4-Toluenesulfonyl chloride → HCID 58086639, compound

Participants

Reaction Steps

To (3-nitro-phenyl)-(5-pyridin-3-yl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanone (536, 291 mg, 0.85 mmol) in tetrahydrofuran (7 mL) was added 1.5 M of lithium diisopropylamide in cyclohexane (676 μl , 1.59 mmol) at −78° C. under an atmosphere of nitrogen. After 30 minutes, p-toluenesulfonyl chloride (209 mg, 1.10 mmol) was added in tetrahydrofuran and the reaction was stirred for three hours. The reaction was poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate and concentrated. All solids were filtered and purified by silica gel column chromatography eluting with 60% ethyl acetate in hexane to give the compound (537, 182 mg, 43%). MS (ESI) [M+H+]+=499.2.

Provenance & Evidence