Stannous chloride dihydrate → HCID 22663625, compound

Participants

Reaction Steps

A solution of N-(2-chlorophenyl)-N-methyl-(3-nitrophenyl)sulfonamide (2.6 mmol, 848 mg) and tin (II) chloride dihydrate (10.4 mmol, 2.35 g) were heated for 4 hr at reflux in 15 mL of methanol. The reaction mixture was cooled to room temperature and diluted with 20 mL of ethyl acetate and 10 mL of a saturated solution of aqueous sodium carbonate. Heavy gas evolution was observed upon addition of aqueous sodium carbonate to the reaction mixture. The reaction mixture was stirred 1 hr and then filtered through a plug of Celite®. The layers were separated and the organic layer was extracted once with a saturated solution of aqueous sodium carbonate, once with brine, and then dried with sodium sulfate. The crude product was purified using flash chromatography (0-5% ethyl acetate/methylene chloride) to give N-(2-chlorophenyl)-N-methyl-(3-aminophenyl)sulfonamide as an off white foam. 1H NMR (300 MHz) 3.13 (s, 3H), 3.80 (br s, 2H), 6.80-6.87 (m, 1H), 7.02-7.25 (m, 6H), 7.30-7.38 (m, 1H). MS (ESI): m/e 297.2, 299.2 (M+1).

Provenance & Evidence