Pyrimidines

The systematic study of pyrimidines began in 1884 with Pinner, who synthesized derivatives by condensing ethyl acetoacetate with amidines. Pinner first proposed the name “pyrimidin” in 1885. 2927-71-1, formula is C4HCl2FN2, Name is 2,4-Dichloro-5-fluoropyrimidine. The parent compound was first prepared by Gabriel and Colman in 1900, by conversion of barbituric acid to 2,4,6-trichloropyrimidine followed by reduction using zinc dust in hot water. Recommanded Product: 2,4-Dichloro-5-fluoropyrimidine.

Bandarage, Upul K.;Clark, Michael P.;Perola, Emanuele;Gao, Huai;Jacobs, Marc D.;Tsai, Alice;Gillespie, Jeffery;Kennedy, Joseph M.;Maltais, Francois;Ledeboer, Mark W.;Davies, Ioana;Gu, Wenxin;Byrn, Randal A.;Nti Addae, Kwame;Bennett, Hamilton;Leeman, Joshua R.;Jones, Steven M.;O’Brien, Colleen;Memmott, Christine;Bennani, Youssef;Charifson, Paul S. research published 《 Novel 2-Substituted 7-Azaindole and 7-Azaindazole Analogues as Potential Antiviral Agents for the Treatment of Influenza》, the research content is summarized as follows. JNJ-63623872 (2) is a first-in-class, orally bioavailable compound that offers significant potential for the treatment of pandemic and seasonal influenza. Early lead optimization efforts in our 7-azaindole series focused on 1,3-diaminocyclohexyl amide and urea substitutions on the pyrimidine-7-azaindole motif. In this work, we explored two strategies to eliminate observed aldehyde oxidase (AO)-mediated metabolism at the 2-position of these 7-azaindole analogs. Substitution at the 2-position of the azaindole ring generated somewhat less potent analogs, but reduced AO-mediated metabolism Incorporation of a ring nitrogen generated 7-azaindazole analogs that were equipotent to the parent 2-H-7-azaindole, but surprisingly, did not appear to improve AO-mediated metabolism Overall, we identified multiple 2-substituted 7-azaindole analogs with enhanced AO stability and we present data for one such compound (12) that demonstrate a favorable oral pharmacokinetic profile in rodents. These analogs have the potential to be further developed as anti-influenza agents for the treatment of influenza.

Recommanded Product: 2,4-Dichloro-5-fluoropyrimidine, 2,4-Dichloro-5-fluoropyrimidine is a useful research compound. Its molecular formula is C4HCl2FN2 and its molecular weight is 166.97 g/mol. The purity is usually 95%.
2,4-Dichloro-5-fluoropyrimidine is an aromatic hydrocarbon that has been shown to inhibit the growth of mouse tumor cells in vitro. It also inhibits the production of amines by reacting with industrial chemicals and sodium carbonate. This compound has potent inhibitory activity against autoimmune diseases and cytotoxic potency on mcf-7 cells. Furthermore, 2,4-Dichloro-5-fluoropyrimidine has been shown to have a chlorinating effect on cancer cells., 2927-71-1.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Computed Properties of 1722-12-9.

Ban, Yong-Liang;You, Long;Wang, Tao;Wu, Li-Zhu;Liu, Qiang research published 《 Metallaphotoredox Dearomatization of Indoles by a Benzamide-Empowered [4 + 2] Annulation: Facile Access to Indolo[2,3-c]isoquinolin-5-ones》, the research content is summarized as follows. Herein, a metallaphotoredox catalysis protocol enabling the efficient dearomatization of indoles I (R = quinolin-8-yl, (tert-butoxy)carbonyl; R¹ = H, Me, OMe, hydroxymethyl, (acetyloxy)methyl; R² = H, F, 2-oxocyclohexyl, morpholin-4-yl, etc.; R³ = H, Me; R⁴ = H, Me) utilizing readily available N-quinolyl benzamides II (R⁵ = Ph, thiophen-2-yl, 2H-1,3-benzodioxol-5-yl, etc.) under environmentally benign reaction conditions was reported. This reaction allows regioselective C-2 and C-3 dual functionalization of indoles and provides a mild, straightforward, and high atom- and step-economical approach to produce a diverse array of indolo[2,3-c]isoquinolin-5-ones e.g., III by merging cobalt catalysis with photocatalysis. The practicality and effectiveness of this synergistic protocol were illustrated by a gram-scale experiment Preliminary mechanistic studies indicate that a single-electron transfer process is involved during the catalytic cycle. In addition, a catalytically competent organometallic Co(bzac)₃ has been identified through X-ray crystallog., ¹H NMR, ¹³C NMR, and ESI-HRMS.

Computed Properties of 1722-12-9, 2-Chloropyrimidine is a monochlorinated pyrimidine with plant growth regulating activity. Chloropyrimidine is a useful reagent in the preparation of antivirals and other biologically active compounds.
2-Chloropyrimidine undergoes cobalt-catalyzed cross-coupling reaction with aryl halides.
2-Chloropyrimidine is a molecule that can be synthesized by the oxidation of pyrimidine with hydrogen peroxide and hydrochloric acid. The reaction proceeds through an electrochemical process in which the oxidation catalyst is a platinum electrode. This reaction is catalyzed by the nucleophilic attack of malonic acid on the chloropyrimidine at the methylene group. This efficient method for making 2-chloropyrimidine has been applied to synthesize aryl halides, including phenyl chloropyrimidine and pyridyl chloropyrimidine, from their corresponding chloride and bromide precursors. The fluorescence properties of 2-chloropyrimidine have been studied in coordination chemistry, where it forms complexes with metal ions such as Mn2+. In this study, it was found that adsorption mechanisms are dependent on molecular size, charge density, kinetic energy, and adsorbent surface area., 1722-12-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. Recommanded Product: 2-Chloropyrimidine.

Bagherzadeh, Nastaran;Sardarian, Ali Reza;Eslahi, Hassan research published 《 Sustainable and recyclable magnetic nanocatalyst of 1,10-phenanthroline Pd(0) complex in green synthesis of biaryls and tetrazoles using arylboronic acids as versatile substrates》, the research content is summarized as follows. A magnetic nanocatalyst was purveyed as a heterogeneous recoverable palladium-based catalyst anchored on green, sustainable and phosphine free support. Resulted Fe3O4@SiO2-Phen-Pd(0) nanocatalyst bearing powerful phenanthroline ligand was thoroughly characterized by physicochem. approaches like UV-vis, FT-IR, EDX, XRD, TGA, ICP, VSM, DLS, FESEM, and TEM analyses. After finding trustable data, the obtained magnetic catalyst was considered to be applied in the Suzuki-Miyaura type C-C couplings and getting corresponding tetrazoles using arylboronic acid derivatives as alternate precursors of aromatic halides and stupendous data were observed

Recommanded Product: 2-Chloropyrimidine, 2-Chloropyrimidine is a monochlorinated pyrimidine with plant growth regulating activity. Chloropyrimidine is a useful reagent in the preparation of antivirals and other biologically active compounds.
2-Chloropyrimidine undergoes cobalt-catalyzed cross-coupling reaction with aryl halides.
2-Chloropyrimidine is a molecule that can be synthesized by the oxidation of pyrimidine with hydrogen peroxide and hydrochloric acid. The reaction proceeds through an electrochemical process in which the oxidation catalyst is a platinum electrode. This reaction is catalyzed by the nucleophilic attack of malonic acid on the chloropyrimidine at the methylene group. This efficient method for making 2-chloropyrimidine has been applied to synthesize aryl halides, including phenyl chloropyrimidine and pyridyl chloropyrimidine, from their corresponding chloride and bromide precursors. The fluorescence properties of 2-chloropyrimidine have been studied in coordination chemistry, where it forms complexes with metal ions such as Mn2+. In this study, it was found that adsorption mechanisms are dependent on molecular size, charge density, kinetic energy, and adsorbent surface area., 1722-12-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The pyrimidine ring system has wide occurrence in nature as substituted and ring fused compounds and derivatives, including the nucleotides cytosine, thymine and uracil, thiamine (vitamin B1) and alloxan. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. It is also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Electric Literature of 109-12-6.

Bagheri, Sotoodeh research published 《 Theoretical study of hydrogen bonds and electronic properties in hexagonal arrangements composed of self-assembled DNA analogues》, the research content is summarized as follows. Abstract: Aminopyrimidine, triaminopyrimidine, and cyanuric acid as artificial bases can be used to design and prepare multi-stranded DNA structures. In this manuscript, we theor. investigate the stability of hydrogen-bonded hexagonal structures arising from the self-assembly of aminopyrimidine and cyanuric acid, as well as triaminopyrimidine and cyanuric acid in gas phase and in water. The influence of hydrogen bonds on the stability of hexagonal arrangements is examined by atoms in mols. and natural bond orbital analyses. Moreover, the mutual effects of hydrogen bonds on each other are also evaluated in the hexagonal structures using cooperative energy. Whereas the self-assembly of the hydrogen-bonded hexagonal arrangements may be considered to form new nanostructures, metal sensors, and ion channels, some electronic properties such as band gap, first ionization energy, electron affinity, electronegativity, electronic chem. potential, electrophilicity index, global chem. hardness, and chem. softness are theor. estimated at M06-2X/6-311++G(d,p) level.

Electric Literature of 109-12-6, 2-Aminopyrimidine is a useful research compound. Its molecular formula is C4H5N3 and its molecular weight is 95.1 g/mol. The purity is usually 95%.
2-Aminopyrimidine is an organic compound that belongs to the group of pyridines. It has been shown to have antimicrobial, antitumor, and antiviral properties. 2-Aminopyrimidine has been used as a fungicide and herbicide in horticulture and agriculture, respectively. The molecular geometry of this molecule is octahedral with coordination geometry C2v. This chemical binds to the BCR-ABL kinase receptor and inhibits its activity by competitive inhibition of ATP binding. 2-Aminopyrimidine has been shown to have a hematologic response in vivo models and in vitro assays. It also has anti-inflammatory effects when it is taken orally or applied topically., 109-12-6.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

The nomenclature of pyrimidines is straightforward. However, like other heterocyclics, tautomeric hydroxyl groups yield complications since they exist primarily in the cyclic amide form. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. For example, 2-hydroxypyrimidine is more properly named 2-pyrimidone. A partial list of trivial names of various pyrimidines exists. Computed Properties of 4595-59-9.

Bag, Sukdev;Jana, Sadhan;Pradhan, Sukumar;Bhowmick, Suman;Goswami, Nupur;Sinha, Soumya Kumar;Maiti, Debabrata research published 《 Imine as a linchpin approach for meta-C-H functionalization》, the research content is summarized as follows. An temporary directing group (TDG) for meta-C-H functionalization via reversible imine formation were reported. By overruling facile ortho-C-H bond activation by imine-N atom, a suitably designed pyrimidine-based TDG successfully delivered selective meta-C-C bond formation. Application of this temporary directing group strategy for streamlining the synthesis of complex organic mols. without any necessary pre-functionalization at the meta position were explored.

Computed Properties of 4595-59-9, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., 4595-59-9.

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia