Triphenylphosphine → N-cyclopropyl-4-methyl-3-{[4-(1-pyridin-2-ylethoxy)benzoyl]amino}benzamide

Participants

Reaction Steps

To 3-{[4-(hydroxy)benzoyl]amino}-N-cyclopropyl-4-methylbenzamide (150 mg, 0.484 mmol) in DCM (20 mL) was added polymer supported triphenyl phosphine (937 mg, 1.45 mmol) and the 1-pyridin-2-ylethanol (45 mg, 0.363 mmol). Diethyl azodicarboxylate (126 mg, 0.726 mmol) was then added dropwise. The reaction was stirred for 17 h at room temperature and was then filtered and the filtrates were evaporated. The crude residue was purified by flash silica chromatography using ethyl acetate in iso-hexane (5-100%) as the eluent to give the title compound as a colourless oil (22 mg, 11%); NMR Spectrum: (DMSOd6) 0.55 (m, 2H), 0.68 (m, 2H), 1.64 (d, 3H), 2.22 (s, 3H), 2.83 (m, 1H), 5.60 (q, 1H), 7.02 (d, 2H), 7.31 (d, 2H), 7.43 (d, 1H), 7.62 (d, 1H), 7.80 (m, 2H), 7.90 (d, 2H), 8.35 (d, 1H), 8.58 (d, 1H), 9.75 (s, 1H); Mass Spectrum: M+H+ 416.

Provenance & Evidence