Three-component condensation of diethyl 2,4,6-trioxoheptanedicarboxylate with salicylaldehyde and ammonium acetate as a new method for the synthesis of the [1]benzopyrano[4,3-<Emphasis Type="Italic">b</Emphasis>]pyridine system |
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| Authors: | V A Mamedov L P Sysoeva A T Gubaidullin A I Zamaletdinova I A Litvinov |
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| Institution: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center, Russian Academy of Sciences, 8 ul. Akad. Arbuzova, 420088 Kazan, Russian Federation |
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| Abstract: | Three-component condensation of diethyl 2,4,6-trioxoheptanedicarboxylate with salicylaldehyde and ammonium acetate in EtOH
affords 2,5-diethoxycarbonyl-5-hydroxy-4-oxo-4,4a, 5,10b-tetrahydro-1H-1]benzopyrano4,3-b]pyridine.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1494–1496, June, 2005. |
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| Keywords: | three-component condensation salicylaldehyde salicylaldimine [1]benzopyrano[4 3-b]pyridine X-ray diffraction study |
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