Potassium Carbonate → 4-(3-Isopropyl-1H-indol-5-yloxy)-3,5-dichloro-benzaldehyde

Beteiligte Stoffe

Reaktionsschritte

Analogously to the procedure of Example V, 10.0 g (57.07 mmol) of 5-hydroxy-3-isopropylindole are dissolved in 300 ml of DMSO, 8.68 g (62.77 mmol) of potassium carbonate are added, the mixture is stirred for 10 min at room temperature and 11.95 g (57.07 mmol) of 4,5,6-trichlorobenzaldehyde are introduced in portions, and the mixture is additionally stirred for 2 hours at room temperature and 2 hours at 50° C. After quenching with ethyl acetate/ammonium chloride solution and silica gel chromatography by means of toluene, 12,01 g (85,4%) of the desired product are obtained.

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