Synthesis of functionalised dithiocarbamates via N-(1-benzotriazolylalkyl)dithiocarbamates

Reactions of 1-(1-hydroxyalkyl)benzotriazoles 19a-d with thiazolidine-2-thione 13, 1,3- thiazinane-2-thione 25, and alkyl N-alkyldithiocarbamates 29a-c give intermediate N-(1- (benzotriazol-1-yl)alkyl) dithiocarbamates 20a-d, 26a-c, and 30a-e respectively, which gave N- (1-sulfanylalkyl) dithiocarbamates 23a-l, 27a-c and 31a-e or N-(1-(dialkylphosphono)alkyl) dithiocarbamates 24a-e, 28a,b and 32a-d on treatment with thiols or trialkyl phosphates, respectively, in the presence of zinc bromide.