An Easy and Convenient Synthesis of 2-Furan-2-ylacetamides by Sequential Palladium-Catalyzed Oxidative Aminocarbonylation of (<i>Z</i>)-2-En-4-yn-1-ols/Conjugate Addition/Aromatization
A simple and convenient synthesis of 2-furan-2-ylacet-amides 4 starting from readily available (Z)-2-en-4-yn-1-ols 1 is reported. The method is based on a PdI 2 -catalyzed oxidative aminocarbonylation of the triple bond of 1 to give the corresponding 2-ynamide intermediates 2, which undergo intramolecular conjugate addition to give 2-(5H-furan-2-ylidene)acetamide derivatives 3. Spontaneous or one-pot