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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475148Generated: October 29, 2026

Ammonium Chloride → HCID 86694707, compound

https://huagongshe.com/reaction/475148

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 86694706HCID 86694706—
CatalystZincHCID 23994—
SolventAcetic AcidHCID 176—
SolventMethanolHCID 887—
ProductHCID 86694707HCID 8669470797.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 1-(6-fluoro-1H-benzo[d]imidazol-4-yl)ethanone oxime (351 mg, 1.82 mmol), Zn powder (1.18 g, 18.2 mmol), and NH4Cl (973 mg, 18.2 mmol) in MeOH (50 mL) and HOAc (10 mL) was heated at 80° C. for 4 h. The reaction mixture was filtered and the filtrate concentrated in vacuo. To the residue was added NH4OH (50 mL), and the mixture was extracted with DCM (50 mL×3). The combined extracts were dried (MgSO4), filtered, and concentrated in vacuo. The crude mixture was purified by SiO2 chromatography eluting with DCM/MeOH/TEA (10:1:0.2) to afford 1-(6-fluoro-1H-benzo[d]imidazol-4-yl)ethanamine (121) as a yellow solid (318 mg, 97.7%). MS (ESI): m/z=180.1 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637537B2
Source datasetuspto-grants-2014_01
ORD IDord-16785498efb446e7b487ed404d441751
Source noteuspto-grants-2014_01