Patent · US Active

Process for preparing N-substituted 1H-pyrazole-5-carbonylchloride compounds

US8921567B2 · kind B2 · utility

1Cited by

1References

17Claims

0Family size

Assignee

BASF SE

Inventors

Karsten Körber · Eppelheim, DE
Prashant Deshmukh · Mannheim, DE
Florian Kaiser · Mannheim, DE
Michael Rack · Eppelheim, DE
Timo Frassetto · Mannheim, DE
Gemma Veitch · Basel, CH
Markus Kordes · Frankenthal (Pfalz), DE

Key dates

Filing date	Aug 10, 2012
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Aug 10, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D401/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing an N-substituted 1H-pyrazole-5-carbonylchloride compound of the formula (I)in which R1 is hydrogen, halogen, cyano, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, C1-C6-fluoroalkoxy, C1-C4-fluoroalkoxy-C1-C4-alkyl, phenyl and the like; each R2 is independently selected from halogen, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, phenyl and the like; r is 0, 1, 2, 3 or 4;comprising the steps of

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