Sodium Hydroxide → HCID 18950551, compound

Participants

Reaction Steps

A solution of 3.6 g of 4-acetoxy-1-(8-methyl-1,2,4-triazolo [4,3-b]pyridazin-6-yl)-3-(phenylselenyl)piperidine in 25 ml of ethanol was stirred at room temperature while 10 ml of 1N sodium hydroxide was added. After stirring an additional 30 minutes at room temperature, the reaction was partitioned in water/dichloromethane. The layers were separated, the aqueous phase was washed with fresh dichloromethane and the combined organic layers were dried over anhydrous sodium sulfate and evaporated to give a colorless glass. When this material was boiled in 50 ml of ethyl acetate, a crystalline material formed. After cooling to room temperature, the product was collected and dried to give 1-(8-methyl-1,2,4-triazolo[4,3-b]pyridazin-6-yl)-3-(phenylselenyl)-4-piperidinol melting at about 157°-160° C.

Provenance & Evidence