An efficient synthetic approach to 4′,5,5″-triaryl-2,2′:6′,2″-terpyridines

Add time:08/27/2019    Source:sciencedirect.com

An efficient synthetic approach is proposed to construct 4′,5,5″-triaryl-2,2′:6′,2″-terpyridines using two methods of pyridine ring construction, that is, the Weiss method and the ‘1,2,4-triazine’ methodology. Due to the use of ‘1,2,4-triazine’ methodology in the last step, aza-analogues of terpyridines as well as cycloalkane-annulated terpyridines have been synthesized which are inaccessible by other reported methods. The presented approach involves the use of readily available reagents and simple procedures.

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