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有机化学
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有机化学 ›› 1988, Vol. 8 ›› Issue (1): 37-41. 上一篇    下一篇

研究论文

烷基芳基环聚硅烷[RArSi)n,n=5,6]的合成及其波谱性质

刘维泰;陈珊妹   

  1. 中国科学院兰州化学物理研究所
  • 发布日期:1988-02-25

Synthesis and spectral properties of alkylarylcyclopolysilanes

LIU WEITAI;CHEN SHANMEI   

  • Published:1988-02-25

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370

研究了在六苯基二硅烷或三甲基三苯基二硅烷存在时, 烷基芳基二氯硅烷与过量锂在四氢呋喃中的偶联反应. 得到(PhMeSi)6, (P-MeC6H4SiMe)6,(O-MeC6H4SiMe)5, (PhCH2SiMe)6, (PhEtSi)5和(PhSiCH2CH=CH2)6. 均用NMR, IR,MS, UV和MS鉴定, 其中后五个化合物为新化合物.

关键词: 光谱分析, 氯硅烷, 锂, 聚硅烷, 偶合反应

The coupling reaction of alkylaryldichlorosilane in THF with an excess of lithium in the presence of hexaphenyldisilane or trimethyltriphenyldisilane gave the major products, (PhMeSi)6, (p-MeC6H4SiMe)6, (o-MeC6H4SiMe)5, (PhCH2SiMe)6, (PhEtSi)5 and (PhSiCH2CH:CH2)6, which, were identified and characterized with NMR, IR, MS and UV spectroscopy. HPLC identification of the product mixtures of (PhMeSi)n revealed that various products with different ring size and geometric isomerization of the substituents might also exist depending on the mole ratio of starting materials and presence or absence of the catalyst.

Key words: SPECTROGRAPHIC ANALYSIS, CHLOROSILANE, LITHIUM, POLYSILANE, COUPLING REACTION

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