HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475148Generated: October 29, 2026
Ammonium Chloride → HCID 86694707, compound
https://huagongshe.com/reaction/475148
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | HCID 86694706 | HCID 86694706 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 86694707 | HCID 86694707 | 97.7% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08637537B2 |
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| Source dataset | uspto-grants-2014_01 |
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| ORD ID | ord-16785498efb446e7b487ed404d441751 |
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| Source note | uspto-grants-2014_01 |
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