82560-12-1, name is 3-Amino-5-tert-butylpyrazole, belongs to pyrazoles-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. 82560-12-1
c. 2-[5-(5-Amino-3-tert-butyl-pyrazol-1-yl)-2-chloro-phenyl]-ethanol (Intermediate Rc) A suspension of Intermediate Rb (236 mg, 0.835 mmol), 3-tert-butyl-1H-pyrazole-5-amine (Fluorochem, 122 mg, 0.88 mmol), copper(I) iodide (8.00 mg, 0.04 mmol), trans-N,N’-dimethylcyclohexane-1,2-diamine (23.8 mg, 0.17 mmol) and K2CO3 (242 mg, 1.75 mmol) in degassed toluene (1 mL) was stirred at 100 C. under Ar for 3 h, and then heated to 150 C. for 5 h using microwave irradiation. The cooled solution was partitioned between EtOAc (10 mL), water (5 mL) and concentrated aqueous ammonia (5 mL). The aqueous layer was extracted with EtOAc (10 mL), then the combined organics washed with water (10 mL), brine (10 mL), dried (Na2SO4), filtered and concentrated in vacuo to leave a oil (305 mg). FCC, using 20-45% EtOAc in cyclohexane, gave the title compound as an opaque sticky gum (129 mg, 53%). LCMS (Method 3): Rt 2.80 min, m/z 294 [MH+].
Statistics shows that 82560-12-1 is playing an increasingly important role. we look forward to future research findings about 3-Amino-5-tert-butylpyrazole.