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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059482Generated: October 30, 2026

2-Amino-4-Nitrophenol → HCID 18629909, compound

https://huagongshe.com/reaction/1059482

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-4-NitrophenolHCID 3613389—
ReactantEthanimidic acid, 2-cyano-, methyl ester, hydrochloride (1:1)HCID 12436302—
SolventMethanolHCID 887—
ProductHCID 18629909HCID 1862990984.2%

Reaction Steps

The mixture of methyl cyanoacetimidate hydrochloride (43.47 g, 0.32 mole) and 4-nitro-2-aminophenol (24.9 g, 0.16 mole) in methanol (260 ml) was heated at reflux for 3 h. The mixture was placed in an ice bath for 30 minutes and was filtered. The solid material was suspended in water (300 ml), stirred for a few minutes and filtered. It was washed with water (200 ml) and air dried to give 4-nitro-2-benzoxazoleacetonitrile (27.38 g, 83%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06521397B1
Source datasetuspto-grants-2003_02
ORD IDord-433be1a8d98d4bf698b3f36f7c2ddc37
Source noteuspto-grants-2003_02