作者:S. V. Basenko、A. A. Maylyan
DOI:10.1007/s11172-016-1409-9
日期:2016.4
A method for the synthesis of earlier practically unknown hexa(organylsilsesquioxanes) (RSiO1,5)6 have been developed based on the reaction of organyltrichlorosilanes RSiCl3 (R = Et, Vin) with DMSO. The reaction proceeded in several steps. The initial stage of the reaction gave poorly available 1,3,5-trichloro-1,3,5-triorganylcyclosiloxanes in 40—80% yield, as well as organyl(chloro)oligohomosilsesquioxanes, which further are converted to the corresponding organyloligosilsesquioxanes. Based on the monitoring of the reaction mixture by GC-MS, a scheme for the formation of the intermediate silsesquioxane structures have been suggested.
基于有机三氯硅烷RSiCl3 (R = Et, Vin) 与DMSO 的反应,开发了一种合成早期实际未知的六(有机基倍半硅氧烷) (RSiO1,5)6 的方法。反应分几个步骤进行。反应的初始阶段以40-80%的收率得到了很难获得的1,3,5-三氯-1,3,5-三有机基环硅氧烷,以及有机基(氯)低聚高倍半硅氧烷,其进一步转化为相应的有机低聚倍半硅氧烷。基于 GC-MS 对反应混合物的监测,提出了中间体倍半硅氧烷结构的形成方案。