SEARCH Articles Figures Tables Anilines Sandmeyer isatin synthesis Indoles Sandmeyer isatin synthesis Isatin Isatin ring synthesis Isatines Isatins Gassman oxindole synthesis Isatins Sandmeyer synthesis Isatins ring synthesis Pfitzinger synthesis from isatins Quinolines Pfitzinger synthesis from isatins Ring Synthesis of Isatins Sandmeyer isatin synthesis Synthesis of Isatins