Sodium hydride → 5-chloro-N-(2-(isopropylsulfonyl)phenyl)pyrazolo[1,5-a]pyrimidin-7-amine

Participants

Reaction Conditions

Reaction Steps

To a solution of 5,7-dichloro-pyrazolo[1,5-a]pyrimidine (1.0 mmol) and 2-(isopropylsulfonyl)aniline(1.0 mmol) in 5 mL of DMF, was added carefully NaH (24 mg). The resulting suspension was stirred at 50° C. for 2 hours. After cooling at RT and careful quenching (ice), water was added and the mixture was extracted with EtOAc. The organic layers were collected, dried (Na2SO4), filtrated and concentrated. The residue was purified over SiO2 column chromatography (eluent: 9:1 Hexane:EtOAc), to give the desired 5-chloro-N-(2-(isopropylsulfonyl)phenyl)pyrazolo[1,5-a]pyrimidin-7-amine. MS (ES+): 351.06 (M+1)+.

Provenance & Evidence