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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1888714Generated: November 1, 2026

Ethyl Acetate → HCID 58047427, compound

https://huagongshe.com/reaction/1888714

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantDiphenylphosphoryl azideHCID 123414—
ReactantHCID 22481692HCID 22481692—
SolventTolueneHCID 1140—
ProductHCID 58047427HCID 5804742799.7%

Reaction Steps

To a solution of methyl 2-(1-hydroxyethyl)-1-benzofuran-6-carboxylate (1.10 g, 4.99 mmol) in toluene (20 mL) were added diphenyl azidophosphate (1.62 mL, 7.50 mmol) and DBU (1.50 mL, 9.98 mmol), and the mixture was stirred at room temperature for 2.5 hr. Ethyl acetate was added thereto, and the mixture was washed with water, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=20:1 to 2:3) to give the title compound (1.22 g, yield 88%) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08501804B2
Source datasetuspto-grants-2013_08
ORD IDord-6c988b22b153412db8cb5047933afeae
Source noteuspto-grants-2013_08