N-benzoyl-N'-2,4-difluoro-3,5-dihalophenylureas, their preparati

Details N-benzoyl-N'-2,4-difluoro-3,5-dihalophenylureas, their preparati N-benzoyl-N'-2,4-difluoro-3,5-dihalophenylureas, their preparati

1988-09-14

1990-03-20

Robinson, Ellis P.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

514269, 514594, A01N 2500

Patent

active

049100181

ABSTRACT:
Novel substituted N-benzoyl-N'-2,4-difluoro-3,5-dihalophenylureas of formula I ##STR1## wherein R is hydrogen or fluorine; R.sub.1 is hydrogen, fluorine, chlorine or methoxy; R.sub.2 is fluorine, chlorine or methoxy; R.sub.3 is bromine and R.sub.4 is chlorine or bromine; or R.sub.3 is chlorine and R.sub.4 is bromine, processes and intermediates for their preparation, their use in pest control, and pesticides that contain a compound of formula I as active ingredient, are disclosed. The preferred field of application is the control of pests on animals and plants.

REFERENCES:
patent: 4307098 (1981-12-01), Fox et al.
patent: 4310548 (1982-01-01), Ehrenfreund
patent: 4404402 (1983-09-01), Ladner et al.
patent: 4457943 (1984-07-01), Becher et al.
patent: 4713396 (1987-12-01), Ikura et al.
Morrison and Boyd, p. 820-Organic Chemistry.

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