In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 19959-77-4 as follows. Computed Properties of C9H9N3
A 5mL ethanol solution of L (0.1mmol, 15.9mg), hydrazine hydrate (0.1mmol, 5mg) and Et3N (0.1mmol, 14mul) was mixed with a 5mL ethanol solution of NiCl2·6H2O (0.05mmol, 11.9mg), and the resulting mixture was then stirred for 15min to obtain a light-green solution. This resulting solution was filtered and left to evaporate for three days, giving rise to light-blue block crystals of 2. The resulting crystals were washed with n-hexane 2?3 times, then dried in vacuum. Yield: 26.4mg (53%), M. p. >300C. Anal. Calc. for C18H24Cl2N7NiO2 (FW, 500.05): C, 43.37; H, 4.86; N, 19.68. Found: C, 43.54; H, 4.96; N, 19.18%. Selected IR data (cm-1, KBr): 3350 (b, m), 3250 (b, s), 3130 (s), 3066 (s), 2969 (s), 2863 (s), 1610 (m) (nu(C=N)), 1573 (m) (nu(C=C)), 1443 (s) (delta(CH3)), 1304 (m) (nu(C-N)), 1256 (w), 1116 (w), 1054 (w), 1021(w), 985 (m), 789 (s).
According to the analysis of related databases, 19959-77-4, the application of this compound in the production field has become more and more popular.
Reference:
Article; Zhu, Guang-Zhou; Xing, Bei-Bei; Yang, Feng-Lei; Li, Xiu-Ling; Polyhedron; vol. 81; (2014); p. 705 – 714;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics