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Publication numberUST970006 I4
Publication typeGrant
Application numberUS 05/812,438
Publication dateMay 2, 1978
Filing dateJul 1, 1977
Priority dateJul 9, 1976
Also published asDE2730991A1
Publication number05812438, 812438, US T970006 I4, US T970006I4, US-I4-T970006, UST970006 I4, UST970006I4
InventorsJohn Brewster Rose
Original AssigneeImperial Chemical Industries Limited
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Manufacture of halophenols
US T970006 I4
Abstract
halophenols of formula ##STR1## where X = halogen, are made by condensation of a compound ##STR2## where Z is OH or halogen with a phenol in the presence of anhydrous HF as a catalyst. The compound ##STR3## where X = F, may be made in situ by the reaction of ##STR4## with an alkali metal nitrite in anhydrous HF.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4446078 *Jun 28, 1982May 1, 1984Rhone-Poulenc Specialites ChimiquesProcess for the preparation of α,α-difluoroalkyl-thiophenyl ketones
Classifications
U.S. Classification568/319, 568/322, 562/493, 568/333, 562/840
International ClassificationB01J27/00, C07C45/81, C07C49/825, C07C49/83, C07C45/00, C07C45/79, C07C67/00, C07B61/00, C07C45/46, C07C45/78
Cooperative ClassificationC07C45/78, C07C45/46, C07C45/81, C07C49/83, C07C45/79
European ClassificationC07C45/78, C07C45/81, C07C45/79, C07C45/46, C07C49/83