Hydrazine → HCID 54501591, compound

Participants

Reaction Steps

A suspension of 19.4 g of 2-[4-[4-(1H-tetrazol-1-yl)phenoxy]butyl]-1H-isoindole-1,3(2H)-dione (Example 38) in 400 ml boiling ethanol is treated with 3 ml of anhydrous hydrazine, and the mixture stirred at reflux for 16 hours. The precipitate is collected, washed with 200 ml of hot 1.5N HCl, and 50 ml of H2O. The combined ethanol, hydrochloric acid, and water filtrates are taken to dryness in vacuo to give the hydrochloride salt of the title compound. A portion of the salt was recrystallized from hot ethanol, m.p. 197°-198° C. (dec.).

Provenance & Evidence