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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2359055Generated: November 2, 2026

Water → HCID 67260606, compound

https://huagongshe.com/reaction/2359055

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylformamideHCID 6228—
ReactantFormic acid methanolHCID 18963719—
ReactantHCID 67260951HCID 67260951—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
ProductHCID 67260606HCID 6726060649%

Reaction Conditions

Temperature120 °C

Reaction Steps

To a solution of 4-[1-isobutyl-3-(5-bromo-2-thienyl)-1H-pyrazol-4-yl]pyridine (1 eq, 0.28 mmol) in N,N-dimethylformamide (1 mL) were added zinc cyanide (0.5 eq, 0.14 mmol) and tetrakis(triphenylphosphine)palladium (0) (0.2 eq, 0.055 mmol). The resulting mixture was stirred at 120° C. in the microwave for 10 min. Water was added and the aqueous layer was extracted three times with ethyl acetate. The combined organic extracts were washed with brine, dried over MgSO4, filtered and concentrated. The residue was purified by preparative HPLC (SunFire 50×150 mm 5 μm, eau/methanol/formic acid) to afford 44 mg of 4-[1-isobutyl-3-(5-cyano-2-thienyl)-1H-pyrazol-4-yl]pyridine (49% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08685974B2
Source datasetuspto-grants-2014_04
ORD IDord-c62a221c81ae4c609c2b9a1425fbb3af
Source noteuspto-grants-2014_04