| Sulfonamides of the formula I ##STR00001## where the substituents are as follows: R.sup.1 is hydrogen, alkyl, alkoxy, alkenyl or alkynyl; and R.sup.2, R.sup.3, R.sup.4, R.sup.5 are hydrogen, halogen, alkyl, alkoxy or halomethyl; R.sup.2 and R.sup.3 together may also form a phenyl, c |
