Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives
1
Seção de Quimica, Institute Militar de Engenharia, Urca, Rio de Janeiro, RJ, Brasil
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Publication type: Journal Article
Publication date: 1977-10-01
scimago Q3
wos Q2
SJR: 0.362
CiteScore: 4.7
Impact factor: 2.4
ISSN: 0022152X, 19435193
Organic Chemistry
Abstract
3-Aminocoumarin undergoes the Skraup reaction to give a new ring system, 5H[l]benzo-pyrano[3,4-b]pyridin-5-one (IVa). When 3-aminocoumarin was condensed with the ethoxy methylene derivatives of active methylene compounds, ethyl acetoacetate, and dimethyl acetylenedicarboxylate, the intermediates Vla-VIf were formed which on thermal cyclizations afforded other derivatives of 5H[l ]benzopyrano[3,4-b]pyridin-5-one (IVb-IVf). The nitration of IVa gave IVg.
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GOST
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KHAN M. A., Gemal A. L. Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives // Journal of Heterocyclic Chemistry. 1977. Vol. 14. No. 6. pp. 1009-1012.
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KHAN M. A., Gemal A. L. Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives // Journal of Heterocyclic Chemistry. 1977. Vol. 14. No. 6. pp. 1009-1012.
Cite this
RIS
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TY - JOUR
DO - 10.1002/jhet.5570140612
UR - https://doi.org/10.1002/jhet.5570140612
TI - Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives
T2 - Journal of Heterocyclic Chemistry
AU - KHAN, MISBAHUL AIN
AU - Gemal, Andre Luis
PY - 1977
DA - 1977/10/01
PB - Wiley
SP - 1009-1012
IS - 6
VL - 14
SN - 0022-152X
SN - 1943-5193
ER -
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BibTex (up to 50 authors)
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@article{1977_KHAN,
author = {MISBAHUL AIN KHAN and Andre Luis Gemal},
title = {Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives},
journal = {Journal of Heterocyclic Chemistry},
year = {1977},
volume = {14},
publisher = {Wiley},
month = {oct},
url = {https://doi.org/10.1002/jhet.5570140612},
number = {6},
pages = {1009--1012},
doi = {10.1002/jhet.5570140612}
}
Cite this
MLA
Copy
KHAN, MISBAHUL AIN, and Andre Luis Gemal. “Synthesis of 5H[l]benzopyrano[3,4-b]pyridin-5-one and its derivatives.” Journal of Heterocyclic Chemistry, vol. 14, no. 6, Oct. 1977, pp. 1009-1012. https://doi.org/10.1002/jhet.5570140612.