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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629926Generated: October 27, 2026

Tetrahydrofuran → 4-[1-(2,2-Dimethylpropyl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-5-yl]butanenitrile

https://huagongshe.com/reaction/629926

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
Reactant2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 11155794—
Reactant5-chloro-1-(cyclopropylmethyl)-3-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneHCID 77230827—
ReactantHCID 178511034HCID 178511034—
Catalystpalladium(II) acetateHCID 167845—
Solvent1,4-DioxaneHCID 31275—
Product4-[1-(2,2-Dimethylpropyl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-5-yl]butanenitrileHCID 71136789—

Reaction Steps

To a stirred solution of 1-4 (0.40 g, 1.58 mmol), Pd(OAc)2 (0.02 g, 0.08 mmol), xphos (0.074 g, 0.16 mmol) in dioxane (12 mL) was added 3-cyanopropylzinc bromide 0.5M solution in THF (12.6 mL, 6.3 mmol) and the resulting mixture was microwave irradiated for 30 minutes at 100° C. The reaction was allowed to cool and partitioned between ethyl acetate and water. The organic phase was concentrated and flash column separation using a 0-60% ethyl acetate/hexane gradient gave 38-1. (0.42 g, 94%). LRMS (ES) (M+H)+: observed=287.2, calculated=287.4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315518B2
Source datasetuspto-grants-2016_04
ORD IDord-d48249a7ebab4037803046956120fdf4
Source noteuspto-grants-2016_04