A rapid and environmentally friendly method is developed for the synthesis of a series of new substituted 2-amino-4H-pyran-3-carbonitriles through a one-pot condensation of malononitrile and ????. ????-bis(arylidene) cycloalkanones in ethanol by using K2CO3 as a catalyst. Short experimental reaction times. excellent yields. https://scrubsuniforms.shop/product-category/aprons/