Construction of Siloxane Structures with P-Tolyl Substituents at the Silicon Atom

Abstract In this work, general approaches for preparing p-tolylsilanes as promising precursors for the synthesis of functionalized organosilicon compounds are discussed. Various synthetic techniques, including new and specially developed ones, were used to obtained p-tolylsiloxanes of different structures. Our findings resulted in advanced methods over the previously reported procedures, since they do not imply the use of expensive metal-containing catalysts. All the products were obtained and isolated in gram amounts (up to 225 g) in high yields (63–90%) and were characterized by NMR, ESI-HRMS and X-Ray data.