aromatic amine in the presence of an organic salt selected from specific pyridinium salts, imidazolium salts and quaternary onium salts, a copper catalyst, and a base. Thus, the reaction of even an aromatic halogen compound substituted by an electron-donating group proceeds efficiently, and an inexpensive chlorinated aromatic compound or brominated aromatic compound is usable, and an arylamine, in particular a triarylamine or diarylamine, having a high purity can be produced at low cost.

REFERENCES:
patent: 4404400 (1983-09-01), Heise et al.
patent: 6043370 (2000-03-01), Kubo et al.
patent: 57-40445 (1982-03-01), None
patent: 62-283953 (1987-12-01), None
Database CAPLUS on STN, Acc. No. 2000:612055, Suzuka et al., JP 2000239235 (Sep. 5, 2000) (abstract).

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