3-Methyl-6-nitro-1-tosyl-1H-indazole → 3-methyl-1-(toluene-4-sulfonyl)-1H-indazol-6-ylamine

反応式

[CH3:1][C:2]1[C:10]2[C:5](=[CH:6][C:7]([N+:11]([O-])=O)=[CH:8][CH:9]=2)[N:4]([S:14]([C:17]2[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=2)(=[O:16])=[O:15])[N:3]=1.[H][H]>CO.[Pd]>[CH3:1][C:2]1[C:10]2[C:5](=[CH:6][C:7]([NH2:11])=[CH:8][CH:9]=2)[N:4]([S:14]([C:17]2[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=2)(=[O:16])=[O:15])[N:3]=1

参加物

実験手順

3-Methyl-6-nitro-1-(toluene-4-sulfonyl)-1H-indazole (750 mg, 2.26 mmol) was dissolved in 30 ml of methanol at room temperature. 10% Palladium on Carbon (200 mg) was added and the mixture was stirred under a balloon of hydrogen overnight. The mixture was filtered through celite and the filtrate was concentrated in vacuo. The residue was purified by flash chromatography (gradient 9:1 to 4:1 Hexanes/Ethyl Acetate) to give 3-methyl-1-(toluene-4-sulfonyl)-1H-indazol-6-ylamine (265 mg, 38.9%) as a light tan crystalline solid.