Organic and Macromolecular Chemistry
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Organic and Macromolecular Chemistry |
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| 141 | Henze, O.; Lentz, D.; Schäfer, A.; Franke, P.; Schlüter,
A.D. |
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| Keywords | Bipyridines, cross-coupling reactions, ruthenium, N ligands, shape persistance, supramolecular chemistry | |
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| Abstract | Reaction of the known cycle 1a containing two bipyridine units in opposing sides with two equivalents of Ru(bipy)2Cl2 furnishes the twofold exocyclic complexed cycle 8a in 55%. Synthesis of the shape-persistant macrocycle 1c via Hagihara/Sonogashira cross-coupling chemistry of suitably functionalized building blocks is reported. This cycle was also converted into a Ru-complex (8c). X-ray analysis of single crystals of 1b and 1c shows a layered structure with "channels" filled with solvent molecules and parts of the flexible chains, with which the cycle is decorated for solubility reasons. |