1: With copper(l) iodide; potassium carbonate; N,N-dimethylethylenediamine in toluene T=110°C; Fischer Indole Synthesis; 40 h; Schlenk techniqueInert atmosphere; 2: With zinc(II) chloride in toluene T=90°C; Fischer Indole Synthesis; 1 h;

1: With copper(l) iodide; potassium carbonate; N,N-dimethylethylenediamine in toluene T=110°C; Fischer Indole Synthesis; 40 h; Schlenk techniqueInert atmosphere; 2: With zinc(II) chloride in toluene T=90°C; Fischer Indole Synthesis; 1 h;