The preparation of selected benzopyrano[3,4-b]pyrazoles by the condensation of c(α),n-dilithiocarboalkoxyhydrazones and salicylate esters
- 1 September 1986
- journal article
- research article
- Published by Wiley in Journal of Heterocyclic Chemistry
- Vol. 23 (5) , 1343-1346
- https://doi.org/10.1002/jhet.5570230515
Abstract
No abstract availableKeywords
This publication has 13 references indexed in Scilit:
- The preparation and reactions of C(α),N-dilithiocarboalkoxyhydrazonesJournal of Heterocyclic Chemistry, 1984
- Intra- and Intermolecular [3++2] Cycloadditions of Aldehyde or KetohydrazonesBulletin of the Chemical Society of Japan, 1984
- A Facile Intramolecular Cyclization of 4-Diazomethylcoumarins. A Convenient Route to Benzopyrano[3,4-c]pyrazol-4(3H)-onesHETEROCYCLES, 1984
- 4-Oxo-1H-and-2H-[1]benzopyrano[4,3-c]pyrazoles. Preparation from 4-hydroxycoumarin or 3-chromonecarboxylic acid derivatives.Tetrahedron Letters, 1983
- Intramolecular 1,3-Dipolar Cycloaddition of Nitrilimines Bearing Alkenyl GroupsBulletin of the Chemical Society of Japan, 1982
- The preparation of 5-phenacylisoxazoles and 5-hydroxyphenyl-isoxazoles and -pyrazoles by the condensation of C(a)-dianions with ethyl benzoylacetate and methyl salicylateJournal of Heterocyclic Chemistry, 1982
- An improved synthesis of 3,5‐disubstituted isoxazoles and pyrazoles from C(α),O‐dilithiooximes and C(α),N‐dilithiophenylhydrazonesJournal of Heterocyclic Chemistry, 1980
- A new synthesis of 2-pyrazolin-5-ones from the condensation ofC(α),N-dilithiophenylhydrazones with diethyl carbonateJournal of Heterocyclic Chemistry, 1980
- New method for the preparation of 4-acylpyrazoles. Reaction of C(.alpha.),N dianions of phenylhydrazones with acid chloridesThe Journal of Organic Chemistry, 1975
- Preparation of pyrazoles from the C(α)NN-trianion of hydrazones having an α-hydrogen atomJournal of the Chemical Society C: Organic, 1971