Synthesis of electron-deficient dienes bearing a chromonyl moiety via the reaction of 3-formylchromones with ylidenemalononitriles and ethyl α-cyano-β-methylcinnamate
Keywords: 3-Formylchromones; 3-(Buta-1,3-dienyl)chromones; Ylidenemalononitriles; Electron-deficient dienes; Aldol type condensation;