Preparation of 2-(hydroxyphenoxy)-carboxylates

US4489207A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Becker · Bad Dürkheim, DE
• Heinz-Gunter Oeser · Dirmstein, DE
• Rolf-Dieter Acker · Leimen, DE

Key dates

• Filing date: Dec 16, 1982
• Grant date: Dec 18, 1984
• Expiry date: Dec 16, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C69/712
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2-(Hydroxyphenoxy)-carboxylates are prepared by a process wherein a dihydroxybenzene (A) is reacted with a 2-halo-fatty acid ester (B) of an alcohol, phenol or oxime of no more than 10 carbon atoms, in a molar ratio of A:B.gtoreq.1.5, in the presence of calcium hydroxide in dimethylsulfoxide, at from 0.degree. to 100.degree. C.