Abstract
MW-irradiation of a well-ground equimolar mixture of 2-(N-alkynyl-N-aryl)aminochromone-3-carbaldehyde and dimedone underwent domino-Knoevenagel-hetero Diels–Alder (DKHDA) reaction for nonterminal alkynes, whereas conventional heating of the above reaction mixture in ethanol in the presence of pyridine accomplished alkyne-carbonyl metathesis (ACM) reaction or both ACM and DKHDA reaction. Here is the first example of an organo-catalyzed ACM reaction.
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