Electric Literature of 6825-71-4, 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. 6825-71-4, name is Ethyl 3,5-diamino-1H-pyrazole-4-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.
Example 123 Compound 142 was prepared in 3 steps from ethyl 3,5-diamino-1H-pyrazole-4-carboxylate in the following manner: Ethyl 3,5-diamino-1H-pyrazole-4-carboxylate (1.0 eq, 2.8 mmol) was dissolved in 6 mL N,N-dimethylformamide. 4,4-Dimethyoxy-2-butanone (2.0 eq) was added and the reaction was heated to 110 C. for 1 h, after which acetic acid (1.0 eq) was added and the reaction was heated for an additional 2 h. The mixture was allowed to cool and was neutralized with saturated sodium bicarbonate, transferred to a separatory funnel and extracted with 1* ethyl acetate and 2* methylene chloride. The organic layers were combined, dried over MgSO4 and concentrated until there was <20 mL of solvent remaining. Excess hexanes were added until a solid crashed out. The resulting solid was collected via vacuum filtration to provide the desired pyrazolopyrimidine. This solid (0.59 mmol, 1.0 eq) was then dissolved in ethanol/water (10 mL, 1:1 v/v). The chemical industry reduces the impact on the environment during synthesis Ethyl 3,5-diamino-1H-pyrazole-4-carboxylate. I believe this compound will play a more active role in future production and life.