Simple synthesis of CpNi(NHC)Cl complexes (Cp = cyclopentadienyl;: NHC=N-heterocyclic carbene)

被引：149

作者：

Kelly, RA ^{[1
]}

Scott, NM ^{[1
]}

Díez-González, S ^{[1
]}

Stevens, ED ^{[1
]}

Nolan, SP ^{[1
]}

机构：

[1] Univ New Orleans, Dept Chem, New Orleans, LA 70148 USA

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 14期

关键词：

D O I：

10.1021/om0501879

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of saturated and unsaturated imidazolium salts with nickelocene in refluxing THF results in the formation of NHC complexes of general formula CpNi(NHC)Cl (NHC = SIMes (2), IPr (3), SIPr (4)). This protonation Of CP2Ni was also tested using phosphonium salts, and the reaction of nickelocene with triethylphosphonium chloride leads to CpNi(PEt3)Cl (5). All compounds were characterized by NMR and X-ray crystallography. The catalytic activity of the NHC compounds was tested in aryl amination (Buchwald-Hartwig reaction) and in aryl halide dehalogenation reactions.

引用

页码：3442 / 3447

页数：6

共 63 条

[61] Essays on organometallic chemistry.: Part 11.: N-heterocyclic carbenes:: state of the art in transition-metal-complex synthesis
Weskamp, T
Böhm, VPW
Herrmann, WA
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2000, 600 (1-2) : 12 - 22
[62] Nickel-catalyzed amination of aryl chlorides
Wolfe, JP
Buchwald, SL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (26) : 6054 - 6058
[63] Palladium-catalyzed amination of aryl iodides
Wolfe, JP
Buchwald, SL
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1996, 61 (03) : 1133 - 1135

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