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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2206296Generated: October 31, 2026

Malononitrile → HCID 69085959, compound

https://huagongshe.com/reaction/2206296

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalononitrileHCID 8010—
ReactantDabcoHCID 9237—
Reactant3-Bromo-4,5-dimethoxybenzaldehydeHCID 81379—
ReactantHCID 178515325HCID 178515325—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 69085959HCID 6908595970%

Reaction Conditions

Temperature80 °C

Reaction Steps

3-Hydroxyisoquinoline (638 mg, 4.4 mmol), 5-bromo-3,4-dimethoxy-benzaldehyde (1.077 mg, 4.4 mmol) and malononitrile (295 mg, 4.4 mmol) were taken in 40 ml ethanol at room temperature, charged with DABCO (48.4 μl, 1.46 mmol) and then stirred at 80° C. under LC-MS control for 24 h. The reaction mixture was cooled down to room temperature, diluted with water to about 100 ml and the precipitates were collected by filtration, washed well with 50% aqueous ethanol and dried under vacuum to yield the title compound (1.35 g, 3.08 mmol, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09371333B2
Source datasetuspto-grants-2016_06
ORD IDord-75be51b1d5704b73bc7a19380f7d762b
Source noteuspto-grants-2016_06