With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.25637-16-5,4-Bromotetrahydropyran,as a common compound, the synthetic route is as follows.
Cesium carbonate (33.6 mmol), 3-amino-5-bromo-1H-pyrazole-4-carbonitrile (22.4 mmol) and bromocyclopentane (2.64 mL, 24.6 mmol) in MeCN (170 mL) was stirred at 80 C for 19 h, then cooled to RT and partitioned between water and EtOAc. The organic layer was washed with brine, dried over sodium sulfate, filtered and concentrated under reduced pressure. Purification gave the titled compound (1.00g, 3.92 mmol, 18% yield). UPLC-MS(ES, Short acidic): 1.58 mi mlz 256.9 [M+2], 25637-16-5
25637-16-5 4-Bromotetrahydropyran 13349654, aTetrahydropyrans compound, is more and more widely used in various fields.
Reference£º
Patent; REDX PHARMA PLC; GUISOT, Nicolas; (266 pag.)WO2017/103611; (2017); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics