Abstract
A two‐component condensation reaction between an ortho‐hydroxy aromatic aldehyde and an electron‐poor acetylenic ester efficiently provides fully substituted electron‐poor aryl vinyl ethers and chromenes in a one‐pot reaction in the presence of silica‐gel in solvent‐free conditions.
Acknowledgments
This work was supported by Sandoogh Hemayate as Pajuoheshgharane Keshvare Iran.