反应详情

3.79g of 4-bromo-3-t-butyl-1H-pyrazole-1-ylmethanol was dissolved to 45 ml of dichloromethane. 3.4 ml of thionyl chloride was added to the solution, followed by stirring at room temperature for overnight. The reaction mixture was concentrated under reduced pressure. The solid obtained was washed with hexane and chloroform to obtain 3.69 g of 4-bromo-3-t-butyl-1-(chloromethyl)-1H-pyrazole hydrochloride.

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. customThe solid obtained
3. washwas washed with hexane and chloroform