The reaction of various functionalized ary] and heteroaryl bromides with i-PrMgCl.LiCl produces highly reactive Grignardreagents complexed by LiCl, which react with tetramethylthiuramdisulfide [(Me 2 NCS 2 ) 2 ] leading tothe corresponding dithiocarbamates in excellent yields. Various transformations of the dithiocarbamates to thiols, thiol salts or thioethers have been demonstrated.