Triphenylphosphine → 2-nitro-N-[2-(7-oxo-7H-furo[2,3-c]pyridin-6-yl)ethyl]-N-[3-(tetrahydropyran-2-yloxy)propyl]benzenesulfonamide

Participants

Reaction Steps

Triphenylphosphine (393 mg, 1.5 mmol) and azodicarboxylic acid di-tert-butyl ester (345 mg, 1.5 mmol) were added to a tetrahydrofuran (THF) solution (10 ml) of 6-(2-hydroxyethyl)-6H-furo[2,3-c]pyridin-7-one (179 mg, 1.0 mmol) and 2-nitro-N-[3-(tetrahydropyran-2-yloxy)propyl]benzenesulfonamide (413 mg, 1.2 mmol), and stirred overnight. The resulting reaction mixture was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=1:1→0:1). The purified product was concentrated to dryness under reduced pressure to thereby obtain 286 mg (yield: 57%) of 2-nitro-N-[2-(7-oxo-7H-furo[2,3-c]pyridin-6-yl)ethyl]-N-[3-(tetrahydropyran-2-yloxy)propyl]benzenesulfonamide as a white amorphous solid.

Provenance & Evidence