Cl[C:2]1[CH:10]=[CH:9][C:5]([C:6](O)=O)=[C:4]([Cl:11])[C:3]=1C.[CH:13]([O-:18])([O-])[O:14][CH2:15][CH3:16].[ClH:19]>C(O)C>[Cl:11][C:4]1[C:5]([CH3:6])=[C:9]([CH:10]=[CH:2][C:3]=1[Cl:19])[C:13]([O:14][CH2:15][CH3:16])=[O:18]12.0 g. (0.058 mol.) of dichloro-3-methylbenzoic acid and 75 ml. of ethyl orthoformate in 100 ml. of ethanol was saturated with hydrogen chloride and refluxed to give ethyl 3,4-dichloro-2-methylbenzoate.
Wird geladen…