Convenient synthesis of pyrazolo[3,4-b]pyridin-3-ones and pyrazolo[3,4-b]pyridine-5-carbaldehyde using vinamidinium salts

An expedient method for the synthesis of 2-phenyl-5-aryl-2,3-dihydropyrazolo[3,4-b]pyridin-3-ones and 2-phenyl-3-oxo-2,3-dihydropyrazolo[3,4-b]pyridine-5-carbaldehyde in a single-step via condensation of vinamidinium salts with 3-amino-1-phenyl-2-pyrazolin-5-one is described.

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Bibliographische Detailangaben
Veröffentlicht in:	Tetrahedron letters 2011-07, Vol.52 (28), p.3648-3650
Hauptverfasser:	Samar, Chtiba, Fayçel, Jemmezi, Jameleddine, Khiari
Format:	Artikel
Sprache:	eng
Schlagworte:	2-Phenyl-3-oxo-2,3-dihydropyrazolo[3,4-b]pyridine-5-carbaldehyde 2-Phenyl-5-aryl-2,3-dihydropyrazolo[3,4-b]pyridin-3-ones Chemistry Condensing Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with only one n hetero atom and condensed derivatives Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings Heterocyclocondensation Organic chemistry Preparations and properties Synthesis (chemistry) Tetrahedrons Vinamidinium salts
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