Chlorosulfonic acid → HCID 58169543, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-chloro-2-(furan-2-yl)-4-(methylthio)pyrimidine (800 mg, 3.53 mmol, 1.0 equiv.) in CH2Cl2 (5 mL) was added ClSO3H (25 mL) dropwise at −20° C. The reaction mixture was stirred at 25° C. for 2 h, then, quenched with cracked ice at −20° C. The mixture was extracted with ethylacetate. The combined organic layers was dried with Na2SO4 to give a solution of 5-(5-chloro-4-(methylthio)pyrimidin-2-yl)furan-2-sulfonyl chloride in ethylacetate, to which t-butylamine (10 mL) was added. The mixture was stirred at 20° C. for 2 h, then, concentrated. The residue was purified by column chromatography to afford N-tert-butyl-5-(5-chloro-4-(methylthio)pyrimidin-2-yl)furan-2-sulfonamide (147 mg, 12% over 2 steps). LC-MS (m/z)=362.0 [M+H]+.

Provenance & Evidence