Abstract:Ein rationelles Darstellungsverfahren fur die trans-fi-Pyridazinylpropenale 2a, 2b, gekennzeichnet durch Witrig-Reaktion von Formylpyridazinen mit Formylmethylentriphenylphosphoran, wird in Vorschlag gebracht.
Syntheses and Reactions of Pyridazine Derivatives, XIV Syntheses of Vinylogous PyridazinecarboxaldehydesThe trans-fJ-pyridazinylpropenals h , Z b are prepared in high yield by reacting formylpyridazines with (formylmethy1ene)triphenylphosphorane. **) Meinem verehrten Lehrer, Herrn Prof. Dr. F. Viebock, m… Show more
Reactions of 3‐pyridazinecarbaldehyde and 4‐pyridazinecarbaldehyde with various active methylene carbanions were studied. The products obtained in Knoevenagel reactions, Wittig‐Horner‐Emmons reactions, and Hantzsch‐type reactions are presented.
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