Process for the preparation of carbazole

Details Process for the preparation of carbazole Process for the preparation of carbazole

1997-08-15

1999-01-05

Ambrose, Michael G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548446, C07D20986

Patent

active

058565167

ABSTRACT:
Carbazole can be prepared by dehydrogenation of compounds of the formula ##STR1## or by aminating dehydrogenation of compounds of the formula ##STR2## at 300.degree. to 600.degree. C. in the presence of hydrogen over an iridium catalyst or an iridium-containing catalyst.

REFERENCES:
patent: 2921942 (1960-01-01), Grotta
patent: 3041349 (1962-06-01), Bearse et al.
patent: 3085095 (1963-04-01), Nevitt et al.
patent: 4628106 (1986-12-01), Schweikert et al.

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