Herbicidal-N-(3-amino-2,4-dinitro-6-trifluoromethylphenyl)-pyrrolidones

US4087270A · kind A · utility

Assignee

• GAF Corporation · US

Inventors

• Louis Schneider · Landsham, DE
• David E. Graham · Fleet, GB

Key dates

• Filing date: Mar 3, 1977
• Grant date: May 2, 1978
• Expiry date: Mar 3, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D207/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides herbicidal-N-(3-amino 2,4-dinitro-6-trifluoromethylphenyl)-pyrrolidones having the formula: ##STR1## where X is oxygen or sulfur, and R, R.sub.1 and R.sub.2 are selected from among H or lower alkyl, of up to 4 carbon atoms. The compounds of this invention are prepared by reacting a 2,4-dihalo-3,5-dinitrobenzotrifluoride with an amine, followed by condensation of the amino intermediate with the alkali metal salt of a pyrrolidone. The N-(substituted-phenyl)-pyrrolidones described herein show good herbicidal activity, particularly pre-emergence activity against Japanese millet and crabgrass.