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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1843501Generated: October 25, 2026

Ethanol → HCID 178509693, compound

https://huagongshe.com/reaction/1843501

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydrazineHCID 9321—
Reactant1-(3-Cyanophenyl)-3-(dimethylamino)acroleinHCID 5714073—
ProductHCID 178509693HCID 17850969384.7%

Reaction Steps

The 3-[(2E)-3-(dimethylamino)prop-2-enoyl]benzonitrile (0.600 g, 0.00300 mol) was dissolved in ethanol (20.0 mL, 0.342 mol) and hydrazine (0.56 mL, 0.018 mol) under an atmosphere of nitrogen was stirred at room temperature for 1.5 h. The reaction was concentrated in vacuo to give a dark product which was purified by FCC on silica gel, eluting with ethyl acetate-hexane 1:1 to give 3-(1H-pyrazol-3-yl)benzonitrile as an oil (0.430 g, 84%), LC/MS (M+H)+: 170.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946245B2
Source datasetuspto-grants-2015_02
ORD IDord-5b98d1a0460b4ef6a2e3ea21838b20f9
Source noteuspto-grants-2015_02