Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1912454Generated: November 4, 2026

Hydrochloric Acid → HCID 178463266, compound

https://huagongshe.com/reaction/1912454

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 178453171HCID 178453171—
ProductHCID 178463266HCID 178463266100%

Reaction Steps

Hydrochloric acid 4 M in dioxane (7.88 mL, 31.54 mmol) was added to rac-[1-(3-bromo-phenyl)-1-(1H-pyrazol-3-yl)-ethyl]-carbamic acid tert-butyl ester (1.65 g, 4.51 mmol) at room temperature. The mixture was stirred at room temperature for 1 hour. The solvent was evaporated in vacuo. The residue was suspended in DCM and washed with NaHCO3 (aq. sat. solution). The organic layer was separated, dried (MgSO4), filtered and the solvents evaporated in vacuo to yield rac-1-(3-bromo-phenyl)-1-(1H-pyrazol-3-yl)-ethylamine (1.2 g, 100% yield) as a white solid, which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609660B2
Source datasetuspto-grants-2013_12
ORD IDord-505d0a9b58344212af30490457251c50
Source noteuspto-grants-2013_12