l-Proline-catalyzed three-component domino reactions in the regioselective synthesis of novel densely functionalized pyrazolo[3,4-b]pyridines?
RSC Advances Pub Date: 2013-03-15 DOI: 10.1039/C3RA00136A
Abstract
The L-proline-catalyzed three-component synthesis of novel 3-methyl-1-aryl-1H-pyrazolo[3,4-b]pyridines in good yields from the reaction of 3-methyl-1-aryl-1H-pyrazol-5-amines, 1,3-dicarbonyl compounds and aromatic aldehydes in ethanol is described. This domino transformation presumably involves the formation of two C–C bonds and one C–N bond in a single synthetic operation.
![Graphical abstract: l-Proline-catalyzed three-component domino reactions in the regioselective synthesis of novel densely functionalized pyrazolo[3,4-b]pyridines](http://scimg.chem960.com/usr/1/C3RA00136A.jpg)
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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