Ethanethiol → HCID 86720183, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of ethyl 4-methyl-6-(trifluoro-methyl-sulfonyloxy)thieno[2,3-b]pyridine-5-carboxylate (1.84 g, 4.9 mmol, 1 eq.) in DMF (30 ml) were added K2CO3 (2.70 g, 19.6 mmol, 4 eq.) and ethanethiol (3.73 ml, 49.8 mmol, 10 eq.) at RT. The reaction mixture was stirred at 80° C. for 2 h. Afterwards the mixture was diluted with water (50 ml) and was extracted with EtOAc (2×50 ml). The combined organic layers were washed with water (50 ml), brine (50 ml), dried over Na2SO4 and evaporated. The crude product was purified by CC (EtOAc/hexane 1:49) to yield ethyl 6-(ethylthio)-4-methylthieno[2,3-b]pyridine-5-carboxylate (0.26 g, 0.92 mmol, 19%).

Provenance & Evidence