Synthesis of 6-amino-4-aryl- 2R-4H-furo[2,3-b]pyran-5-carbo- nitriles based on the condensation of 3-arylmethylene-3H-furan-2-ones with malononitrile
Methods were developed for the synthesis of 6-amino-4-aryl-2R-4H-furo[2,3-b]pyran-5-carbonitriles based on the reaction of 3-arylmethylene-3H-furan-2-ones with malononitrile and also using a multicomponent reaction. The reaction schemes are discussed.