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Zur reaktionsweise von triafulvenen mit azomethinyliden |
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| Authors: | Th Eicher V Schäfer |
| Institution: | Institut für Organische Chemie der Universität Würzburg Germany |
| Abstract: | The reaction of the azomethine ylides 2a–c with cyclopropenones 3 and of 2a with methylene cyclopropenes 7 leads via (3+3)-cycloaddition to pyridones-4 5 and 1,4 - dihydro - N - methyl - 4 - methylene - pyridines 8, respectively. The merocyanine systems 8 exhibit marked solvatochromic and thermochromic properties. |
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