Abstract The reactions of 2, 3-dihydrothiazolo [2, 3-b] benzothiazolium bromide 1 (A−[DOUBLE BOND] Br−) with certain nucleophilic reagents have been performed for the purpose of ascertaining the reaction pathways and identifying the group that is displaced from the central carbon atom of the dithiocarbamate system. The nature of complex salt-like intermediates formed initially from 1 (A−[DOUBLE BOND] Br−) has been studied and ...