4-METHOXY-1H-INDAZOL-3-AMINE Chemical Properties

Melting point:

85-87°C

Boiling point:

406.3±25.0 °C(Predicted)

Density 

1.344

pka

15.19±0.40(Predicted)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

22

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

2933998090

4-METHOXY-1H-INDAZOL-3-AMINE Usage And Synthesis

Uses

4-Methoxy-1H-indazol-3-amine is used as a reactant in the preparation and structure-activity relationship of indazole arylsulfonamides as allosteric CC-chemokine receptor 4 antagonists.

Synthesis

A mixture of 2-fluoro-6-(methyloxy)benzonitrile (8a) (10 g, 66 mmol) and hydrazine hydrate (9.63 mL, 198 mmol) in n-butanol (100 mL) was heated to reflux under nitrogen for 18 h. The reaction mixture was allowed to cool, water (300 mL) was added and the organic phase was removed. The solid in the aqueous phase was collected by filtration and dried in vacuo at 40 ??C to give a white solid (0.6 g). The butanol phase was evaporated in vacuo and the residue and the aqueous mother liquors were combined and extracted using ethyl acetate (2 ?á 200 mL). The combined ethyl acetate extractions were dried (MgSO4) and evaporated in vacuo. The residue was dissolved in DCM and applied to a 100 g silica cartridge. This was eluted with cyclohexane (500 mL), cyclohexane ethyl acetate (1:1, 500 mL) and ethyl acetate (500 mL). The required fractions were combined and evaporated in vacuo to give 9a (9.92 g, 92%) as an off-white solid. MS ES + ve m/z 164 (M + H)+. 1H NMR |? (DMSO-d6) 11.35 (1H, s), 7.10 (1H, t, J = 8 Hz), 6.76 (1H, d, J = 8 Hz), 6.29 (1H, d, J = 8 Hz), 4.95 (2H, br s), 3.85 (3H, s).

4-METHOXY-1H-INDAZOL-3-AMINE(886362-07-8)Related Product Information

• 4,4'-DIMETHOXYDIPHENYLAMINE
• 4-Methoxy-N-(4-methoxyphenyl)-N-phenylbenzenamine