Application of 118430-74-3, These common heterocyclic compound, 118430-74-3, name is 3-Cyclopropyl-1-methyl-1H-pyrazol-5-amine, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
General procedure: A 0.1 M NaClO4solution (50 ml) in MeCN containing NH4SCN (6 mmol, 0.46 g) and indole (1a)(2 mmol, 0.24 g) was placed in a glass cell with coaxally positioned Ptelectrodes (San. = 26 cm2, Scat. = 10 cm2). The electrolysis was performed atE = 0.70 V vs SCE (CPE) or at j = 2.5 mA/cm2 (GE). After passing of 2.1 F ofelectricity in CPE (or 2.5 F in GE) calculated on the basis of 1 F/NH4SCN mol, theelectrolysis was terminated and the MeCN was distilled off. H2O (10 ml) wasadded and the residue was extracted with CH2Cl2 (4 25 ml). The extractswere combined, dried over anhydrous Na2SO4, filtered and the solvent wasdistilled off. The residue was purified by column chromatography on silica gel(eluent-a mix of light petroleum and EtOAc with a buildup of the volumefraction of the latter from 5% to 20%) to afford pure 3-thiocyanato-1H-indole
Statistics shows that 3-Cyclopropyl-1-methyl-1H-pyrazol-5-amine is playing an increasingly important role. we look forward to future research findings about 118430-74-3.
Reference:
Article; Kokorekin, Vladimir A.; Sigacheva, Vera L.; Petrosyan, Vladimir A.; Tetrahedron Letters; vol. 55; 31; (2014); p. 4306 – 4309;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics