Synthesis of new carboranyl organosilicon derivatives – precursors for the preparation of hybrid organo-inorganic materials

Studies on the effect of polyhedral carboranes on the physicochemical properties of polycarboranosiloxanes

“…This, in turn, expands the working temperature range of such polymers and the possible application range of materials based on them. Various examples of the synthesis of organosilicon carborane derivatives, such as carboranocarbosilane dendrimers 35 and polyhedral carboranosilsesquioxanes 36,37 which seem to be ideal candidates as molecular fillers for carboranosiloxane composites, have been described in the literature.…”

The Use of the Thiol-Ene Addition Click Reaction in the Chemistry of Organosilicon Compounds: An Alternative or a Supplement to the Classical Hydrosilylation?

“…Shchegolikhina’s team is actively developing the synthesis of stereoregular organosiloxanes, a unique class of organosilicon compounds [ 93 , 94 , 95 ]. These compounds are synthesized from polyhedral metallosiloxanes and cannot be obtained by the classical organosilicon chemistry reactions.…”

“…The preparation of these materials often comes down to incorporation of special fillers into polymer matrices. An example of such a filler was synthesized in [ 93 ] by hydrothiolation of pentacyclo[9.5.1.13,9.15,15,17,13]octasiloxane with 1,3,5,7,9,11,13,15-octaethenyl-9-mercaptocarborane. As a result, a polycyclic silsesquioxane with eight carbonyl substituents in the structure was obtained (see Figure 23 ).…”

Synthesis of mono- and polyfunctional organosilicon derivatives of polyhedral carboranes for the preparation of hybrid polymer materials

“…This reaction is highly selective, and the hydrosilylation of ordinary double bonds results in the formation of 1-silyl-substituted derivatives. Recently, we developed an efficient approach for the preparation of boronated organosilicon derivatives 48,49 based on the application of allylcarboranes [50][51][52] as key compounds. Herein, we report the functionalization of the terminal double bonds in allylcarboranes with hydride-containing organosiloxane compounds via the Karstedt's catalyst hydrosilylation reaction.…”