Abstract: A process to prepare alkansulphonamides of formula RSO.sub.2 NR.sup.1 R.sub.2 --wherein R is an alkyl group containing from 1 to 15 carbon atoms, or an alkyl group containing from 1 to 15 carbon atoms substituted by one or more chlorine or bromine atoms, and R.sup.1 and R.sup.2 are equal or different and may be hydrogen or an alkyl group containing from 1 to 15 carbon atoms--provides to treat an alkansulphonylhalide of formula RSO.sub.2 X--wherein X is chlorine, bromine or iodine--with a suitable quantity of a compound of formula NHR.sup.1 R.sup.2, using as solvent for said treatment an aliphatic nitrile.

Abstract: Compounds of formula: ##STR1## where R is alkyl having from 1 to 8 carbon atoms, alkenyl having from 3 to 8 carbon atoms or cyclohexyl;R.sub.1 is alkyl having from 1 to 8 carbon atoms, alkenyl having from 3 to 8 carbon atoms or cyclohexyl; andR and R.sub.1 together can form a --(CH.sub.2)--.sub.n group wherein n is an integer from 4 to 6. These compounds can be used as phytotoxicity antidotes for thiolcarbamate and/or acetanilide herbicides for use on corn cultivations.

Abstract: Substituted thiocarbamates are produced by continuously feeding together a secondary amine and sulphur in stoichiometric proportions and in a suitable solvent into a reaction column subjected to pressure by carbon monoxide. A continuous circulation of the reaction solution is maintained in the column, and the effluent is subjected to alkylation, the substituted carbamate being derived therefrom continuously.