Patent · US Expired

Preparation of 4-dialkoxymethylpyrazoles

US5464508A · kind A · utility

3Cited by

4References

3Claims

0Family size

Assignee

BASF SE

Inventors

Dieter Hermeling · Haßloch, DE
Hartmann Koenig · Schifferstadt, DE
Norbert Goetz

Key dates

Filing date	Jul 27, 1993
Grant date	Nov 7, 1995
Priority date	—
Expiry date	Jul 27, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25B3/23
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing 4-dialkoxymethylpyrazoles of the formula I ##STR1## where R.sup.1 is n-alkyl, PA0 R.sup.2 is a hydrocarbon radical, PA0 R.sup.3 and R.sup.4 are each hydrogen, a hydrocarbon radical, cyano, halogen or alkoxycarbonyl, entails electrochemical oxidation of a 4-methylpyrazole of the formula II ##STR2## in the presence of an alkanol R.sup.1 --OH.

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