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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905009Generated: October 29, 2026

Acetyl chloride → 3,3-Difluorooxolane-2,5-dione

https://huagongshe.com/reaction/905009

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetyl chlorideHCID 6367—
ReactantAcetic AnhydrideHCID 7918—
Reactant2,2-Difluorosuccinic acidHCID 69581—
Product3,3-Difluorooxolane-2,5-dioneHCID 13189243—

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 10.8 mL of acetic anhydride and 10.8 mL of acetyl chloride at 0° C. was added 10.80 g (0.070 mol) of 2,2-difluorosuccinic acid in several portions. The mixture was heated for 1 hr at 50° C. and cooled. The reaction was concentrated under reduced pressure to yield 2,2-difluorosuccinic anhydride. NMR (CDCl3) δ3.56 ppm (triplet, 2, J=15 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04421690
Source datasetuspto-grants-1983_12
ORD IDord-e426336fe26543fc847359a25070b833
Source noteuspto-grants-1983_12