Dicationic Tellurium Analogues of the Classic N‐Heterocyclic Carbene
- 16 September 2010
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 16 (41), 12454-12461
- https://doi.org/10.1002/chem.201001447
Abstract
The synthesis and comprehensive characterization of the first dicationic tellurium analogues of N-heterocyclic carbenes (NHCs) has been reported, in both the +2 and +4 oxidation states. For the +2 oxidation state, a base-stabilized form of TeCl2 is used as the starting material. The dications are isolated by means of halide metathesis and the solid-state structures confirm the previously calculated diimine bonding arrangement. For TeIV, a diamine is used in a high-yielding dehydrohalogen coupling reaction from TeCl4. The dicationic NHC analogue is isolated in a base-stabilized form through halide abstraction and subsequent coordination by pyridine.Keywords
This publication has 54 references indexed in Scilit:
- Boryllithium: Isolation, Characterization, and Reactivity as a Boryl AnionScience, 2006
- 2,3-Dihydroimidazol-2-ylidenes and their main group element chemistryCoordination Chemistry Reviews, 2005
- The reactivity of diazabutadienes toward low oxidation state Group 13 iodides and the synthesis of a new gallium(i) carbene analogueJ. Chem. Soc., Dalton Trans., 2002
- Synthesis and Structure of a Monomeric Aluminum(I) Compound [{HC(CMeNAr)2}Al] (Ar=2,6–iPr2C6H3): A Stable Aluminum Analogue of a CarbeneAngewandte Chemie, 2000
- Synthesis and Structure of a Monomeric Aluminum(I) Compound [{HC(CMeNAr)2}Al] (Ar=2,6–iPr2C6H3): A Stable Aluminum Analogue of a CarbeneAngewandte Chemie-International Edition, 2000
- The Development of L2X2RuCHR Olefin Metathesis Catalysts: An Organometallic Success StoryAccounts of Chemical Research, 2000
- Stable CarbenesChemical Reviews, 1999
- A Carbene Analogue with Low-Valent Gallium as a Heteroatom in a quasi-Aromatic Imidazolate AnionJournal of the American Chemical Society, 1999
- A stable crystalline carbeneJournal of the American Chemical Society, 1991
- Analogous .alpha.,.alpha.'-bis-carbenoid, triply bonded species: synthesis of a stable .lambda.3-phosphino carbene-.lambda.5-phosphaacetyleneJournal of the American Chemical Society, 1988