Sustainable Mechanochemical Synthesis of Spiro[indoline‐pyrano[3,2‐ c ]pyran] Derivatives: Mechanistic Insights, Molecular Docking, and Antidiabetic Evaluation
An efficient and eco‐benign liquid‐assisted mechanistic approach for synthesis of spiro[indoline‐3,4'‐pyrano[4,3‐ b ]pyran] scaffolds has been developed from 1,4‐diazabicyclo[2.2.2]octane (DABCO) catalyzed multi‐component reaction of isatin, malononitrile, and 4‐hydroxy‐6‐methyl‐2 H ‐pyran‐2‐one under mechanoch...