Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2038782Generated: November 2, 2026

Hydrochloric Acid → (r)-1-(5-Bromo-pyridin-2-yl)-ethylamine dihydrochloride

https://huagongshe.com/reaction/2038782

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
Reactant(R)-2-methyl-propane-2-sulfinic acid[(R)-1-(5-bromo-pyridin-2-yl)-ethyl]-amideHCID 68237516—
SolventMethanolHCID 887—
Product(r)-1-(5-Bromo-pyridin-2-yl)-ethylamine dihydrochlorideHCID 68378980101%

Reaction Steps

To a solution of (R)-2-methyl-propane-2-sulfinic acid[(R)-1-(5-bromo-pyridin-2-yl)-ethyl]-amide (500 mg, 1.64 mmol) in 5 mL of MeOH was added HCl (4.10 mL, 16.4 mmol, 4M in dioxane). The reaction mixture was stirred at room temperature for 2.5 h, during which time a white precipitate was formed. 20 mL of Et2O was added. After stirring for an additional 20 min, the reaction mixture was filtered, washing with 10 mL of Et2O. 454 mg (99%) of the title compound was isolated as a white solid after drying under high vacuum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575360B2
Source datasetuspto-grants-2013_11
ORD IDord-f4935b4666d0494eb6d8ebe19039638f
Source noteuspto-grants-2013_11