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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 25371Generated: October 25, 2026

Ammonia → HCID 178507363, compound

https://huagongshe.com/reaction/25371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
ReactantHCID 178526495HCID 178526495—
SolventDichloromethane ethylacetateHCID 21226138—
ProductHCID 178507363HCID 17850736325.7%

Reaction Steps

5-Amino-3-iodo-1H-indazole can be obtained as described in Example 4 from 1 g of 3-iodo-5-nitro-1H-indazole, 20 ml of ethanol, 6.9 g of ferrous sulfate, 10.8 ml of distilled water and 8.2 ml of 32% aqueous ammonia. 230 mg of 5-amino-3-iodo-1H-indazole are thus obtained in the form of a yellow foam (Rf=0.12, silica gel thin layer chromatography, eluent: ethyl acetate/dichloromethane (2/8 by volume)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06858638B2
Source datasetuspto-grants-2005_02
ORD IDord-99a073bb0a594f1b8fbc672a6e56d23e
Source noteuspto-grants-2005_02