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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 26449Erstellt: 24. Oktober 2026

Water → 2-(p-Isobutylphenyl)propionic acid benzyl ester

https://huagongshe.com/de/reaction/26449

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktWaterHCID 962—
EduktBenzyl ChlorideHCID 7503—
EduktIbuprofen, Sodium SaltHCID 5338317—
LösungsmittelDimethylformamideHCID 6228—
Produkt2-(p-Isobutylphenyl)propionic acid benzyl esterHCID 1042466286,8%

Reaktionsbedingungen

Temperatur90 °C

Reaktionsschritte

To a mixture of 2.28 g of 2-(p-isobutylphenyl)propionic acid sodium salt in 20 ml of dimethylformamide was added 2.52 g of benzyl chloride and the whole was heated at 90° C. for 3 hours. After the reaction was complete, the solvent was removed by distillation under reduced pressure to leave a residue, to which was added water. The resulting mixture was extracted with ether and the extract was dehydrated. The ether was removed by distillation to give an oily product. Distillation of this product under reduced pressure yielded 2.57 g of 2-(p-isobutylphenyl)propionic acid benzyl ester as a colorless oil, boiling at 108°-110° C./0.1 mmHg. Analysis-Calculated for C20H24O2 : C, 81.04; H, 8.16. Found: C, 80.92; H, 8.02.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04150137
Quelldatensatzuspto-grants-1979_04
ORD IDord-4f232384f543447b942e3eaf5c6ef308
Quellennotizuspto-grants-1979_04