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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 896206Generated: October 26, 2026

Ammonium Chloride → 6-amino-3-ethyl-4-fluoro-1,3-benzoxazol-2(3H)-one

https://huagongshe.com/reaction/896206

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 45095618HCID 45095618—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product6-amino-3-ethyl-4-fluoro-1,3-benzoxazol-2(3H)-oneHCID 68490571—

Reaction Steps

Prepared from 3-ethyl-4-fluoro-6-nitro-1,3-benzoxazol-2(3H)-one (Step 1, 1.05 g, 4.90 mmol), ammonium chloride (2.62 g, 49 mmol) and iron powder (1.09 g, 19.6 mmol) in ethanol (30 ml) and water (15 ml) according to the method of EXAMPLE 86, Step 7 (0.95 g, 99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06919329B2
Source datasetuspto-grants-2005_07
ORD IDord-749f4ec2a8264e54816f1e2671b08f23
Source noteuspto-grants-2005_07