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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1429090Generated: November 1, 2026

O-Phenylenediamine → HCID 178517134, compound

https://huagongshe.com/reaction/1429090

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-PhenylenediamineHCID 7243—
ReactantHCID 18370915HCID 18370915—
SolventEthanolHCID 702—
ProductHCID 178517134HCID 17851713494%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of ethyl 2-(benzofuran-2-yl)-2-oxoacetate (Example 15a, 237 mg, 1.09 mmol) in EtOH (2.7 mL) was added o-phenylenediamine (117 mg, 1.09 mmol). The reaction mixture was stirred at 90° C. for 16 h (a yellow solid appeared quickly). The mixture was cooled to 0° C., filtered, and the solid rinsed with cold EtOH. The yellow solid was azeotroped with CHCl3 and benzene and dried to provide the title compound (268 mg, 94% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08937041B2
Source datasetuspto-grants-2015_01
ORD IDord-7bfce7dcd7ad493b9838acbd7ad4f280
Source noteuspto-grants-2015_01