Pyrazoles are synthesized by the reaction of α,β-unsaturated aldehydes with hydrazine and subsequent dehydrogenation. 2075-46-9, formula is C3H3N3O2, Name is 4-Nitro-1H-pyrazole. Substituted pyrazoles are prepared by condensation of 1,3-diketones with hydrazine (Knorr-type reactions). For example, acetylacetone and hydrazine gives 3,5-dimethylpyrazole. Formula: C3H3N3O2.
Wan, Zhaohua;Wang, Dan;Yang, Zixuan;Zhang, Heng;Wang, Shengchun;Lei, Aiwen research published 《 Electrochemical oxidative C(sp3)-H azolation of lactams under mild conditions》, the research content is summarized as follows. An electrochem. oxidative direct C(sp3)-H azolation of lactams was reported under metal catalyst-free and external chem. oxidant-free conditions. This electrochem. C(sp3)-H/N-H coupling was characterized by its broad substrate scope of azoles and lactams under mild conditions at room temperature Mechanistic studies suggested that the reaction possibly involves a radical process. Moreover, the site selectivity was explained by DFT calculations More meaningfully, a gram-scale synthesis method of flow electrochem. was employed to show the scaled-up applicability of this transformation.
2075-46-9, 4-Nitro-1H-pyrazole, also known as 4-Nitropyrazole, is a useful research compound. Its molecular formula is C3H3N3O2 and its molecular weight is 113.08 g/mol. The purity is usually 95%.
4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson’s disease., Formula: C3H3N3O2
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics