Improved Synthesis of 4,4′-Disubstituted-2,2′-Bipyridines
- 1 January 1979
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 9 (6) , 497-504
- https://doi.org/10.1080/00397917908060953
Abstract
Ruthenium(II) tris(2,2′-bipyridine) complexes show interesting photochemical properties1. Complexes containing substituents in the 4-and 4′-position of the 2,2′-bipyridine ligand have recently been used in systems which are aimed at the conversion and storage of solar energy2,3. 2,2′-Bipyridine has a long history as a metal-chelating agent4. The use of 4,4′-disubstituted bipyridines as metal-chelating agents so far has been restricted probably because the reported syntheses of these compounds are rather laborious and the yields are low or moderate5–8.Keywords
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