Oxalyl chloride → (2-Bromo-5-methoxy-4-methyl-phenyl)-acetic acid chloride
Reaktionsgleichung
[Br:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([O:9][CH3:10])=[CH:4][C:3]=1[CH2:11][C:12]([OH:14])=O.C(Cl)(=O)C([Cl:18])=O>ClCCl.CN(C=O)C>[Br:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([O:9][CH3:10])=[CH:4][C:3]=1[CH2:11][C:12]([Cl:18])=[O:14]Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
To a solution of (2-bromo-5-methoxy-4-methyl-phenyl)-acetic acid (149.4 mg) in dichloromethane (1.8 mL) was added oxalyl chloride (0.055 mL) followed by DMF (1 drop) uder argon. Mixture was stirred at rt for 3 h. Mixture was concentrated to dryness. Dichloroethane (ca. 10 mL) was added, and the mixture was back concentrated to dryness to obtain crude (2-bromo-5-methoxy-4-methyl-phenyl)-acetic acid chloride (151 mg).