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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1053779Generated: November 1, 2026

Sodium Carbonate → HCID 178513243, compound

https://huagongshe.com/reaction/1053779

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant1-Benzofuran-5-carbonitrileHCID 2795184—
SolventEthanolHCID 702—
ProductHCID 178513243HCID 178513243172.6%

Reaction Conditions

Temperature75 °C

Reaction Steps

Prepared using General Procedure 1. To a flask containing benzofuran-5-carbonitrile (200 mg, 0.73 mmol) was added EtOH (6 mL), hydroxylamine hydrochloride (176.7 mg, 2.54 mmol) and Na2CO3 (154 mg, 1.42 mmol). The mixture was stirred at 75° C. overnight then concentrated, re-dissolved in DCM and washed with NaHCO3. The combined organic layers were dried over Na2SO4, and concentrated to provide 222 mg of crude N-hydroxybenzofuran-5-carboximidamide INT-68 as a white solid which was used directly in the next step without purification. LCMS-ESI (m/z) calculated for C9H8N2O2: 176.2; found 177.1 [M+H]+, tR=0.83 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09394264B2
Source datasetuspto-grants-2016_07
ORD IDord-1620ed58c85d4ab498dc063ea31d1811
Source noteuspto-grants-2016_07