Diethers of m- or p-hydroxyphenol

US4973736A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Becker · Bad Dürkheim, DE
• Werner Hoffmann · Ludwigshafen, DE
• Heinz-Guenter Oeser · Dirmstein, DE
• Wolfgang Rohr · Mannheim, DE
• Juergen Varwig · Heidelberg, DE

Key dates

• Filing date: Aug 15, 1989
• Grant date: Nov 27, 1990
• Expiry date: Aug 15, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D241/44
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Diethers of m- or p-hydroxyphenol, as well as the monoethers, are prepared by reacting m- or p-tert.-butoxyphenol of the formula II ##STR1## with a halogen compound in the presence of a hydroxide, carbonate and/or bicarbonate of an alkali metal or alkaline earth metal and an organic solvent which is inert under the reaction conditions, at from 20.degree. C. to 150.degree. C., and, if desired, reacting the resulting diether with a dilute aqueous inorganic acid at from 30.degree. to 100.degree. C. to give the monoether. The end products which can be prepared by the process according to the invention are useful starting materials for the preparation of dyes, drugs and crop protection agents.