Triethylamine → HCID 19891203, compound

Participants

Reaction Steps

In 20 ml of desiccated methanol was dissolved 515 mg of benzo[b]thieno[2,3-c]pyridine-3-carboxylic acid ethyl ester and after adding thereto 252 mg of hydrazine.di-chloride and 700 μl of triethylamine, the mixture was stirred for 2 days. Then, after refluxing the mixture for 2 hours, the temperature was allowed to lower to room temperature and crystals thus deposited were collected by filtration to provide 169 mg (yield of 0%) of benzo[b]thieno[2,3-c]pyridine-3-carbohydrazide.

Provenance & Evidence