Patent · US Expired

Preparation of o-acylphenols and p-acylphenols

US4508924A · kind A · utility

1Cited by

9References

9Claims

0Family size

Assignee

BASF SE

Inventors

Josef Mueller · Großkarlbach, DE
Walter-Wielant Wiersdorff · Mutterstadt, DE
Werner Kirschenlohr · Ludwigshafen, DE
Gerd Schwantje · Monsheim, DE

Key dates

Filing date	Nov 1, 1983
Grant date	Apr 2, 1985
Priority date	—
Expiry date	Nov 1, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/825
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

o-Acylphenols and p-acylphenols are prepared by reacting phenol with an acid halide and aluminum chloride, using a halobenzene as the solvent, at from 15.degree. to 55.degree. C. and then at from 55.degree. and 200.degree. C. The compounds obtainable by the process of the invention are valuable starting materials for the preparation of drugs, pesticides and dyes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.