SYNTHESIS AND PROPERTIES OF THIOCARBAMATES AND SELENOCARBAMATES

Conditions have been examined for making thiocarbamates and selenocarb amates by the reaction of primary amines with carbon monoxide and corr espondingly with sulfur (in the presence of selenium as catalyst) or w ith selenium. Schemes are proposed for the catalytic cycles, which inc lude the formation and transformation of polyselenides in the synthesi s of selenocarbamates, and also sulfur selenides and selenosulfides in the synthesis of thiocarbamic acids.