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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 38, Number 3
JKCSEZ 38(3)
June 20, 1994 

Studies on the Oxidative Addition Reactions of 1-Bromosilatranes to SnBr2

1-브로모실라트란의 SnBr2 에 대한 산화성 첨가반응 연구
Myong Woon Kim, Dong Seon Uh, Ho Cheol Shin, Jinkwon Kim, Youngkyu Do

김명운, 어동선, 신호철, 김진권, 도영규
산화성 첨가반응을 이용하여 실라트란(분자내 Si-N고리횡단 상호작용을 갖는 5-배위의 규소화합물)의 규소원자와 주족원소간에 Si-M 결합작용이 있는 새로운 이종다핵 화합물을 합성하려고 시도하였다. 1-브로모실라트란(1a)과 SnBr2를 반응시켜 노란색(2a)과 흰색(2b)의 고체 혼합물을 얻었고 용해도 차에 의해 각각을 분리하여 1H-NMR, 29Si-NMR, 119Sn-NMR, Mass스펙트럼으로 규명한 결과 노란색 화합물만이 Si-Sn결합을 갖는 것으로 판명되었다. SnBr2를 1-브로모-3,7,10-트리메틸실라트란(1b)과도 반응시켜 Si-Sn 결합을 갖는 화합물, N[CH2CH(CH3)O]3SiSnBr3(CH3OH)2(3)을 분리하여 여러가지 방법으로 확인하였다.

The oxidative addition reaction has been employed to synthesize heteropolynuclear compounds containing Si-M bonding interaction between the silicon atom of silatrane, pentacoordinate silicon derivative with transannular Si-N dative bond, and the main group element. The reaction of SnBr2 with 1-bromosilatrane(1a) in acetonitrile gives the mixture of yellow(2a) and white(2b) solids which were isolated and charaterized by 1H-NMR, 29Si-NMR, 119Sn-NMR and Mass spectroscopy. The yellow compound was characterized as 1-tribromotinsilatrane which had Si-Sn bonding interaction. The reaction of SnBr2 with 1-bromo-3,7,10-trimethylsilatrane(1b) in methanol gives the Sn(Ⅳ) complex, N[CH2CH(CH3)O]3SiSnBr3(CH3OH)2(3), which was characterized by various means.

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