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HRID 1459692Erstellt: 26. Oktober 2026

1,2-Cyclopentanedicarboxylic acid, (1R,2R)-rel- → cis-tetrahydro-1H-cyclopenta[c]furan-1,3(4H)-dione

https://huagongshe.com/reaction/1459692

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukt1,2-Cyclopentanedicarboxylic acid, (1R,2R)-rel-HCID 727375—
LösungsmittelAcetic AnhydrideHCID 7918—
Produktcis-tetrahydro-1H-cyclopenta[c]furan-1,3(4H)-dioneHCID 10920594—

Reaktionsbedingungen

Temperatur165 °C

Reaktionsschritte

To the trans-cyclopentane-1,2-dicarboxylic acid (1.16 g, 7.33 mmol) at room temperature, was added Acetic anhydride (10 mL, ex). The reaction mixture was refluxed at about 165° C. for 14 hrs. Workup consisted of concentration in vacuo and co-evaporation with toluene three times. The crude product (1.0 g, ~100%, with a little impurity of Acetic anhydride) was given as a brown oily solid.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05854277
Quelldatensatzuspto-grants-1998_12
ORD IDord-c6c346c9c0b84a029fcbb366463e072d
Quellennotizuspto-grants-1998_12