B-Substituted Carboranyl Thio- and Selenophosphites. Synthesis and Chemical Properties

Abstract The first examples of B-substituted carboranyl thio- and selenoesters of trivalent phosphorus acids were synthesized. On the basis of these samples, a series of new corresponding pentavalent phosphorus acids derivatives, potentialy bioactive compounds, was obtained. S- and Se-carborane-9-yl-diethyl-thiophosphites (I) were obtained by the interaction of diethylchlorphosphites with 9-mercapto- or 9-selenocarboranes in the presence of triethylamine.