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Issue 35, 2012
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Isolation and molecular structures of novel organotellurium(IV) halides, oxyhalide and mixed halide

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Abstract

The formation of chiral (R)-[2-(4-ethyl-2-oxazolinyl)phenyl]tellurium(IV) trihalides (trichloride (5), tribromide (6) and triiodide (7)) and (R)-[2-(4-ethyl-2-oxazolinyl)phenyl]tellurium(II) bromide (8) is described. The molecular structure of the first chiral organotellurium(IV) triiodide (7) is discussed. The most interesting feature of the structure of 5 is the observation of the shortest intramolecular Te⋯N distance for any organotellurium(IV) trichloride. Compounds 5 and 6 do not undergo electrophilic addition reaction with olefins. Attempted addition reaction of 6 with olefin in methanol leads to the isolation of the rare partially hydrolysed tellurium(IV) halide, methyl-2-(dibromooxotellurium)benzoate (9). Novel stable mixed halide 12 was isolated from the bromination of 11. DFT calculations indicate that both the isomers 12a and 12b have similar stability.

Graphical abstract: Isolation and molecular structures of novel organotellurium(iv) halides, oxyhalide and mixed halide

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Publication details

The article was received on 21 Mar 2012, accepted on 15 Jun 2012 and first published on 18 Jun 2012


Article type: Paper
DOI: 10.1039/C2DT30645J
Citation: Dalton Trans., 2012,41, 10707-10714
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    Isolation and molecular structures of novel organotellurium(IV) halides, oxyhalide and mixed halide

    P. Rakesh, H. B. Singh and R. J. Butcher, Dalton Trans., 2012, 41, 10707
    DOI: 10.1039/C2DT30645J

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