4-ethyl-3-(substituted phenyl)-1-(3-trifluoromethylphenyl)-2-pyr

Details 4-ethyl-3-(substituted phenyl)-1-(3-trifluoromethylphenyl)-2-pyr 4-ethyl-3-(substituted phenyl)-1-(3-trifluoromethylphenyl)-2-pyr

1990-03-14

1992-07-21

Morris, Patricia L.

Chemistry: fertilizers

Processes and products

Forms or conditioning

548543, A01N 4336, C07D20726

Patent

active

051319470

ABSTRACT:
4-Ethyl-3-(phenyl)-1-(3-trifluoromethylphenyl)-2-pyrrolidinones and corresponding compounds bearing a p-substituent on the 1-position phenyl group and/or a substituent on the 3-position phenyl group exhibit selective herbicidal activities against various weeds which cause problems in rice or upland fields, even at extremely low application rates. They can be prepared by reductive dehalogenation of a corresponding .alpha.-haloethyl substituted pyrrolidinone or reductive cyclization of a corresponding N-2-butenyl-N-(substituted phenyl)-haloacetyl-3-trifluoromethylaniline.

REFERENCES:
patent: 4087270 (1978-05-01), Schneider et al.
patent: 4132713 (1979-01-01), Broadhurst
patent: 4210589 (1980-07-01), Teach
patent: 4443616 (1984-04-01), Hofer
patent: 4960457 (1990-10-01), Woolard

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