Heterocyclen aus α-nitroolefinen. XII . 3-Acetyl-4,5-dihydro-5-(methylenamino)furane und 3-acylpyrrole aus α-nitroolefinen und β-diketonen |
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| Authors: | Friedrich Boberg,Karl-Heinz Garburg,Karl-Joachim G rlich,Eberhard Pipereit,Elke Redelfs,Maria Ruhr |
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| Affiliation: | Friedrich Boberg,Karl-Heinz Garburg,Karl-Joachim Görlich,Eberhard Pipereit,Elke Redelfs,Maria Ruhr |
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| Abstract: | From α-nitroolefines 1 and β-diketones 2 3-acetyl4,5-dihydro-5-(methy1eneamino)furans 5 are prepared. Furans 5 react in acid medium to yield 1-unsubstituted 3-acylpyrroles 6 , catalytic hydrogenation yields 1-substituted 3-acylpyrroles 9 . The 1H-nmr and 13C-nmr investigations prove the constitutions. |
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