Patent · US Active

Method of producing benzophenoneimines

US7683214B2 · kind B2 · utility

1Cited by

4References

7Claims

0Family size

Assignee

BASF SE

Inventors

Thilo Hahn · Kirchheimbolanden, DE
Frank Haese · Bollingstedt, DE
Ulrich Kohler · Mannheim, DE
Ekkehard Schwab · Neustadt, DE
Johann-Peter Melder · Schifferstadt, DE
Jan Eberhardt · Mannheim, DE

Key dates

Filing date	Mar 1, 2007
Grant date	Mar 23, 2010
Priority date	—
Expiry date	Mar 1, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C249/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the preparation of benzophenonimine (BPI) of the general formula Iwhere R1 and R2 are C1- to C4-alkoxy, C1- to C2-alkylamine and C2- to C4-dialkylamine and m and n are integers from 0 to 5 and R1 and R2, independently of one another, may be identical or different, by reacting benzophenone (BP) of the general formula IIwhere R1, R2, m and n have the abovementioned meanings, in ammonia and in the presence of titanium dioxide, the titanium dioxide being present substantially in the anatase modification.

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