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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 445889Generated: October 30, 2026

Acetic Anhydride → HCID 58566553, compound

https://huagongshe.com/reaction/445889

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantTriethylamineHCID 8471—
ReactantHCID 58566674HCID 58566674—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 58566553HCID 58566553105.1%

Reaction Conditions

Temperature0 °C

Reaction Steps

To an ice cold solution of (5-fluoro-2-methyl-2,3-dihydrobenzofuran-2-yl)methanol (854) (0.530 g, 3.15 mmol) in DCM (3.2 mL) was added triethylamine (0.878 mL, 6.3 mmol), DMAP (0.077 g, 0.63 mmol) and acetic anhydride (0.222 mL, 2.4 mmol). The solution was stirred at 0° C. for 2 h. The layers were separated and washed with water (2×5 mL), 1N HCl (5 mL), brine (100 mL) and dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by chromatography (0-10% EtOAc in hexanes) to provide the desired (5-fluoro-2,3-dihydrobenzofuran-2-yl)methyl acetate (866) (0.530 g, 80.0%) as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08476308B2
Source datasetuspto-grants-2013_07
ORD IDord-32cb20fe420c4d73ae87eee13989c6c6
Source noteuspto-grants-2013_07