The synthesis of thiazolo[3,4-a]pyridin-3-imines through the denitrogenative transannulation of pyridotriazoles with isothiocyanates using BF3·Et2O as a catalyst is described. A combination of solvents (dichlorobenzene-dichloroethane) plays a crucial role in obtaining the desired products under transition metal-free conditions.
![Graphical abstract: BF3·Et2O catalyzed transannulation of pyridotriazoles with isothiocyanates: synthesis of thiazolo[3,4-a]pyridin-3-imines](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=D1NJ04033B&imageInfo.ImageIdentifier.Year=2021)
R. Kumar, V. Ginoya, R. Semwal and S. Adimurthy, New J. Chem., 2021, 45, 20547 DOI: 10.1039/D1NJ04033B
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