Herbicidal sulphonylaminocarbonyltriazolinones of the formula ##STR1## in which R.sup.1 represents hydrogen, hydroxyl or amino, or represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aryl, alkoxy, alkenyloxy, alkylamino and dialkylamino, R.sup.2 represents hydrogen, hydroxyl, mercapto or amino, or represents an optionally substituted radical from the series comprising alkyl, cycloalkyl, cycloalkenyl, aralkyl, aryl, alkoxy, alkylamino and dialkylamino, and R.sup.3 represents an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl, and salts thereof. Intermediates of the formula ##STR2## in which A.sup.1 represents in each case optionally substituted alkyl, alkenyl, cycloalkyl, alkoxy or dialkylamino and A.sup.2 represents hydrogen, or represents in each case optionally substituted alkyl, cycloalkyl, aralkyl, aryl or alkoxy, provided that both A.sup.1 and A.sup.2 do not simultaneously represent alkyl, are also new.

The invention relates to new heterocyclically disubstituted sulphonylamino(thio)carbonyl compounds of the formula (I) ##STR1## in which Q represents oxygen or sulphur, R.sup.1 and R.sup.2 are identical or different and independently of one another represent a radical from the series comprising heterocyclyl, heterocyclylamino and heterocyclylimino, in each case optionally substituted and bonded via N, with the exception of optionally substituted pyrazolylamino in the meaning of R.sup.1, and salts of the compounds of the formula (I), furthermore to processes for their preparation, and to their use as herbicides.

Alkoxytriazolinones of the general formula (I), ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent in each case optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, (which can be used as intermediates for the preparation of herbicidal active compounds) are obtained in very good yields and in high purity by reacting iminothiocarbonic diester (II) with carbazinic esters (III) ##STR2## in which R.sup.3 and R.sup.4 in each case represent, for example, alkyl or aryl, at -20.degree. C. to +50.degree. C. (1st step) and subjecting the semicarbazide derivatives (IV) formed in this process with elimination of R.sup.3 -SH ##STR3## to a cyclizing condensation reaction and if appropriate in the presence of a base at 20.degree. C. to 100.degree. C. with elimination of R.sup.4 --OH, if appropriate after intermediate isolation (2nd step).

Triazolinone intermediates, for herbicidal sulphonylaminocarbonyltriazolines having substituents which are bonded via sulphur, of the formula ##STR1## in which n is 0, and

The invention relates to new sulphonylaminocarbonyltriazolinones of the formula (I) ##STR1## in which Q represents oxygen, sulphur or one of the following groups ##STR2## (in which the radicals R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meanings given in the description), as well as to salts of compounds of the formula (I), to processes and novel intermediates for the preparation of the novel compounds, and to their use as herbicides.