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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1865189Generated: November 1, 2026

Triphenylphosphine → HCID 57976112, compound

https://huagongshe.com/reaction/1865189

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
Reactant5-HydroxyoxindoleHCID 76955—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
Reactant4-Piperidinol, 1-(2-methoxyethyl)- (9CI)HCID 21353752—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57976112HCID 57976112—

Reaction Steps

To an oven dried, nitrogen flushed 100 ml round bottom flask was added 5-hydroxyoxindole (10 mmol), 1-(2-methoxyethyl)-piperidin-4-ol (11 mmol), triphenylphosphine (15 mmol), Anhydrous tetrahydrofuran (35 ml) and a stirrer bar. Diethyl azodicarboxylate (15 mmol) was added slowly to the mixture and stirred at room temperature overnight. The reaction was concentrated in vacuo and flash chromatography (silica, 5% methanol in ethyl acetate). Upon concentration a reddish oil (470 mg) was obtained with a 75% purity by H-NMR and LC/MS.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07626031B2
Source datasetuspto-grants-2009_12
ORD IDord-1414e520ff8249cf8404257d3b4433ab
Source noteuspto-grants-2009_12