A terminal and four-coordinate titanium alkylidene prepared by oxidatively induced alpha-hydrogen abstraction |
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| Authors: | Basuli Falguni Bailey Brad C Tomaszewski John Huffman John C Mindiola Daniel J |
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| Institution: | Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington 47405, USA. |
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| Abstract: | One-electron oxidation of the beta-diketiminate titanium(III) bis-neopentyl complex (Nacnac)Ti(CH2tBu)2 (Nacnac = Ar]NC(Me)CHC(Me)NAr], Ar = 2,6-(CHMe2)2C6H3) promotes alpha-abstraction to afford the rare and terminal four-coordinate neopentylidene (Nacnac)Ti=CHtBu(OTf), which was structurally characterized. Alkylidene (Nacnac)Ti=CHtBu(OTf) reacts cleanly with benzophenone and the imine functionality of the Nacnac ligand to afford the corresponding Wittig-type products. |
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