Method for producing aminocarbazoles

Details Method for producing aminocarbazoles Method for producing aminocarbazoles

2005-11-15

2005-11-15

Richter, Johann (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06965037

ABSTRACT:
Disclosed is a method for producing an aminocarbazole by catalytically reducing a nitrocarbazole, wherein as a catalyst is used an active nickel-based catalyst prepared by contacting a nickel-based catalyst with an alkali and an iron compound under a hydrogen gas or inert gas atmosphere in an inert solvent, and according to the method of the present invention, decrease in reaction speed, decrease in yield of a product or the like depending upon the lot of the starting nitrocarbazoles can be prevented, and aminocarbazoles can be produced in a good yield constantly.

REFERENCES:
patent: 58140070 (1983-08-01), None
patent: 60163863 (1985-08-01), None
patent: 0331708 (1991-05-01), None
patent: 07133261 (1995-05-01), None

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