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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1890539Generated: October 29, 2026

3-Bromothieno[2,3-b]pyridine → Thieno[2,3-b]pyridine-3-carbonitrile

https://huagongshe.com/reaction/1890539

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Bromothieno[2,3-b]pyridineHCID 289926—
ReactantHCID 178418546HCID 178418546—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
ProductThieno[2,3-b]pyridine-3-carbonitrileHCID 21828305—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a stirred solution of 3-bromothieno[2,3-b]pyridine (J-3) (107 mg, 0.5 mmol) and CuCN (60 mg, 0.67 mmol) in anhydrous DMF (4 mL) was added Pd(PPh3)4 (57 mg, 0.05 mmol). The reaction was degassed with nitrogen and stirred at 120° C. for 5 h. Then the cooled mixture was concentrated and purified by chromatography to afford the title compound. MS (m/z): 161 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507487B2
Source datasetuspto-grants-2013_08
ORD IDord-1dd9ac8032c249518067f2ea150d3289
Source noteuspto-grants-2013_08