1,2-Oxathiolane, 3-methyl-, 2,2-dioxide → 4-(Bicyclo[2.2.1]hept-2-ylamino)-2-butanesulfonic acid

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Reaction Steps

To a solution of exo-2-aminonorbornane (1.0 g, 9.0 mmol) in tetrahydrofuran (THF, 10 mL) was added 2,4-butane sultone (1.28 g, 9.3 mmol). The solution was stirred at reflux for 3 hours. The reaction was cooled to room temperature. The solid was collected by filtration, washed with THF (2×20 mL) and dried in vacuo. 1H NMR (DMSO, 500 MHz) δ ppm 8.43 (s (broad), 1H), 2.96 (m, 3H), 2.62 (m, 1H), 2.38 (m, 1H), 2.28, (m, 1H), 1.91 (m, 1H), 1.82 (m, 1H), 1.61 (m, 1H), 1.54 (m, 2H), 1.42 (m, 2H), 1.12 (m, 6H). 13C (DMSO, 125 MHz) δ ppm 60.92, 60.79, 53.61, 53.21, 44.55, 44.36, 39.80, 39.55, 36.27, 36.15, 36.11, 35.98, 35.19, 35.13, 29.62, 29.43, 28.07, 26.88, 17.56, 14.11. ES-MS 248 (M+1).

Provenance & Evidence