A new Approach to the synthesis of functional derivatives of 3-(4-Pyridinyl)-1H-indole and 4-s(1H-Indol-3-yl)thieno[2,3-b]pyridine

Abstract

Sequential reaction of indole-3-carbaldehyde with cyanothioacetamide and KOH led to the formation of potassium 6-amino-4-(1H-indol-3-yl)-3,5-dicyanopyridine-2-thiolate. S-Alkylation of the latter afforded new functional derivatives of 3-(pyridine-4-yl)-1H-indole and 4-(1H-indol-3-yl)-thieno[2,3-b]pyridine