N-cyanoalkyl haloacetamides, preparation thereof, use thereof as herbicide antidotes and compositions comprising same.

摘要

A compound characterised in that it corresponds to the following general formula:
<CHEM>
wherein
R represents C1-C4 haloalkyl;
R1 represents hydrogen or C1-C4 alkyl; and
R2 represents C2-C8 cyanoalkyl, C5-C12 cyanoalkylcycloalkyl, C5-C12 cyanocycloalkyl, C3-C6 cyanoalkylalkoxy or cyanobenzyl;
provided that, when R2 represents cyanoalkyl, R represents dibromoalkyl; is disclosed.
<??>The above compounds may be prepared by reacting an appropriate nitrile amine or salt thereof with an appropriate halogenated acid chloride.
<??>The use of the above compounds reduces the injury to desired vegetation caused by herbicides, more particularly thiocarbamates and haloacetanilides.
<??>Compositions comprising such antidotes and such herbicides are also disclosed.