Sulphonanilides of formula ##STR1## and salts thereof, wherein R.sup.1 represents alkyl or certain other groups; R represents alkylene or alkenylene; A represents --COR.sup.12 or a carbonyl derivative or addition compound thereof, where R.sup.12 represents hydrogen, alkyl or certain other groups; and R.sup.2 -R.sup.6 represent hydrogen, alkyl, halogen or certain other groups; are pesticides and plant growth regulants, especially herbicides and fungicides.
Sulphonanilides of formula ##STR1## and salts thereof, wherein R.sup.1 represents alkyl or certain other groups; R represents alkylene or alkenylene; A represents --COOH, --COO alkyl, --CSSH, CN or certain related groups; or R-A represents a group of formula ##STR2## where R.sup.14 represents hydrogen, alkyl or aryl, B represents oxygen or ##STR3## R.sup.15 represents hydrogen or alkyl, and n represents 0, 1 or 2; and R.sup.2 -R.sup.6 represent hydrogen; alkyl, halogen or certain other groups, are pesticides and plant growth regulants, especially herbicides and fungicides.