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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 431415Erstellt: 26. Oktober 2026

Pyridine → alpha-[Acetoxy(5-norbornen-2-yl)methyl]-gamma-butyrolactone

https://huagongshe.com/reaction/431415

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktPyridineHCID 1049—
EduktAcetic AnhydrideHCID 7918—
Edukt3-[(Bicyclo[2.2.1]hept-5-en-2-yl)(hydroxy)methyl]oxolan-2-oneHCID 18345689—
Katalysator4-(Dimethylamino)pyridineHCID 14284—
LösungsmittelWaterHCID 962—
Produktalpha-[Acetoxy(5-norbornen-2-yl)methyl]-gamma-butyrolactoneHCID 1876107298%

Reaktionsschritte

To 127 g of pyridine were added 208 g of α-[hydroxy(5-norbornen-2-yl)methyl]-γ-butyrolactone (Monomer 1), 123 g of acetic anhydride and 6 g of 4-dimethylaminopyridine. Reaction was effected at 25° C. for 10 hours. Water, 30 g, was added to the reaction mixture to stop reaction, followed by hexane extraction. The organic layer was washed with water, dried over anhydrous sodium sulfate, filtered, and concentrated in vacuum. Purification by silica gel column chromatography yielded 245 g (yield 98%) of α-[acetoxy(5-norbornen-2-yl)methyl]-γ-butyrolactone.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS06660448B2
Quelldatensatzuspto-grants-2003_12
ORD IDord-77154b4f71174c1f8296e946b2bfb9b2
Quellennotizuspto-grants-2003_12