Abstract
A novel additive-assisted reaction for the synthesis of dihydropyridines using copper salts as catalyst has been described. The (imino)pyridine skeletons were obtained in acceptable yields through a domino reaction involving terminal alkynes, carbodiimides, and acetylenic esters. Control experiments were conducted to explore the reaction path and to prove the mechanism proposed for the reaction.
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We wish to thank for a grant from the Islamic Azad University, South Tehran Branch.
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Jalali, M.S., Manafi, M., Homami, S.S. et al. Catalytic synthesis of dihydropyridines by domino reaction of terminal alkynes, carbodiimides, and acetylenic esters. Monatsh Chem 151, 1173–1181 (2020). https://doi.org/10.1007/s00706-020-02655-w
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DOI: https://doi.org/10.1007/s00706-020-02655-w