Preparation of phloroglucinol or its monomethyl ether

Details Preparation of phloroglucinol or its monomethyl ether Preparation of phloroglucinol or its monomethyl ether

1973-12-12

1976-05-25

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260629, C07C 4320, C07C 3702

Patent

active

039593886

ABSTRACT:
Phloroglucinol or its monomethyl ether is prepared at high yield, without producing by-product pollutants, by reacting a phenol that contains one or more leaving groups, e.g. a halogen atom, with alkali metal hydroxide in the initial absence of water in an inert organic liquid medium, e.g. pseudocumene, which forms an azeotrope with water formed by the reaction; distilling off reaction water as azeotrope; and acidifying the resulting alkali metal salt.

REFERENCES:
patent: 3778481 (1973-12-01), Biller et al.

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