Reference of 852227-86-2,Some common heterocyclic compound, 852227-86-2, name is 5-(Chloromethyl)-1,3-dimethyl-1H-pyrazole, molecular formula is C6H9ClN2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a suspension of NaH (64 mg, 1.59 mmol) in THF (4 mL) at 0 0C under argon was added 5-(chloromethyl)-l,3-dimethyl-lH-pyrazole (230 mg, 1.59 mmol) and allowed to stir for 20 minutes. (6-Bromopyridin-2-yl)methanol (150 mg, 0.80 mmol) was then added and the mixture was allowed to warm to room temperature and then heated to 55C overnight. The reaction was then cooled to ambient temperature and quenched by the addition of water. The quenched reaction mixture was diluted with water (10 mL) and DCM (10 mL) and shaken. The suspensions were passed through disposable phase separators and the DCM eluent was captured and evaporated to dryness to afford the title compound which was used without further purification. Calc’d for C12H15BrN3O [M+H]+: 296, Found 296.
The synthetic route of 852227-86-2 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; MERCK & CO., INC.; WO2008/156726; (2008); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics