Water → 6-Cyclopropylmethoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine

Participants

Reaction Conditions

Reaction Steps

Cyclopropylmethanol (2.64 ml) was initially charged in DMF (35 ml), admixed under argon with sodium hydride (795 mg) and stirred at 40° C. for 1 h. Subsequently, 6-chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-ylamine hydrobromide (W2.001; 1.66 g), dissolved in DMF (35 ml), were added dropwise. After 1 h, the mixture was admixed with water and extracted by shaking four times with dichloromethane. The combined organic phases were dried over magnesium sulfate and concentrated by rotary evaporation. The residue was triturated with MtB ether, filtered off with suction and dried. 720 mg of the title compound were obtained.

Provenance & Evidence