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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 56242Erstellt: 25. Oktober 2026

Potassium Carbonate → (Z)-methyl 3-(2-(3,4-difluorophenoxy)acetamido)but-2-enoate

https://huagongshe.com/reaction/56242

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktPotassium CarbonateHCID 11430—
Edukt3,4-DifluorophenolHCID 75927—
EduktMethyl 3-(2-bromoacetamido)crotonateHCID 90023822—
LösungsmittelAcetoneHCID 180—
Produkt(Z)-methyl 3-(2-(3,4-difluorophenoxy)acetamido)but-2-enoateHCID 9002332159,6%

Reaktionsschritte

To a suspension of K2CO3 (1.38 g, 10.0 mmol) in acetone (50 mL) were added 3,4-difluorophenol (0.78 g, 6.00 mmol) and (Z)-methyl-3-(2-bromoacetamido)but-2-enoate (1.18 g, 5.00 mmol) and the mixture was refluxed for 5 h. The mixture was cooled to rt and filtered and the filtrate was concentrated in vacuo. To the residue was added DCM (100 mL) and the mixture was washed with water (100 mL×2) and brine (100 mL), dried over anhydrous Na2SO4 and concentrated in vacuo. The residue was purified by a silica gel column chromatography (PE/EtOAc (V/V)=5:1) to give the title compound as a white solid (0.85 g, 59%).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS09434695B2
Quelldatensatzuspto-grants-2016_09
ORD IDord-ed3ce17cf6f94013ac2c4e9d743868d2
Quellennotizuspto-grants-2016_09