α, β‐Unsaturated Nitriles in Heterocyclic Synthesis: The Reaction of β‐(2‐Furanyl)‐ and β‐(2‐Thienyl)acrylonitrile with Active Methylene Reagents

Abstract

Abstract The reactions of β‐(2‐furanyl)‐ and β‐(2‐thienyl)acrylonitrile with a variety of active methylene reagents are described. The investigations make several new pyran and pyranodiazle derivatives accessible.