P C U K Produits Chimiques Ugine Kuhlmann

Michel L Devif

Gerard E Boutemy

Jean-Paul Brun

Bernard S Gorny

The compounds of the formula: ##STR1## in which R.sub.1 represents a dichloromethyl or trichloromethyl group, X.sub.1 represents a chlorine or fluorine atom, X.sub.2 represents a chlorine or fluorine atom, X.sub.3 represents a hydrogen, chlorine or fluorine atom, R.sub.2 represents an amino group NH.sub.2 or a ##STR2## group, in which R.sub.3 represents a hydrogen atom or an alkyl, haloalkyl, alkenyl, haloalkenyl, arylalkyl, arylhaloalkyl, cycloalkyl, halocycloalkyl, alkoxyalkyl, haloalkoxyalkyl or aryl group, this latter being unsubstituted or substituted by one or two halogen atoms or by an alkyl, alkoxy, nitro or haloalkyl group are antidotes against herbicides.

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Chailly en Biere, France

Michel L Devif