Patent · US Expired

Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with certain metal-containing catalysts

US4918237A · kind A · utility

11Cited by

4References

10Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

David Richard Corbin · New Castle, US
Enio Kumpinsky · Wilmington, US

Key dates

Filing date	Mar 13, 1989
Grant date	Apr 17, 1990
Priority date	—
Expiry date	Mar 13, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/46
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

1,4-Bis(4-phenoxybenzoyl)benzene is made in a homogeneous or heterogeneous system by a reaction of diphenyl ether with 1,4-benzenedicarbonyl chloride at 220.degree.-258.degree. C. in the presence of certain iron, gallium, and indium compounds in catalytic amounts. The mole ratio of diphenyl ether to 1,4-dicarbonyl chloride is 5:1 to 25:1 and the mole ratio of 1,4-benzenedicarbonyl chloride to the catalyst is 1000:1 to 10:1.

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