Method for the preparation of decabromodiphenyl ether

US4849547A · kind A · utility

Assignee

• BROMINE COMPOUNDS LTD. · IL

Inventors

• Hyman Stollar · Beer Sheva, IL
• Khaim Khariton · Beer Sheva, IL
• Mark Grinberg · Beer Sheva, IL
• Eva Ellmann · Beer Sheva, IL

Key dates

• Filing date: Oct 13, 1987
• Grant date: Jul 18, 1989
• Expiry date: Oct 13, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of decabromodiphenyl ether by the reaction of diphenyl ether or of a partially brominated derivative thereof, in a mixture of halogenated organic solvents is described. The process of the invention provides a product having improved thermal stability. The process can be carried out in a quasi-steady state manner, thereby producing a product with constant quality.