Sodium Hydroxide → HCID 58931881, compound

Temperature

80 °C

To an 80° C. solution of 2-adamantanamine hydrochloride (2.50 g, 13.3 mmol) and sodium hydroxide (586 mg, 14.6 mmol) in 1,4-dioxane (7 mL) and water (7 mL) was added via syringe pump (1 hour addition) a solution of 3-chloro-2-hydroxy-propane sulfonic acid, sodium salt (1.76 g, 8.9 mmol) in 1,4-dioxane (1 mL) and water (9 mL). The solution was stirred at 80° C. for an additional 4 hours. The reaction was cooled to room temperature. The solvent was evaporated under reduced pressure. The solid was suspended in EtOH (25 mL). The mixture was heated to reflux for 1 minute. The solid was removed by filtration. The pure product crystallized in the filtrate. The product was filtered, washed with EtOH (1×10 mL) and dried in vacuo. Yield: 30%. 1H NMR (D2O, 500 MHz) δ ppm 4.30 (m, 1H), 3.35 (m, 2H), 3.03 (m, 3H), 2.07 (m, 2H), 1.84 (m, 2H), 1.75 (m, 4H), 1.65 (d, 6H). 13C (D2O, 125 MHz) δ ppm 63.31, 55.03, 49.51, 36.51, 36.33, 36.26, 29.78, 29.23, 28.81, 26.63, 26.38. ES-MS 289 (M+1).

1. temperatureThe reaction was cooled to room temperature
2. customThe solvent was evaporated under reduced pressure
3. temperatureThe mixture was heated
4. temperatureto reflux for 1 minute
5. customThe solid was removed by filtration
6. customThe pure product crystallized in the filtrate
7. filtrationThe product was filtered
8. washwashed with EtOH (1×10 mL)
9. customdried in vacuo

ORD record

ord-bf97edad53474f68bc7e946820cb9753

Source dataset

uspto-grants-2014_02

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08642801B2