Abstract

Organotin oxides, hydroxides, and alkoxides react with ammonium halides and ammonium thiocyanate in the presence of an inert solvent to give the corresponding organotin halides and isothiocyanates respectively in high yields. The reactivity of ammonium halides, NH 4X, has been found to be in the order of X  I > Br > Cl. The mechanism of the reaction of thiourea with organotin oxides has been discussed. It has been demonstrated that thiourea first rearranges to ammonium thiocyanate which then reacts with organotin oxides to yield the corresponding isothiocyanate.

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