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Issue 26, 2014
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Dehydrogenation of hydrocarbons with metal-carbon multiple bonds and trapping of a titanium(II) intermediate

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Abstract

Reacting (PNP)Ti[double bond, length as m-dash]CHtBu(CH2tBu) with 2,2′-bipyridine (bipy) in cyclohexane or heptane results in dehydrogenation, cleanly producing cyclohexene and 1-heptene, respectively, and a TiII intermediate that is trapped by bipy to produce [(PNP)TiIII(CH2tBu)(bipy˙)] (1). This titanium(II) intermediate reduces the bipy ligand upon coordination to form a TiIII center, where the unpaired electron is antiferromagnetically coupled to the electron of the reduced [bipy˙] π-radical moiety, giving an overall diamagnetic species. Complex 1 has been characterized by NMR and UV-vis spectroscopies as well as single crystal X-ray diffraction studies.

Graphical abstract: Dehydrogenation of hydrocarbons with metal-carbon multiple bonds and trapping of a titanium(ii) intermediate

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Publication details

The article was received on 07 Apr 2014, accepted on 02 May 2014 and first published on 02 May 2014


Article type: Communication
DOI: 10.1039/C4DT01037J
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Dalton Trans., 2014,43, 9834-9837

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    Dehydrogenation of hydrocarbons with metal-carbon multiple bonds and trapping of a titanium(II) intermediate

    A. K. Hickey, M. G. Crestani, A. R. Fout, X. Gao, C. Chen and D. J. Mindiola, Dalton Trans., 2014, 43, 9834
    DOI: 10.1039/C4DT01037J

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