A New Mixed Amino-Amido N-Heterocyclic Carbene Based on Anthranilic Acid

被引：34

作者：

Makhloufi, Abdelaziz ^{[1
]}

Wahl, Michaela ^{[1
]}

Frank, Walter ^{[1
]}

Ganter, Christian ^{[1
]}

机构：

[1] Univ Dusseldorf, Inst Anorgan Chem & Strukturchem, D-40225 Dusseldorf, Germany

来源：

ORGANOMETALLICS | 2013年 / 32卷 / 03期

关键词：

TRANSITION-METAL-COMPLEXES; COORDINATION CHEMISTRY; REACTIVITY; ACTIVATION; BACKBONE; N; N'-DIAMIDOCARBENE; CATALYSIS; RELEVANT; STRATEGY; SYSTEM;

D O I：

10.1021/om301152n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of a new mixed amino-amido N-heterocyclic carbene (type A) starting from anthranilic acid is presented. A new straightforward synthetic approach to related diaminocarbenes of type B is also described. Both NHCs react with group 6 elements to form heteroureas and coordinate to L2CIM fragments (M = Rh, Ir; L-2 = COD, (CO)(2)). IR spectroscopic analysis of the carbonyl complexes reveals that the diamino-NHC is a better donor ligand (TEP: 2054 cm(-1)) compared to the amino-amido NHC (TEP: 2060 cm(-1)). In line with this behavior, a carbene dimerization to give the corresponding olefin is observed only for derivatives of type A. X-ray structure determinations are reported for two Rh complexes of ligand A and its cationic precursor.

引用

页码：854 / 861

页数：8

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