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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 21433Erstellt: 23. Oktober 2026

Methylparaben → Methyl 4-(octadecyloxy)benzoate

https://huagongshe.com/de/reaction/21433

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktMethylparabenHCID 7456—
Edukt1-BromooctadecaneHCID 8218—
EduktPotassium CarbonateHCID 11430—
LösungsmittelMethyl Ethyl KetoneHCID 6569—
ProduktMethyl 4-(octadecyloxy)benzoateHCID 418953645,4%

Reaktionsschritte

A mixture containing methyl 4-hydroxybenzoate (45.6 g), octadecylbromide (100 g), and potassium carbonate (41.4 g) in 2-butanone (200 ml) was heated at reflux for 16 hours. The solvent was then removed until 125 ml of 2-butanone had been collected. While it was still warm, the remaining material was poured into methanol (400 ml). The product was filtered and recrystallized from 2000 ml of methanol to give methyl 4-octadecyloxybenzoate (55 g).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05424183
Quelldatensatzuspto-grants-1995_06
ORD IDord-5bd9025ada774765b81d784d3b0ccf52
Quellennotizuspto-grants-1995_06