In these studies, various synthetic routes toward the mercaptoborane B12HuSH2~w ere investigated as was the chemistry of this anion. The most favorable synthesis involved nucleophilic attack of 7V-methylbenzothiazole-2-thione on B12H122f ollowed by basic hydrolysis. Other routes invariably resulted in considerable by-products, some of which were B12H10(SH)22™, B12HuOH2~, and polymeric boranes. Various oxidative reactions of B12HnSH2• were observed, and new products isolated include the mixed disulfides B!2HUSSR2" (R is an organic function) and the disulfide monoxide Bi2HnSOSB12Hn4".

Verschiedene Synthesewege für die Titelverbindung (II) werden aufgezeigt.