The reactions of [Pd2Cl2(mu-PP)(2)] (PP equals dppm, dmpm) with Et(2)NC CNEt(2), in methylene chloride solution: X-ray crystal structures of [Pd2Cl2(mu-CH2)(mu-dppm)(2)] and hexakis(diethylamino)benzene, C-6(NEt(2))(6)

被引：15

作者：

Klopfenstein, SR ^{[1
]}

Kluwe, C ^{[1
]}

Kirschbaum, K ^{[1
]}

Davies, JA ^{[1
]}

机构：

[1] UNIV TOLEDO,DEPT CHEM,TOLEDO,OH 43606

来源：

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1996年 / 74卷 / 11期

关键词：

acetylene; palladium; cyclooligomerization; aminoacetylene; hexakis(diethylamino)benzene;

D O I：

10.1139/v96-260

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The binuclear palladium(I) complex, [Pd2Cl2(mu-dppm)(2)] (dppm = bis(diphenylphosphino)methane), has been shown to react with bis(diethylamino)acetylene, Et(2)NC=CNEt(2), in methylene chloride solution to yield two isolable products, the known methylene-bridged complex, [Pd2Cl2(mu-CH3(mu-dppm)(2)], and hexakis(diethylamino)benzene, C-6(NEt(2))(6), both of which have been characterized crystallographically. The source of the bridging methylene group in [Pd2Cl2(mu-CH2)(mu-dppm)(2)] has been shown to be the methylene chloride solvent. A mechanism that accounts for the formation of the two isolable products is proposed. The complex, [Pd2Cl2(mu-dmpm)(2)] (dmpm = bis(dimethylphosphino)methane), was similarly found to react with Et(2)NC=CNEt(2) in methylene chloride solution to yield [Pd2Cl2(mu-CH2)(mu-dmpm)(2)], which was identified spectroscopically.

引用

页码：2331 / 2339

页数：9

共 26 条

[1] TRANSFORMATION OF HETEROATOM-SUBSTITUTED ALKYNES INTO SUBSTITUTED VINYLIDENE LIGANDS ACCOMPANIED BY CO INSERTION [J].