The Dimerization of Thiophosgene and Trichlorothioacetyl Chloride S-Imides - Head-to-Head and/or Head-to-Tail?

It has been shown that certain N-aryltrichoromethanesulfenamides Cl3C−S−NHAr can be dehydrochlorinated to form red-colored thiocarbonyl S-imides CCl2=S=NAr which dimerize spontaneously. The dimers ...