1,3,5-三(3,3,4,4,5,5,6,6,6-九氟己基)-1,3,5-三甲基环三硅氧烷的合成

Synthesis of 1,3,5-Tris( 3,3,4,4,5,5,6,6,6-nonafluorohexyl)-1,3,5-trimethylcyclotrisiloxane

标题化合物是一种合成共氟硅材料的重要单体。以全氟丁基乙烯和甲基二氯硅烷为原料,经硅氢加成反应合成了氟烃基甲基二氯硅烷,再经水解反应制得其水解产物,最后在CsOH催化下,经裂解反应制备了目标化合物。产物经~1HNMR、^(13)CNMR、^(19)FNMR及IR确认结构。

1,3,5-Tris（3,3,4,4,5,5,6,6,6-nonafluorohexyl）-1,3,5-trimethylcyclotrisiloxane is a very important monomer for the synthesis of fluorine silicon material.In this work,（perfluorobutyl） ethylene and dichloromethylsilane were taken as the raw material.After hydrosilylation reaction,fluorinealkyl dimethyl dichlorosilane was synthesized.Then after hydrolysis,hydrolysate was obtained and finally 1,3,5-tris（3,3,4,4,5,5,6,6,6-nonafluorohexyl）-1,3,5-trimethylcyclotrisiloxane formed after crack reaction under the catalyst of Cs OH.The structure was confirmed via ^1HNMR,^13CNMR,^19FNMR and IR.