Silylcarbonylation of vinylsilanes catalyzed by iridium(I) siloxide complexes

被引：32

作者：

Kownacki, I ^{[1
]}

Marciniec, B ^{[1
]}

Szubert, K ^{[1
]}

Kubicki, M ^{[1
]}

机构：

[1] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 25期

关键词：

D O I：

10.1021/om050478h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The iridium siloxide complexes [{Ir(mu-OSiMe3)(cod)}(2)] (I) and [Ir(cod)(PCy3OSiMe3)] (II) were used as catalysts in the silylcarbonylation of CH2=CHSiMe3. While complex I effectively catalyzed the highly stereoselective formation of (E)-1-(dimethylphenylsiloxy)-1-(dimethylphenylsilyl)-3-(trimethylsilyl)-1-propene (1a, Me3SiCH2CH=C(OSiMe2Ph)SiMe2Ph; yield 82%), complex II led the reaction to stereoselective synthesis of (Z)-1-(dimethylphenylsiloxy)-3-(trimethylsilyl)-1-propene (2a, Me3SiCH2CH=CHOSiMe2Ph; yield 95%). The former product was used for synthesis of the acylsilane (Me3SiCH2CH2C(O)SiMe2Ph) (4a; yield 92%), a wellknown reagent in organic synthesis. Under a CO atmosphere the cyclooctadiene ligand in both complexes was replaced by CO, and the X-ray structure of [Ir(CO)(2)(PCy3)OSiMe3] (IV) was resolved.

引用

页码：6179 / 6183

页数：5

共 65 条

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