[CH2:1]([O:3][C:4]1[CH:12]=[CH:11][C:7]([C:8]([OH:10])=[O:9])=[CH:6][CH:5]=1)[CH3:2].[Br:13]Br>C(Cl)(Cl)Cl>[Br:13][C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][C:4]=1[O:3][CH2:1][CH3:2])[C:8]([OH:10])=[O:9]To a solution of 4ethoxybenzoic acid (3.6 g, 0.022 mol) in chloroform (60 ml) was added bromine (1.13 ml, 0.022 mol) in chloroform (20 ml) dropwise. After stirring overnight at room temperature the precipitate was filtered off and dried to afford the title compound as a white solid.
Wird geladen…