Preparation of phloroglucinol or its monomethyl ether

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260629, C07C 4320, C07C 3702

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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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