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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 14972Erstellt: 23. Oktober 2026

Hydrochloric Acid → (3-Bromo-4-methylphenyl)methanol

https://huagongshe.com/de/reaction/14972

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktHydrochloric AcidHCID 313—
EduktDiethyl EtherHCID 3283—
EduktEthyl 3-bromo-4-methylbenzoateHCID 14945865—
EduktAluminium lithium hydrideHCID 21226445—
LösungsmittelTetrahydrofuranHCID 8028—
Produkt(3-Bromo-4-methylphenyl)methanolHCID 1294738190%

Reaktionsbedingungen

Temperatur0 °C

Reaktionsschritte

Ethyl 3-bromo-4-methylbenzoate was reduced follows: 2 equivalents lithium aluminium hydride (LAH) in THF was cooled to 0° C. Ethyl 3-bromo-4-methylbenzoate in anhydrous THF (10 mL) was added slowly to the cooled solution of LAH over 10 minutes, while stirring. The mixture was stirred at room temperature for 1 hour. The reaction was cooled to 0° C. and poured into ether (100 mL). The mixture was acidified by adding 1N HCl (aqueous) dropwise over 10 minutes. Separate fractions and wash aqueous phase with ether (50 mL). The fractions were combined and dried over magnesium sulfate. Solvent removal left a clear oil. The yield was 90%. 1H NMR (Varian 300 MHz, CDCl3, shifts relative to the solvent peak at 7.24 ppm) δ 7.5 (s, 1H) 7.2 (d, 1H) 7.1 (d, 1H), 4.6 (s, 2H) 2.3 (s, 3H).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS07732444B2
Quelldatensatzuspto-grants-2010_06
ORD IDord-03c3dc8dddf7458c8f6b03aa9367ac2d
Quellennotizuspto-grants-2010_06