Catalytic synthesis of dihydropyridines by domino reaction of terminal alkynes, carbodiimides, and acetylenic esters
2020
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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