Preparation of 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes

US6365788B1 · kind B1 · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Robert E. Hefner, Jr. · Lake Jackson, US
• Katherine S. Clement · Lake Jackson, US
• Lance Black · Indianapolis, US
• Louis L. Walker · Clute, US

Key dates

• Filing date: Jul 26, 2000
• Grant date: Apr 2, 2002
• Expiry date: Jul 26, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C39/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to the preparation of substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-hydroxyaliphatics such as 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes by reacting substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-halogen substituted aliphatics such as 1,2-bis(4-hydroxyphenyl)-2-chloropropanes in the presence of a base and water.