Zurück
HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 72999Erstellt: 23. Oktober 2026

Dimethylformamide → HCID 68291767, Verbindung

https://huagongshe.com/de/reaction/72999

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDimethylformamideHCID 6228—
EduktEthyl BromideHCID 6332—
EduktPotassium CarbonateHCID 11430—
Edukt4-Hydroxy-3-methylbenzoic acidHCID 68138—
LösungsmittelWaterHCID 962—
LösungsmittelDiethyl EtherHCID 3283—
ProduktHCID 68291767HCID 68291767—

Reaktionsbedingungen

Temperatur45 °C

Reaktionsschritte

To a solution of 4-hydroxy-3-methyl-benzoic acid (1.00 g, 6.57 mmol) in N,N-dimethylformamide (10 mL) was added potassium carbonate (2.73 g, 19.7 mmol) and bromoethane (3.58 g, 2.44 mL, 32.9 mmol). The reaction mixture heated at 45° C. for 48 h in a sealed tube. The reaction mixture allowed to cool then diluted with water and ether. The ether layer was washed with 50% saturated NaHCO3 (50 mL) and brine (50 mL), dried over Na2SO4, and concentrated in vacuo to provide ethyl 4-ethoxy-3-methylbenzoate as an orange-colored oil. The crude product was taken directly to the next step. ESI-MS m/z calc. 208.10994. Found 209.3 (M+1)+; Retention time: 1.78 minutes (3 min run).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08828996B2
Quelldatensatzuspto-grants-2014_09
ORD IDord-618f5b7fd05b46789297afc7e800762d
Quellennotizuspto-grants-2014_09