THERMAL DECOMPOSITION OF VINYL- AND ALLYLSILANE PLATINUM(II) COMPLEXES AND PLATINUM(II) CATALYSED SYNTHESIS OF (E),(E)-1,4-DIPHENYL-1,3-BUTADIENE

被引：0

作者：

Mebe, Paul P. ^{[1
]}

Fitch, John W. ^{[2
]}

Munyai, Mark ^{[3
]}

机构：

[1] Univ Venda, Sch Math & Nat Sci, Dept Chem, Limpopo, South Africa

[2] SW Texas State Univ, Dept Chem, San Marcos, TX 78666 USA

[3] Univ Zimbabwe, Dept Chem, Harare, Zimbabwe

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA | 2008年 / 22卷 / 03期

关键词：

Thermal analysis; Vinyl- and allylsilane platinum(II) pi-complexes; Platinum(II) catalysed synthesis; (E),(E)-1,4-diphenyl-1,3-butadiene;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thermal stabilities of Pt(II) complexes: K[PtC(3)(CH(2)=CHSiMe(3))], K[PtCl(3)(CH(2)-CHCH(2)SiMe(3))], K[(acac)PtCl(CH(2)=CHSiMe(3))] and [PtCl(CH(2)=CHCH(2)SiMe(3))](2), were examined. All complexes were found to be stable at room temperature but they decomposed without melting above about 90 degrees C. The allylsilane complex decomposed above about 125 degrees C. All complexes liberated chlorotrimethylsilane on decomposition, showing the facile cleavage of the C-Si bond by nucleophilic attack on the silicon by the chloride ion. (E),(E)-1,4-diphenyl-1,3-butadiene was stercoselectively synthesised in good yield from (E)-beta-styrylsilane in the presence of Zeise's salt.

引用

页码：445 / 448

页数：4

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