TRANSITION-METAL-CATALYZED SILYLENE EXPULSION FROM, AND OR REARRANGEMENT OF, OLIGOSILANES

被引：69

作者：

PANNELL, KH

BRUN, MC

SHARMA, H

JONES, K

SHARMA, S

机构：

[1] Department of Chemistry, University of Texas, El Paso

来源：

ORGANOMETALLICS | 1994年 / 13卷 / 04期

关键词：

D O I：

10.1021/om00016a010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Photochemical treatment of HSiMe2SiMe2R (R = Me) with a catalytic amount of (eta5-C5H5)Fe(CO)2-SiMe3, (1) led to the high-yield formation of Me2Si, trapped efficiently with HSi(SiMe3)3. The use of (eta5-C5H5)Fe(CO)(PPh3)SiMe3 (2) as catalyst in a thermal reaction does not produce silylene but causes isomerization of the disilane (R = Ph). Photochemical treatment of HSiMe2SiMe2SiMe2SiMe3 with a catalytic amount of 1 initially produced HSi(SiMe3)3 with further transformation to HSiMe2Si(SiMe3)3 via silylene insertion. However, thermal catalysis using 2 yielded only HSi-(SiMe3)3. Both thermal and photochemical catalytic processes proceed via equilibrating Fe silyl silylene intermediates.

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页码：1075 / 1077

页数：3

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