Process for preparing polyphenols

Details Process for preparing polyphenols Process for preparing polyphenols

1977-02-03

1978-09-05

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260389, 2603459R, 568805, 260613R, C07C 4100

Patent

active

041120035

ABSTRACT:
Polyphenols of the general formula: ##STR1## wherein R represents a readily cleavable ether group and R' represents a hydrogen atom or a lower alkoxycarbonyl, such as the methoxycarbonyl or ethoxycarbonyl group, and of phloroglucinol, are made by heating a compound of the general formula: ##STR2## wherein R and R' have the same significance given above, with an alkali metal alcoholate and, if desired, converting the resulting compound of formula I into pholoroglucinol by ether-cleavage and removal of any ester group denoted by R' which may be present in accordance with methods known per se.

REFERENCES:
patent: 2632025 (1953-03-01), Grob
patent: 2704771 (1955-03-01), Smith
patent: 3904695 (1975-09-01), Hendrickx et al.

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