Introduction of a new synthetic route about C4H4N4

The synthetic route of 16617-46-2 has been constantly updated, and we look forward to future research findings.

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 16617-46-2, name is 3-Amino-1H-pyrazole-4-carbonitrile, A new synthetic method of this compound is introduced below., Safety of 3-Amino-1H-pyrazole-4-carbonitrile

To a solution of 3-amino-4-cyanopyrazole (100 g, 0.9 mol) in DMF (1 L) is added NBS (197.5 g, 1.1 mol) and mixture is stirred for 10 h at ambient temperature. The mixture is concentrated in vacuo then dissolved in EtOAc and washed with brine (8×). The organics are collected and concentrated in vacuo to afford I-70 (50 g, 29%) m/z 187.0 [M+].

The synthetic route of 16617-46-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; BENTZIEN, Joerg Martin; BERRY, Angela Kay; BOSANAC, Todd; BURKE, Michael Jason; DISALVO, Darren Todd; HORAN, Joshua Courtney; LIANG, Shuang; MAO, Can; MAO, Wang; SHEN, Yue; SOLEYMANZADEH, Fariba; ZINDELL, Renee M.; US2014/45813; (2014); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics