Über Dicyanmethylen-aminoindene,Indano-pyridazine und Indano-pyridine. Synthesen mit Nitrilen, 83. Mitt. |
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| Authors: | Hans Junek Manfred Klade Heinz Sterk |
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| Institution: | (1) Institut für Organische Chemie, Abteilung für Angewandte Organische Chemie, Karl-Franzens-Universität Graz, A-8010 Graz, Österreich |
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| Abstract: | Summary 1-Dicyanomethylene-3-indanone (1) shows a remarkable reactivity of the carbonyl- and the methylene-function towards nucleophiles. With anilines and phenylhydrazine, resp., the deep-red colored pentamethinecyanines2 and3 are formed, azocoupling leads to indano-pyridazines4. With diphenylformamidines anilinomethylene-indanones5 are obtained in a primary reaction, followed by ring closure and Dimroth-rearrangement to indano-pyridines6.13C- and15N-NMR-spectrocopy is used for confirmation of the structures.Herrn Prof. Dr. J. Schurz zum 65. Geburtstag gewidmet |
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| Keywords: | 1-Dicyanomethylene-3-indanone 1-Dicyanomethylene-3-phenylamino-2-indenes Indano-(2 1-c)pyridazines Phenylamino-indano-(2 1-c)pyridines |
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