Dimethylformamide → HCID 178420130, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 61.4 g. (0.28 mole) of 5-cyano-3-phenylbenzofuran (described in U.S. Pat. No. 4,067,993, Example 1), 16.5 g. (0.31 mole) of ammonium chloride and 20.2 g. (0.31 mole) of sodium azide in 250 ml. of N,N-dimethylformamide is stirred at 110°-120° C. for 16 hours. The mixture is cooled to about 20° C. and poured into about 1 liter of water. A light brown solid forms which is collected by filtration, washed with water, and then recrystallized from ethanol to provide brown crystals of 3-phenyl-5-(1H-tetrazol-5-yl)benzofuran.

Provenance & Evidence