Electric Literature of 632365-54-9, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 632365-54-9, name is Methyl 5-amino-1H-pyrazole-3-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.
With stirring, a mixture of 10 g (0.037 mol) of dimethyl(2-chloro-4-cyanophenyl)malonate, 5.2 g (0.037 mol) of methyl 5-amino-1H-pyrazole-3-carboxylate and 7.6 g (0.041 mol) of tri-n-butyl-amine was heated at 180 C. for 6 hours. The methanol released during the reaction was continuously distilled off. The reaction mixture was then concentrated under reduced pressure. This gave 12.8 g (100% of theory) of methyl 5,7-dihydroxy-6-(2-chloro-4-cyanophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate. The product was used for further syntheses without additional purification.
The chemical industry reduces the impact on the environment during synthesis Methyl 5-amino-1H-pyrazole-3-carboxylate. I believe this compound will play a more active role in future production and life.
Reference:
Patent; Gebauer, Olaf; Gayer, Herbert; Heinemann, Ulrich; Herrmann, Stefan; Hillebrand, Stefan; Elbe, Hans-Ludwig; Ebbert, Ronald; Wachendorff-Neumann, Ulrike; Dahmen, Peter; Kuck, Karl-Heinz; US2005/187224; (2005); A1;,
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