Substituted sulfonyldiamides, process for their preparation, and their use as herbicides and plant growth regulators

Abstract From the Canadian patent

The present invention relates to compounds of the formula (I) or salts thereof, <see Fig. 1>, where R1, R2 or H, are saturated or unsaturated (substituted) aliphatic radicals or (substituted) phenyl or R1 and R2, together with the N atom by which they are linked are a heterocyclic ring of the formula, <see Fig. 2> a indices independently of one another being an integer from 1 to 3, R3 is H, a saturated or unsaturated (substituted) aliphatic radical or a (substituted) phenyl benzyl or, phenethyl radical, or R2 and R3 together are an alkylene chain, R4 is H, a saturated or unsaturated aliphatic radical or alkoxy, and, R5 is a (substituted) pyrimidinyl triazinyl, triazolyl or, bicyclic, …