Use of Stille-type cross-coupling as a route to oligopyridylimines |
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Authors: | Yohan DM Champouret |
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Institution: | Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK |
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Abstract: | The new tin reagents, 2-(n-Bu3Sn)-6-{C(R)OCH2CH2O}-C5H3N, (R=H a, Me b), have been employed in Stille-type cross-coupling reactions with a range of oligopyridylbromides generating, following a facile deprotection step, a series of formyl- and acetyl-functionalised oligopyridines. Condensation reactions with 2,6-diisopropylaniline has allowed access to families of novel sterically bulky multidentate N,N,N,N (tetradentate), N,N,N,N,N (pentadentate), N,N,N,N,N,N (sexidentate) and N,N,N,N,N,N,N (heptadentate) nitrogen donor ligands. This work represents a straightforward and rapid synthetic route for the preparation of oligopyridylimines, which are expected to act as useful components for the self-assembly of polymetallic complexes. |
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Keywords: | Stille-type Cross-coupling Oligopyridylimines Nitrogen donor |
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