ChemInform Abstract: Acetylenic Chemistry. Part 10. Cycloisomerization of 3‐Acetyl‐3‐(prop‐2‐ynyl)indol‐2‐one to 3‐Acetyl‐2‐methyl‐2H‐furo(2,3‐b)indole.
Abstract:ChemInform Abstract The propynylindolinone (I) reacts with PPA and water to form the propanone (II). The acetylated analogue (III) is cyclized upon acidic treatment to give the furoindole (IV).
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