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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1844059Erstellt: 26. Oktober 2026

Ethyl Acrylate → Ethyl 3-chloro-4-trifluoromethylcinnamate

https://huagongshe.com/reaction/1844059

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktEthyl AcrylateHCID 8821—
EduktPotassium CarbonateHCID 11430—
Edukt4-Bromo-2-chlorobenzotrifluorideHCID 20269848—
KatalysatorDabcoHCID 9237—
Katalysatorpalladium(II) acetateHCID 167845—
LösungsmittelDimethylformamideHCID 6228—
ProduktEthyl 3-chloro-4-trifluoromethylcinnamateHCID 5383592994,3%

Reaktionsbedingungen

Temperatur110 °C

Reaktionsschritte

DABCO (86.4 mg, 0.7 mmol), Pd(OAc)2 (86.5 mg, 0.38 mmol), 4-bromo-2-chloro-1-(trifluoromethyl)benzene (5.0 g, 19.2 mmol) and ethyl acrylate (2.86 g, 28.9 mmol) were added to a stirred solution of K2CO3 (2.6 g, 19.27 mmol) in DMF degassed previously for 20 minutes. The resulting mixture was stirred for 1 hour at 110° C. The reaction was monitored by TLC (5% ethyl acetate in hexane). Purification by column chromatography on silica gel (5% ethyl acetate in hexane) afforded 5.0 g of the product (94.3% yield).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08946260B2
Quelldatensatzuspto-grants-2015_02
ORD IDord-9c27b5a5ddcd4372927a321a24559358
Quellennotizuspto-grants-2015_02