Zur Reaktivität von C=N-Doppelbindungssystemen, XVI [1]. Eine Synthese von 2-Hydroxy-6-oxo-1.6-dihydro-pyridinen / The Reactivity of C=N Double Bond Systems, XVI [1]. Synthesis of 2-Hydroxy-6-oxo-1,6-dihydro-pyridines
Open Access
- 1 December 1978
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 33 (12) , 1550-1553
- https://doi.org/10.1515/znb-1978-1237
Abstract
The combined action of triethyl orthoformate and aniline upon Meldrum's acid or 5-aza-5-phenyl-1-oxaspiro[5,5]undecan-2,4-diones gives their anilinomethylene derivatives (2, 5), which react with methyleneactive nitriles in dimethylformamide to give substituted 2-hydroxy-6-oxo-1,6-dihydro-pyridines (7) in excellent yields.Keywords
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