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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1912889Generated: November 2, 2026

Hydrochloric Acid → HCID 86665178, compound

https://huagongshe.com/reaction/1912889

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMalononitrileHCID 8010—
ReactantSodium hydrideHCID 24758—
Reactant1-Iodo-4-(trifluoromethoxy)benzeneHCID 2777294—
CatalystHCID 178418476HCID 178418476—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86665178HCID 8666517895.9%

Reaction Steps

To a suspension of sodium hydride (2.87 g, 114 mmol) in THF (15 mL), malononitrile (4.77 mL, 76 mmol) in 2 mL of THF was added dropwise at 0° C. After the gas evolution ceased, 1-iodo-4-(trifluoromethoxy)benzene (5.92 mL, 37.8 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.797 g, 1.135 mmol) were added. This mixture was then heated at reflux under nitrogen overnight. The suspension was cooled to ambient temperature, treated with water, acidified with 1N HCl and extracted with ethyl acetate. The combined organic layers were washed with brine, dried over magnesium sulfate and filtered. The filtrate was concentrated and purified on silica gel (0˜30% ethyl acetate in hexanes) to give 8.2 g of product as a tan solid. 1H NMR (400 MHz, CDCl3) δ ppm 7.48-7.65 (m, 2H) 7.37 (d, J=8.35 Hz, 2H) 5.09 (s, 1H). MS (ESI) m/z 225.1 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609669B2
Source datasetuspto-grants-2013_12
ORD IDord-5b4d2e43cf5d4d9c904ae61d58209792
Source noteuspto-grants-2013_12