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Moskvina, Viktoriia S.; Shablykina, Olga V.; Ishchenko, Valentina V.; Khilya, Volodymyr P.
Tetrahedron letters, 01/2017, Letnik: 58, Številka: 3Journal Article
Display omitted •Efficient approach to enaminoketones of 2′-carboxamidodeoxybenzoins in good yields.•Efficient approach to otherwise not readily obtainable 3-aryl-4-formylisocoumarins.•Readily available reagents, simple procedures, and short reaction times.•N,N-Dimethylformamide dimethyl acetal serves both as a carbon source and solvent. The efficient synthesis of enaminoketones of 2′-carboxamidodeoxybenzoins and subsequent transformation into 1-oxo-3-aryl-1H-isochromene-4-carbaldehydes via an intermolecular cyclization under weakly acidic conditions has been demonstrated. Mild reaction conditions, a simple work-up procedure, short reaction times and high yields are the advantages of the presented method.
