Pyrazole is an organic compound with the formula C3H3N2H. It is a heterocycle characterized by a 5-membered ring of three carbon atoms and two adjacent nitrogen atoms, which are in ortho-substitution. 269410-08-4, formula is C9H15BN2O2, Name is 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole. Pyrazoles are a class of compounds that have the ring C3N2 with adjacent nitrogen atoms.Notable drugs containing a pyrazole ring are celecoxib (celebrex) and the anabolic steroid stanozolol. Electric Literature of 269410-08-4.
Chung, Duy T. M.;Le, Phuc Q.;Le, Huy X.;Huynh, Tien V.;Phan, Anh N. Q.;Nguyen, Tung T.;Phan, Nam T. S. research published 《 Oxidative Nucleophilic Functionalization of Nitrobenzene and 3-Nitroacetophenones with N-H Bonds》, the research content is summarized as follows. Nitroarenes are versatile intermediates, thus found ubiquitous uses in synthesis of bio-related mols. and functional materials. Herein authors develop methods for synthesis of substituted nitroarenes benefited from oxidative nucleophilic amination of C-H bonds para to the nitro functionality. Simple base NaOH was used to mediate the coupling of N-H heterocycles and nitrobenzene. Meanwhile, 5-nitro-1-aryl-1H-indazoles were isolated from copper-mediated annulation of 3-nitroaryl Me ketones and arylhydrazines.
Electric Literature of 269410-08-4, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, also known as 4-Pyrazoleboronic acid pinacol ester , is a useful research compound. Its molecular formula is C9H15BN2O2 and its molecular weight is 194.04 g/mol. The purity is usually 95%.
4-Pyrazoleboronic acid pinacol ester is a useful reagent for Suzuki-Miyaura cross-couplings as well as Ruthenium-catalyzed asymmetric hydrogenation. 4-Pyrazoleboronic acid pinacol ester is also a useful reagent for preparing VEGF, Aurora, RHO (ROCK), Janus Kinase 2, c-MET, ALK, S-nitrsoflutathione reductase, CDC7, Acetyl-CoA carboxylase inhibitors.
4-Pyrazoleboronic acid pinacol ester is used in the preparation of Rho kinase (ROCK) inhibitors as wella s other biologically active compounds.
4-Pyrazoleboronic acid pinacol ester is an organic compound that is the product of a bifunctional coupling reaction between 4-pyrazolecarboxylic acid and pinacol. It has been shown to inhibit protein S6 kinase, which is involved in the regulation of cell growth and proliferation. This compound has also been shown to be effective against cancer cells, including those that are resistant to conventional chemotherapeutic drugs. 4-Pyrazoleboronic acid pinacol ester may also be used as a precursor for other compounds with pharmaceutical activity., 269410-08-4.
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics