Patent · US Expired

3,4-N,trisubstituted-4,5-dihydro-1H-pyrazole-1-carboxamides and their use as insecticides

US5338856A · kind A · utility

3Cited by
8References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 1992
Grant dateAug 16, 1994
Priority date—
Expiry dateAug 17, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D417/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

3,4,N-Trisubstituted-4,5-dihydro-1H-pyrazole-1-carboxamide compounds wherein the substituent in the 4-position is a 5-membered heterocyclic ring moiety containing one ring oxygen or sulfur atom and one or two ring nitrogen atoms and the substituents in the 3-position and the N-position are optionally substituted phenyl moieties, such as 4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(2-trifluorom ethyl-5-thiazolyl)-1H-pyrazole-1-carboxamide were prepared from appropriate 3,4-disubstituted-4,5-dihydro-1H-pyrazole compounds, such as 4,5-dihydro-3-(4-fluorophenyl)-4-(2-trifluoromethyl-5-thiazolyl)-1H-pyrazo le and phenyl isocyanates and isothiocyanates, such as 4-(trifluoromethyl)phenyl isocyanate. The compounds are insecticidal.

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