1,2,3-THIADIAZOLE-5-CARBOXYLIC ACID AMIDE DERIVATIVES,PROCESS FOR THE PREPARATION THEREOF AND COMPOSITIONS HAVING HERBICIDAL GROWTHREGULATING,DEFOLIATING AND FUNGICIDAL ACTION CONTAINING THE SAME

摘要

1,2,3-Thiadiazole-5-carboxylic acid amide derivatives of the formula IMAGE wherein R1, R2 and R3 have the meaning indicated in the specification. Preferably, R1 is methyl and R2 is acetyl, chloroacetyl, propionyl, valeryl, cinnamoyl, cyclohexylcarbonyl, dichlorophenoxyacetyl, benzoyl, halobenzoyl, dichlorobenzoyl or methylbenzoyl, and R3 is benzyl, halobenzyl, cyclohexyl, methyl-cyclohexyl or cyclohexylmethyl. The compounds have herbicidal, growth regulating, defoliating and fungicidal activity, although not all of these activities will be present in each of the compounds. The compounds are in addition highly selective against agriculturally valuable plants such as various grains, cotton, soybeans and plantation cultures.