HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79256Generated: October 29, 2026
Ammonium Chloride → 1-benzyl-3-iodo-1H-indazol-4-amine
https://huagongshe.com/reaction/79256
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | HCID 67259890 | HCID 67259890 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 1-benzyl-3-iodo-1H-indazol-4-amine | HCID 67259592 | 99.9% |
Reaction Steps
1-Benzyl-3-iodo-4-nitro-1H-indazole (340 mg; 0.897 mmol) was dissolved in a mixture of ethanol (8 mL) and water (2 mL). Ammonium chloride (24 mg; 0.45 mmol) and iron powder (501 mg; 8.97 mmol) were added and the mixture was stirred with heating to 75° C. under a nitrogen atmosphere for 4 hours. The mixture was allowed to cool, diluted with ethyl acetate (50 mL) and filtered through a pad of Celite. The solution was concentrated under reduced pressure to give 1-benzyl-3-iodo-1H-indazol-4-amine (313 mg) as a pale yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08841455B2 |
|---|
| Source dataset | uspto-grants-2014_09 |
|---|
| ORD ID | ord-072e9b5204364a2989ef9a1231918e2c |
|---|
| Source note | uspto-grants-2014_09 |
|---|