HCID 21958891, Verbindung → HCID 21958889, Verbindung

Reaktionsgleichung

[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]([N+:20]([O-])=O)=[CH:12][C:13]=1[O:14][CH2:15][C:16]([F:19])([F:18])[F:17])[C:6]([O:8][CH2:9][CH3:10])=[O:7]>[Pd].C(O)C.C(OCC)(=O)C>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]([NH2:20])=[CH:12][C:13]=1[O:14][CH2:15][C:16]([F:18])([F:17])[F:19])[C:6]([O:8][CH2:9][CH3:10])=[O:7]

Komponenten

Versuchsvorschrift

A suspension of ethyl 3-methoxy-4-(2,2,2-trifluoroethoxy)-6-nitrobenzoate (24.0 g, 74.3 mmol) and 10% palladium on carbon (3.0 g) in a mixture of ethanol (100 ml) and ethyl acetate (750 ml) was stirred under an atmosphere of hydrogen for 18 hours. Removal of the catalyst by filtration, followed by solvent evaporation in vacuo yielded ethyl 3-methoxy-4-(2,2,2-trifluoroethoxy)-6-aminobenzoate (20.2 g, 93% yield) as a pale brown solid: