Patent · US Expired

Method for the production of trioxime derivatives

US6906223B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

BASF SE

Inventors

Andreas Kramer · Zürich, CH
Matthias Kiefer · Ludwigshafen, DE
Michael Henningsen · Bischofswerda, DE
Wolfgang Siegel · Schifferstadt, DE
Jochen Schröder · Lambsheim, DE

Key dates

Filing date	Jul 4, 2001
Grant date	Jun 14, 2005
Priority date	—
Expiry date	May 19, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C249/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R1 and R2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R3 and R4 are identical or different and each is alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl, by the following reaction steps in water without isolation of the intermediates:

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