Electrochemical synthesis of 2-aryl-hydroquinones

Details Electrochemical synthesis of 2-aryl-hydroquinones Electrochemical synthesis of 2-aryl-hydroquinones

1990-11-28

1992-03-24

Niebling, John

Chemistry: electrical and wave energy

Processes and products

C25B 302

Patent

active

050985310

ABSTRACT:
Preparation of 2-aryl-hydroquinones of formula (I) by oxidizing by an electrochemical route a compound of formula (II): ##STR1## wherein A represents an aryl group optionally substituted with groups compatible with the reaction conditions in an acidic aqueous reaction medium, at temperatures within the range of from 10.degree. to 100.degree. C., and with anodes of graphite or PbO.sub.2. The products are used in photography and in the field of liquid-crystal polymers.

REFERENCES:
patent: 2135368 (1938-11-01), Vagenius et al.
patent: 3873580 (1975-03-01), Rennie
patent: 3909376 (1975-09-01), Degner
patent: 4071429 (1978-01-01), Wagenknecht et al.
patent: 4159365 (1979-06-01), Payet
patent: 4689124 (1987-08-01), Noding

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