Under solvent-free conditions, various unsymmetrical benzoyldisulfides and symmetrical
novel biscarbonyldisulfides were easily prepared in good yields at room temperature
by the mixing of thiosulfonates with thiocarboxylic S-acids in the absence or presence of an amine.
benzoyldisulfides - thiocarboxylic S-acid - carbonyldisulfides - thiosulfonates - sulfenylation