Related Products of 153747-97-8, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.153747-97-8, name is tert-Butyl 4-(5-bromopyridin-2-yl)piperazine-1-carboxylate, molecular formula is C14H20BrN3O2, molecular weight is 342.23, as common compound, the synthetic route is as follows.
3.2.; 1-(5-bromo-2-pyridyl)piperazine 49 ml (272 mmol) of a solution of hydrochloric acid (6N) in isopropanol are added at room temperature to a solution of 18.60 g (54.40 mmol) of 1,1-dimethyl-ethyl 4-(5-bromo-2-pyridyl)-1-piperazinecarboxylate, obtained in step 3.1., in 100 ml of 1.4-dioxane. The reaction mixture is then maintained at about 60 C. for 3 hours. The mixture is concentrated to dryness under reduced pressure. The dihydrochloride obtained is taken up in 200 ml of dichloromethane and 200 ml of water, followed by portionwise addition, with stirring, of 10 g of sodium hydrogen carbonate. The phases are separated by settling, the aqueous phase is extracted twice with dichloromethane, and the combined organic phases are washed with saturated aqueous sodium chloride solution, dried over sodium sulfate and concentrated under reduced pressure. 12 g of product are obtained in the form of a white solid. m.p. ( C.): 72 C.
The chemical industry reduces the impact on the environment during synthesis 153747-97-8, I believe this compound will play a more active role in future production and life.
Reference:
Patent; SANOFI-AVENTIS; US2006/293310; (2006); A1;,
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