Preparation of a diethynyl hypervalent silicon monomer by coordination-selective cleavage: structure and polymerization to give novel polycarbosilanes containing main-chain hexacoordinate silicon
Preparation of a diethynyl hypervalent silicon monomer by coordination-selective cleavage: structure and polymerization to give novel polycarbosilanes containing main-chain hexacoordinate silicon
复制标题
通过配位选择性裂解制备二乙炔基高价硅单体：结构和聚合得到含有主链六配位硅的新型聚碳硅烷
DOI：
10.1039/c39950000725
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
W. Douglas
中科院分区：
文献类型：
--
作者：
Karine Boyer;F. Carré;R. Corriu;W. Douglas
六配位单体R2 Si（CCH）2[R = 8-（二甲基氨基）萘基; X射线晶体结构显示两个氮都反式到乙炔基]，由R2 Si（CCSiMe 3）2通过在Bun 4 NF存在下三甲基甲硅烷基-乙炔键的配位选择性裂解形成，与二卤代芳烃进行钯催化的交叉偶联聚合，得到新型聚碳硅烷[R2 SiCCArCC]n（Ar = 1，4-亚苯基、4，4 ′-亚联苯基、9，10-亚蒽基）。
The hexacoordinate monomer R2Si(CCH)2[R = 8-(dimethylamino)naphthyl; the X-ray crystal structure showing both nitrogens trans to the ethynyl groups], formed from R2Si(CCSiMe3)2 by coordination-selective cleavage of the trimethylsilyl–acetylene bonds in the presence of Bun4NF, undergoes palladium-catalysed cross-coupling polymerization with dihaloarenes to afford novel polycarbosilanes [R2SiCCArCC]n(Ar = 1,4-pnenylene, 4,4′-biphenylene, 9,10-anthrylene) containing hexacoordinate silicon.