Cross-metathesis of vinylsilanes with allyl alkyl ethers catalyzed by ruthenium-carbene complexes

被引：27

作者：

Kujawa-Welten, M ^{[1
]}

Pietraszuk, C ^{[1
]}

Marciniec, B ^{[1
]}

机构：

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

来源：

ORGANOMETALLICS | 2002年 / 21卷 / 05期

关键词：

D O I：

10.1021/om0107035

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The cross-metathesis of vinyltrialkoxy- and vinyltrisiloxysilanes as well as divinyltetra-ethoxydisiloxane with various allyl alkyl ethers catalyzed by Cl-2(PCy3)(2)Ru(=CHPh) (I) is presented. The reaction is accompanied by self-metathesis of allyl alkyl ethers. The catalytic examination presented in this paper has allowed us to develop optimum conditions for selective synthesis of 1-silyl-3-alkoxy-propenes (R'O)(3)SiCH=CHOR (where R = Et, n-Bu, Cy, Ph, PhCH2, Gly, Me3Si, R' = Me, Et, SiMe3) with high preference of the E-isomers (E/Z > 7:1). This allowed the selective isolation of the E- isomer. A stoichiometric study of I with substrates has been carried out. The results are discussed on the basis of a metallacarbene mechanism.

引用

页码：840 / 845

页数：6

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