[N+:1]([C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][C:13]=1Cl)[C:7]([O:9][CH3:10])=[O:8])([O-:3])=[O:2].[CH3:15][O-:16].[Na+]>CO>[N+:1]([C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][C:13]=1[O:16][CH3:15])[C:7]([O:9][CH3:10])=[O:8])([O-:3])=[O:2]Methyl 3-nitro-4-chlorobenzoate (COMPOUND XIII) (see above for synthesis of 4-chloro-anti-CG) (1 equivalent) is treated with sodium methoxide (1.1 equivalent) in methanol with heating to produce the methyl 3-nitro-4-methoxybenzoate (COMPOUND XIV) which is purified by column chromatography and/or crystallization.
Wird geladen…