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ChemicalBook CAS DataBase List 1-METHYL-1H-INDAZOL-6-YLAMINE
74728-65-7

1-METHYL-1H-INDAZOL-6-YLAMINE synthesis

4synthesis methods
-

Yield: 99%

Reaction Conditions:

with hydrogen;platinum(IV) oxide in tetrahydrofuran;ethanol under 1551.49 Torr; for 1.5 h;

Steps:

40.B
Step B: Synthesis of 1 -methyl- lH-indazol-6-amine; [0213] A mixture of l-methyl-6-nitro-lH-indazole (0.480 g, 2.71 mmol), platinum oxide (50 mg), ethanol (20 mL), and tetrahydrofuran (5 mL) was shaken under an atmosphere of hydrogen at 30 psi for 1.5 h. The mixture was filtered and the filtrate evaporated to give 1- methyl-lH-indazol-6-amine (0.395 g, 99%) as an off-white solid: 1H NMR (500 MHz, CDCl3) δ 7.80 (s, IH), 7.48 (d, J= 8.5 Hz, IH), 6.57 (dd, J= 8.5, 1.8 Hz, IH), 6.53 (s, IH), 3.94 (s, 3H), 3.86 (br s, 2H); ESI MS m/z 148 [M + H]+.

References:

Location in patent:Page/Page column 84-85

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