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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 572158Generated: October 26, 2026

Ethanol → HCID 86704969, compound

https://huagongshe.com/reaction/572158

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTriphenylphosphineHCID 11776—
ReactantDiisopropyl azodicarboxylateHCID 5363146—
ReactantHCID 178419484HCID 178419484—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86704969HCID 86704969—

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of ethanol (0.118 ml) and triphenylphosphine (530 mg) in THF (3 ml) was added 3-bromo-1H-pyrazolo[4,3-b]pyridine (200 mg), and the mixture was heated at 50° C. A toluene solution (1.9 M, 1.06 ml) of DIAD was added dropwise at 50° C., and the mixture was stirred for 30 min. The reaction mixture was cooled to room temperature, water was added, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (71 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029388B2
Source datasetuspto-grants-2015_05
ORD IDord-93a526a934024906b1ad99b4fff6a62b
Source noteuspto-grants-2015_05