Synthetic Route of 152120-54-2, A common heterocyclic compound, 152120-54-2, name is tert-Butyl (((tert-butoxycarbonyl)amino)(1H-pyrazol-1-yl)methylene)carbamate, molecular formula is C14H22N4O4, 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: Method B. The required amine hydrochloride salt 7 (1.5-6.0 equiv) and pyrazole-1-carboxamide 6a (1.0 equiv) were dissolved in acetonitrile or chloroform (ca. 1 mL per mmol) and triethylamine (twofold excess based on 7) was added drop-wise with stirring, together with anhydrous MgSO4 to dryness. After 16 h the mixture was filtered, evaporated and purified by column chromatography on silica.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Article; Al Shuhaib, Zainab; Davies, Deiniol H.; Dennis, Mark; Evans, Daniel M.; Fletcher, Matthew D.; Franken, Herjan; Hancock, Paul; Hollinshead, Jackie; Jones, Iestyn; Kaehm, Kristina; Murphy, Patrick J.; Nash, Robert; Potter, David; Rowles, Richard; Tetrahedron; vol. 70; 29; (2014); p. 4412 – 4419;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics