P. S. Lebedˈ, N. Mozgovaya, P. Kos
Jun 1, 2012
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Influential Citations
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Journal
Chemistry of Heterocyclic Compounds
Abstract
Ethyl 5-amino-3-oxo-1,2-dihydro-1H-pyrazole-1-carboxylate undergoes selective cyclocondensation with 1,3-dicarbonyl compounds or their synthetic equivalents to give ethyl 3-oxo-1,2-dihydro-pyrazolo[3,4-b]pyridine-1-carboxylates which are readily converted to their 1-unsubstituted analogs.