Preparation of 3-cyano-4-fluorophenol

Details Preparation of 3-cyano-4-fluorophenol Preparation of 3-cyano-4-fluorophenol

1986-01-14

1988-07-26

Sutto, Anton H. S.

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

Organic compounds

Nitriles

558423, C07C12152

Patent

active

047601604

ABSTRACT:
The invention provides a process for the preparation of 4-fluorophenols of formula ##STR1## wherein n is 0 to 3, each R independently represents a halogen atom or an alkyl, alkoxy, cyano or optionally substituted amino group and Z represents a hydrogen or halogen atom or a cyano group characterized by reacting a fluorohalocyclohexadienone of formula ##STR2## wherein X represents a halogen atom, with a compound of formula A-Z, wherein Z is as defined above and A represents a hydrogen or alkali metal atom, provided that when both A and Z are hydrogen, the reaction is carried out in the additional presence of a Group VIII metal hydrogenation catalyst, and 4-fluorophenols of formula I per se wherein Z is a CN group.

REFERENCES:
patent: 3259639 (1986-07-01), Taub
Buehler et al, "Survey of Organic Synthesis", (1974) p. 275.

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