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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1976861Generated: October 25, 2026

Isopropanol → Propan-2-yl 1-oxo-1,3-dihydro-2-benzofuran-5-carboxylate

https://huagongshe.com/reaction/1976861

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropanolHCID 3776—
ReactantEthyl 1,3-dihydro-1-oxoisobenzofuran-5-carboxylateHCID 90088—
ProductPropan-2-yl 1-oxo-1,3-dihydro-2-benzofuran-5-carboxylateHCID 21999398—

Reaction Conditions

Temperature0 °C

Reaction Steps

Method B): 5-Ethoxycarbonylphthalid (52 g, 0.25 mole) is suspended in 2-propanol (1000 mL). Ti(iPro)4 (38 g, 0.14 mole) is added and the mixture is refluxed for 3 hours. The reaction mixture is cooled to 0° C. and the crystals are filtered off and washed with cold 2-propanol (70 mL). Yield: 47 g, 85%. DSC onset 144° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06229026B1
Source datasetuspto-grants-2001_05
ORD IDord-26db2d4fb6a9445cbba1b2222de1fe3e
Source noteuspto-grants-2001_05