Hydrochloric Acid → HCID 178519391, compound

Participants

Reaction Steps

Sodium azide (2.9 g, 44.6 mmol) and TEA hydrochloride (4.13 g, 30 mmol) were added to a solution of 5-formyl-thiophene-3-carbonitrile (2 g, 15 mmol, prepared according to Intern. application WO 02/26718) in DMF (50 ml). The solution was refluxed for 12 h. After cooling to RT, water was added and the solution was carefully acidified with HCl. The solution was extracted 3 times with EtOAc. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure to yield the desired product as a brown solid (540 mg) which was used without further purification.

Provenance & Evidence