Application of 5932-27-4, A common heterocyclic compound, 5932-27-4, name is Ethyl 1H-pyrazole-3-carboxylate, molecular formula is C6H8N2O2, 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.
A 2M aqueous sodium hydroxide solution (1.8 mL, 3.6 mmol) was added to a solution of ethyl 1 H-pyrazole-4-carboxylate (0.2g, 1.55 mmol) in ethanol (4 mL). The reaction mixture was stirred at room temperature overnight and at 80 °C for 2 further hours. The ethanol was evaporated and the mixture was neutralized to give a precipitate which was filtered and dried to give the title compound (0.089 g, 51percent) as a white solid.LRMS (m/z): 113 (M+1)+.
The synthetic route of 5932-27-4 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; ALMIRALL, S.A.; EASTWOOD, Paul Robert; GONZALEZ RODRIGUEZ, Jacob; BACH TANA, Jordi; PAGES SANTACANA, Lluis Miquel; TALTAVULL MOLL, Joan; CATURLA JAVALOYES, Juan Francisco; MATASSA, Victor Giulio; WO2011/76419; (2011); A1;,
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