INTERFERENCE OF PHOSPHINO ENOLATO LIGANDS IN THE 1-ALKYNE-TO-VINYLIDENE REARRANGEMENT - SYNTHESES OF THE ISOMERIC ((MESITYLENE)RU[ETA(3)-CH=CHC(PPH(2))(ME)C(BU(T))=O])[PF6] AND ((MESITYLENE)RU[ETA(3)-C(=CH2)C(PPH(2))(ME)C(BU(T))=O])[PF6] RUTHENIUM(II) COMPLEXES

被引：10

作者：

CROCHET, P ^{[1
]}

DEMERSEMAN, B ^{[1
]}

机构：

[1] UNIV RENNES,CHIM COORDINAT ORGAN LAB,CNRS,URA 415,F-35042 RENNES,FRANCE

来源：

ORGANOMETALLICS | 1995年 / 14卷 / 05期

关键词：

D O I：

10.1021/om00005a017

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The (phosphino enolato)ruthenium(II) complex (eta(6)-mesitylene)[Ph(2)PC(Me)=C(Bu(t))O]RuCl, 1, reacts in methanol with ethyne or (trimethylsilyl) acetylene, and NH4PF6, to afford the isomeric complexes {(mesitylene)Ru[eta(3)-CH=CHC(PPh(2))(Me)C(Bu(t))=O]}[PF6], 2, and {-(mesitylene)Ru[mu(3)-C(=CH2)C(PPh(2))(Me)C(Bu(t))=O]}[PF6], 3, respectively. The formation of 2 and 3 consists formally of the coupling of the carbon enolate from the functional ligand with coordinated ethyne but at a distinct stage of the ethyne-to-vinylidene rearrangement. In ethanol at reflux, 3 undergo es transformation to {(mesitylene)(Ph(2)PF)Ru[eta(2)-C(CH3)=C-(Me)C(Bu(t))=O]}[PF6], 4.

引用

页码：2173 / 2176

页数：4

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