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Showing papers on "Benzopyrans published in 1979"

Journal Article•DOI•
Condensed benzopyrans. IV. Synthesis of some derivatives of 7H- and 9H-pyrano[3,2-E]indoles

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Misbahul Ain Khan1, Maria Lucia De Brito Morley1•
Instituto Militar de Engenharia1
01 Jul 1979-Journal of Heterocyclic Chemistry
TL;DR: The hydrazones derived from coumarin-6-ylhydrazine and 6-hydrazinochromone-2-carboxylate undergo facile indolization to give 3H,7H-pyrano[3,2-e]indol-7-ones (IIIb-IIIg) and ethyl 9-oxo-3H,9H-Pyrano [3, 2]-indole-7 carboxylates (IVb-IVd), respectively, in good yields as mentioned in this paper.

8 citations

Journal Article•DOI•
Condensation of the Ethyl Ester of 4-Methyl-2-oxo-2H-1-benzopyran-3-carboxylic Acid with Aldehydes and Ketones; Synthesis of 2-Substituted 4,5-Dioxo-1,2-dihydro-4H, 5H-pyrano[3,4-c][1]-benzopyrans

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Chr. Ivanov, Y. Anghelova, S. Spirova
25 Dec 1979-Synthesis

1 citations

Journal Article•DOI•
New routes to benzopyrans. ii. 4h-1-benzopyrans

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Alain Hercouet, M. Le Corre
27 Nov 1979-ChemInform