Process of producing anthraquinones in one step

Details Process of producing anthraquinones in one step Process of producing anthraquinones in one step

1990-03-29

1991-08-20

Ivy, C. Warren

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

Organic compounds

Polycyclo ring system containing anthracene configured ring...

C07C 5018

Patent

active

050415719

ABSTRACT:
A process for the preparation of anthraquinone compounds comprises reaction of phthalic anhydride with a benzene derivative in a reaction mixture containing HF and BF.sub.3 as catalyst at a first temperature up to about 30.degree. C. and, subsequently, at an elevated temperature.

REFERENCES:
patent: 2174118 (1939-09-01), Calcott et al.
patent: 4379092 (1983-04-01), Devic
patent: 4496760 (1985-01-01), Devic
patent: 4591460 (1986-05-01), Devic

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