tert-Butyl-3-aminobenzoate → 3-(Pyridine-3-sulfonylamino)-benzoic acid tert-butyl ester

Participants

Reaction Steps

A solution of tert-butyl-3-aminobenzoate (100 mg, 0.5 mmol) and pyridine-3-sulfonylchloride (110 mg, 0.5 mmol) in pyridine (5 ml) was heated to 50° C. for 90 min. On cooling, the reaction was diluted with toluene (100 ml) and concentrated in vacuo. This was repeated with further aliquots of toluene until all the pyridine had been removed to afford the title compound as a yellow oil (175 mg). HPLC retention time 4.27 min. Mass spectrum (ES+) m/z 335 (M+H).

Provenance & Evidence