Hydrochloric Acid → HCID 66877653, compound

Temperature

80 °C

(Step 3) To a solution of 5-bromo-2-(methylsulfanyl)benzaldehyde O-methyloxime obtained in Step 2 (11.8 g) in tetrahydrofuran (200 ml) was added tetrahydrofuran-borane (113.4 ml, 1M tetrahydrofuran solution) at 0° C. The mixture was stirred at 80° C. for 3 hr, and treated with ice, and 1N hydrochloric acid (200 ml) was added. The mixture was stirred at 90° C. for 1 hr, and ethyl acetate was added to the mixture. The separated aqueous layer was basified with 8N sodium hydroxide solution, and extracted with ethyl acetate. The extract was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure. The obtained residue was dissolved in methanol, 4N hydrogen chloride-ethyl acetate solution (15 ml) was added, and the obtained precipitate was collected by filtration, and washed with ethyl acetate to give 1-[5-bromo-2-(methylsulfanyl)phenyl]methanamine hydrochloride (7.25 g).

1. additionwas added
2. stirringThe mixture was stirred at 90° C. for 1 hr
3. extractionextracted with ethyl acetate
4. washThe extract was washed with saturated brine
5. dry with materialdried over magnesium sulfate
6. customThe solvent was evaporated under reduced pressure
7. dissolutionThe obtained residue was dissolved in methanol
8. addition4N hydrogen chloride-ethyl acetate solution (15 ml) was added
9. filtrationthe obtained precipitate was collected by filtration
10. washwashed with ethyl acetate

ORD record

ord-5cc8a8fbf3a640ffba0c5ac326bb7433

Source dataset

uspto-grants-2011_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07982044B2