%0 Journal Article %T Regioselective Friedel-Crafts acetylation of 5-hydroxyindole derivatives: synthesis of 4H-pyranoindol-4-one derivatives %A A G Kamat %A G S Gadaginamath %J - %D 1994 %U https://www.ias.ac.in/describe/article/jcsc/106/04/0857-0862