Regioselective formation of β‐(E)‐ and α‐alkenylsilane moiety attached to silsesquioxane core via Pt‐ and Ru‐based hydrosilylation

Abstract

The first attempts to use ethynylsiloxysilsesquioxanes as reagents for hydrosilylation in the presence of Pt-and Ru-based catalysts are reported. The results obtained strongly depend on the catalytic system used. The catalysts are proved to promote regioselective introduction of β-(E)and α-fragments of the alkenylsilane group to the silsesquioxane core. The favourable features of these catalytic systems are their high selectivity and the requirement for relatively mild conditions. This methodology was also successfully applied to dihydro-substituted organosilicon compounds to obtain a new class of silsesquioxane-based compounds.

Electrifying synthesis of organosilicon compounds – from electrosynthesis to electrocatalysis

“…Therefore, a very important step is searching for an alternative to highly expensive oxidants, as well as catalysts based on platinum or rhodium. [124][125][126][127][128][129] Furthermore, in terms of the electrochemical system, the authors used readily available stainless steel electrodes. Similarly to Lin, 65 Zhang, 86 and He, 97 also Poisson and coworkers used an IKA® ElectraSyn 2.0, which ensures the reproducibility of the obtained results.…”