Patent · US Expired

Preparation of benzophenones

US4982005A · kind A · utility

1Cited by

1References

13Claims

0Family size

Assignee

BASF SE

Inventors

Peter Neumann · Wiesloch, DE
Ulrich Eichenauer · Frankfurt, DE

Key dates

Filing date	Aug 23, 1989
Grant date	Jan 1, 1991
Priority date	—
Expiry date	Aug 23, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/84
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Benzophenones are prepared by condensing benzoic acids and aromatics of the benzene series by means of boron trifluoride in nitrobenzene as reaction medium.

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