Efficient and Facile Synthesis of 3‐Amino‐1‐aryl‐9H‐fluorene‐2,4‐dicarbonitrile under Solvent‐Free Conditions.

A versatile and efficient route to 3-amino-1-aryl-9H-fluorene-2,4-dicarbonitrile via multicomponent reactions of 1-indanone, aromatic aldehydes, and malononitrile under solvent-free conditions using NaOH as the catalyst is described. This method provides several advantages over alternative procedures such as mild, solvent-free conditions at ambient temperature and direct isolation of the products in good yields.