Three-Component Synthesis and Crystal Structure of 2-Amino-3-cyano-4H-pyran and -thiopyran Derivatives

Abstract 2-Amino-3-cyano-4H-pyran and -thiopyran derivatives were synthesized by three-component reac­tions of aldehydes, dimedone, and CH acids. The molecular and crystal structures of the synthesized compounds were determined by X-ray analysis.