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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 25397Generated: October 28, 2026

Ammonia → 5-amino-3-benzylamino-1H-indazole

https://huagongshe.com/reaction/25397

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantEthanolHCID 702—
ReactantHCID 22567151HCID 22567151—
SolventWaterHCID 962—
Product5-amino-3-benzylamino-1H-indazoleHCID 2256730028.1%

Reaction Steps

5-Amino-3-benzylamino-1H-indazole can be obtained as described in Example 4 from 0.6 g of 3-benzylamino-5-nitro-1H-indazole, 22 ml of ethanol, 4.5 g of ferrous sulfate, 7 ml of water and 5.4 ml of 32% aqueous ammonia. 0.15 g of 5-amino-3-benzylamino-1H-indazole is thus obtained in the form of a brown powder melting at 196° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06858638B2
Source datasetuspto-grants-2005_02
ORD IDord-6e84379ad08745859e7af0c1a96d4bf5
Source noteuspto-grants-2005_02