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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1195302Erstellt: 26. Oktober 2026

Iodine → 2-[3,4-(Methylenedioxy)phenyl]-2-butanol

https://huagongshe.com/reaction/1195302

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktIodineHCID 807—
EduktEthyl BromideHCID 6332—
EduktAmmonium ChlorideHCID 25517—
EduktAcetopiperoneHCID 76622—
EduktMagnesiumHCID 5462224—
LösungsmittelWaterHCID 962—
LösungsmittelTetrahydrofuranHCID 8028—
Produkt2-[3,4-(Methylenedioxy)phenyl]-2-butanolHCID 1900169895,9%

Reaktionsschritte

15 ml of tetrahydrofuran and a catalytic amount of iodine were added to 340 mg of magnesium ribbon to obtain a mixture. 1.59 g of bromoethane was gradually added to the mixture in a stream of nitrogen in such a way that the reaction system was mildly refluxed. The resulting mixture was heated under reflux for 30 minutes and cooled, followed by the addition of a solution of 2 g of 5-acetyl-1,3-benzodioxole in tetrahydrofuran. The obtained mixture was stirred at a room temperature for 20 minutes, followed by the addition of a saturated aqueous solution of ammonium chloride and water. The obtained mixture was extracted with ethyl acetate. The organic layer was washed with a saturated aqueous solution of common salt, dried over anhydrous magnesium sulfate and filtered. The filtrate was distilled to remove the solvent. 2.27 g of the title compound was obtained as a crude oil.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05110956
Quelldatensatzuspto-grants-1992_05
ORD IDord-45344b7308bd4bdf8758bd4bd4efbdd3
Quellennotizuspto-grants-1992_05