Pyrimidines

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). Quality Control of 1722-12-9.

Hamada, Shohei;Sugimoto, Koichi;Elboray, Elghareeb E.;Kawabata, Takeo;Furuta, Takumi research published 《 Chemoselective Oxidation of p-Methoxybenzyl Ethers by an Electronically Tuned Nitroxyl Radical Catalyst》, the research content is summarized as follows. The oxidation of p-methoxy benzyl (PMB) ethers e.g., 1-methoxy-4-[(3-phenylpropoxy)methyl]benzene was achieved using nitroxyl radical catalyst I, which contains electron-withdrawing ester groups adjacent to the nitroxyl group. The oxidative deprotection of the PMB moieties on the hydroxy groups was observed upon treatment of I with 1 equiv of the co-oxidant Ph iodonium bis(trifluoroacetate) (PIFA). The corresponding carbonyl compounds e.g., 3-phenylpropanal were obtained by treating the PMB-protected alcs., e.g., 3-phenylpropan-1-ol, with I and an excess of PIFA.

Quality Control 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

Pyrimidine is a nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. Pyrimidine also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Name: Pyrimidin-2-amine.

Ham, Won Seok;Choi, Hoonchul;Zhang, Jianbo;Kim, Dongwook;Chang, Sukbok research published 《 C2-Selective, Functional-Group-Divergent Amination of Pyrimidines by Enthalpy-Controlled Nucleophilic Functionalization》, the research content is summarized as follows. A synthetic platform for site-selective C-H functionalization that affords pyrimidinyl iminium salt intermediates, which then can be transformed into various amine products I (R = azanyl, 5-(trifluoromethyl)-1,2,3,4-tetrahydropyridin-1-yl, methylaminyl, etc.; R¹ = H, Ph) in situ. was described. Mechanism-based reagent design allowed for the C2-selective amination of pyrimidines II, opening the new scope of site-selective heteroaryl C-H functionalization. This method is compatible with a broad range of pyrimidines II with sensitive functional groups, and can access complex aminopyrimidines I in high selectivity.

Name: Pyrimidin-2-amine, 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

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). COA of Formula: C4H5N3.

Haghbeen, Faheimeh;Ghorbanian, Nargess;Hajatpour, Golnaz;Amirzakaria, Javad Zamani;Eshghi, Hossein;Haghbeen, Kamahldin research published 《 Introducing a potential lead structure for the synthesis of more specific inhibitors of tyrosinases and catechol oxidases》, the research content is summarized as follows. Based on tyrosinase inhibition science, two pyrimidine derivatives were designed and studied. Docking of 2-dibenzylamine-5-hydroxy pyrimidine (dba5HP) and 2-benzylamino-5-hydroxy pyrimidine (ba5HP) on mushroom tyrosinase (MT) showed that the former could not occupy MT active site pocket, while ba5HP could do so (Moldock score = – 63.95). MD simulation revealed that the complex of ba5HP-MT reached stability < 30 ns. In silico biocompatibility examinations predicted high permeability, good bioavailability, low toxicity, and synthetic accessibility of 1.59 for ba5HP with high probability for CYP-mediated metabolism Subsequently, both compounds were synthesized in good yields. Kinetics studies proved that, unlike dba5HP, ba5HP could strongly inhibit MT competitively (IC₅₀ = 32.28, K_i = 11.32μM). Considering the facile synthesis, potential for structural modifications, and passing most of the lead-likeness filters, it seems likely that ba5HP plays key roles in the syntheses of novel depigmentation medicines as well as more specific inhibitors for various tyrosinases and polyphenol oxidases.

COA of Formula: C4H5N3, 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 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. COA of Formula: C4H3ClN2.

Gupta, Shiv Shankar;Manisha;Kumar, Rakesh;Dhiman, Ankit Kumar;Sharma, Upendra research published 《 Predictable site-selective functionalization: Promoter group assisted para-halogenation of N-substituted (hetero)aromatics under metal-free condition》, the research content is summarized as follows. Regioselective para-C-H halogenation of N-pyrimidyl (hetero)aromatics (such as 5-bromo-1-(pyrimidin-2-yl)indoline, N-(4-bromophenyl)pyrimidin-2-amine, 6-bromo-1-(pyrimidin-2-yl)-1,2,3,4-tetrahydroquinoline, etc.) through SEAr (electrophilic aromatic substitution) type reaction is disclosed. SEAr type reaction has been utilized for the C5-bromination of indolines (para-selective) (such as 1-(pyrimidin-2-yl)indoline, 6-fluoro-1-pyrimidin-2-yl-2,3-dihydro-1H-indole, 1-pyrimidin-2-yl-2,3-dihydro-1H-indole-2-carboxylic acid Et ester, etc.) with N-bromosuccinimide under metal and additive-free conditions in good to excellent yields. The developed methodol. is also applicable for iodination and challenging chlorination. The pyrimidyl group is identified as a reactivity tuner that also controls the regioselectivity. The present method is also applicable for selective halogenation of aniline, pyridine, indole, oxindole, pyrazole, tetrahydroquinoline, isoquinoline, and carbazole. DFT studies such as Fukui nucleophilicity and natural charge maps also support the observed p-selectivity. Post-functionalization of the title compound into the corresponding arylated, olefinated and dihalogenated products (5-phenyl-1-(pyrimidin-2-yl)indoline, 5-bromo-7-chloro-1-(pyrimidin-2-yl)indoline, (E)-1-(pyrimidin-2-yl)-5-styrylindoline) is achieved in a one-pot, two step fashion. Late-stage C-H bromination was also executed on drug/natural mols. (harmine, etoricoxib, clonidine, and chlorzoxazone) to demonstrate the applicability of the developed protocol.

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., COA of Formula: C4H3ClN2

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. 2927-71-1, formula is C4HCl2FN2, Name is 2,4-Dichloro-5-fluoropyrimidine. 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. Electric Literature of 2927-71-1.

Guo, Weikai;Xing, Yajing;Zhang, Qiansen;Xie, Jiuqing;Huang, Dongxia;Gu, Haijun;He, Peng;Zhou, Miaoran;Xu, Shifen;Pang, Xiufeng;Liu, Mingyao;Yi, Zhengfang;Chen, Yihua research published 《 Synthesis and Biological Evaluation of B-Cell Lymphoma 6 Inhibitors of N-Phenyl-4-pyrimidinamine Derivatives Bearing Potent Activities against Tumor Growth》, the research content is summarized as follows. The transcriptional repressor B-cell lymphoma 6 (BCL6) is frequently misregulated in diffuse large B-cell lymphoma (DLBCL) and has emerged as an attractive drug target for the treatments of lymphoma. In this article, a series of N-phenyl-4-pyrimidinamine derivatives were designed and synthesized as potent BCL6 inhibitors by optimizing hit compound N⁴-(3-chloro-4-methoxyphenyl)-N²-isobutyl-5-fluoro-2,4-pyrimidinediamine on the basis of the structure-activity relationship. Among them, compound I displayed the most potent activities, which significantly blocked the interaction of BCL6 with its corepressors, reactivated BCL6 target genes in a dose-dependent manner, and had better effects compared with the two pos. controls. Further studies indicated that a low dose of I could effectively inhibit germinal center formation. More importantly, I not only showed potent inhibition of DLBCL cell proliferation in vitro but also strongly suppressed the growth of DLBCL in vivo.

2927-71-1, 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., Electric Literature of 2927-71-1

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. 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. Synthetic Route of 109-12-6.

Guo, Ming;Zuo, Daiying;Zhao, Tianming;Li, Xiangyu;Cao, Jianshuang;Qiu, Yuxuan;Wei, Shangfei;Zhai, Xin research published 《 Structure-based optimization identified novel furyl-containing 2,4-diarylaminopyrimidine analogues as ALK/ROS1 dual inhibitors with anti-mutation effects》, the research content is summarized as follows. Aiming to develop ALK/ROS1 dual inhibitors overcoming ceritinib-resistant G1202R mutant, a dedicated structure-guided modification campaign was conducted based on ALK co-crystal structures. Twenty eight diarylaminopyrimidine (DAAP) analogs I [R = methanesulfonyl, acetyl; R¹ = furan-2-yl, oxolan-2-yl, (furan-2-ylmethyl)dimethylamine, etc.; X = O, NH, SO₂] possessing furan or THF group were designed and synthesized, among which compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] bearing ((((dimethylamino)methyl)furan-2-yl)methyl)thio fragment was identified. Compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] exhibited significant cytotoxicity on ALK-pos. Karpas299 and H2228 cells with IC₅₀ values of 20 nM and 110 nM. Meanwhile, compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] turned out as the most potent entity superior to ceritinib with IC₅₀ values of 2.8, 2.6, 3.8 and 2.3 nM against ALKWT, ALKL1196M, ALKG1202R and ROS1WT, resp. Subsequently, western blot assay showed that compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] significantly suppressed ALK and its downstream protein expression in a dose-dependent manner. Alternatively, the Hoechst 33258 and AO/EB staining assays illustrated that compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] could induce H2228 cell apoptosis. Ultimately, the binding models of compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] with ALKWT, ALKG1202R as well as ROS1 clearly presented the essential interactions within the active site. Together, compound I [R = methanesulfonyl, R¹ = (furan-2-ylmethyl)dimethylamine, X = S] was validated as a promising ALK/ROS1 dual inhibitor for ALKG1202R mutation correlated tumors.

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., Synthetic Route of 109-12-6

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

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. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. 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. SDS of cas: 1722-12-9.

Guo, Kang;Gu, Chen;Li, Yun;Xie, Xiaofei;Zhang, Honglin;Chen, Kang;Zhu, Yingguang research published 《 Photoredox Catalyzed Trifluoromethyl Radical-Triggered Trifunctionalization of 5-Hexenenitriles via Cyano Migration》, the research content is summarized as follows. A photoredox catalyzed trifluoromethyl radical-triggered trifunctionalization of 5-hexenenitriles via cyano group migration is reported. The cyano group migration is of high chemo-selectivity even in the presence of aryl or heteroaryl groups as competitors. This protocol provides a facile access to a broad scope of CF₃-containing compounds with high mol. complexity and functional group diversity. The success of gram-scale reaction and the versatility of products in derivative synthesis illustrate the potential value of this transformation in synthetic chem.

SDS of cas: 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

Pyrimidine is a nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA. 1722-12-9, formula is C4H3ClN2, Name is 2-Chloropyrimidine. Pyrimidine also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. COA of Formula: C4H3ClN2.

Guo, Dongdong;Li, Bin;Gao, Wenmei;Zhang, Wuxia;Wang, Yongqiang;Zhao, Jinzhong research published 《 Study on Palladium(II)-Catalyzed Mono-1-alkenylation of 9H-Carbazoles》, the research content is summarized as follows. A general and efficient method is reported for the direct mono-1-alkenylation of 9H-carbazole mols. with divalent palladium as a catalyst and an N-(2-pyridyl)sulfanyl directing group. This method also provides an efficient synthetic route for the synthesis of cross-dialkenylated carbazoles.

COA of Formula: C4H3ClN2, 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

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). Computed Properties of 109-12-6.

Guchhait, Sankar K.;Saini, Meenu;Khivsara, Viren J.;Giri, Santosh K. research published 《 Annulation of Conjugated Azine-Imine with a Sulfoxonium Ylide in a Noncarbenoid Route to Synthesize Multisubstituted Imidazole-Fused Heterocycles》, the research content is summarized as follows. A new [4+1]-annulation of in situ generated heterocyclic azine-aldimines with β-keto sulfoxonium ylides has been developed. The reaction constructs N-fused imidazole rings I (X=Y= CH,N; Ar¹= 4-ClC₆H₄, 4-BrC₆H₄, 4-CNC₆H₄, etc.; Ar² = 4-ClC₆H₄, 4-MeOC₆H₄, 4-FC₆H₄, etc.). In the reaction, the ylides play a dual-functional role of a nucleophilic 1,1-dipolar one-carbon synthon and a source of an internal oxidant, DMSO, that promotes in situ dehydrogenation to product scaffolds. The method enables access to imidazo-pyridine, pyrazine, and pyrimidine heteroaromatics

Computed Properties 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

Pyrimidine is a nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA. 109-12-6, formula is C4H5N3, Name is Pyrimidin-2-amine. Pyrimidine also found in many synthetic compounds such as barbiturates and the HIV drug, zidovudine. Application In Synthesis of 109-12-6.

Guan, Shengjie;Wu, Fan;Wu, Qian;He, Zhichao;Jiang, Jing;Huang, Yudong;Liu, Li research published 《 Modification of silicone resins by Si-N cross-dehydrocoupling with perfect thermal stability and mechanical performance》, the research content is summarized as follows. A series of new types of modified hydrosilanes were synthesized, using hydrosilanes and nitrogen heterocycles (triethoxysilane, 2-aminopyrimidine, 1,2,4-triazin-3-amine, benzylamine and 2-aminobenzothiazole), by Si-N cross-dehydrocoupling catalyzed by Ru₃CO₁₂. The results of the synthesis were then demonstrated by ¹H NMR and GPC testing. Furthermore, modified silicone resins were obtained by a hydrolytic condensation reaction catalyzed by tetramethylammonium hydroxide and characterized by TGA, DSC and FT-IR. Next, excellent thermal stabilities were determined (best initial decomposition temperature was approx. 400°C, T95% was 595°C, the mass residue rate at 800°C was 87.2%). Carbon fiber reinforced silicone matrix composites were manufactured according to the tech. process developed using DSC and rotary viscometer test results, and the mech. property (ILSS) showed great improvement from 34.8 to 45.8 MPa because of the modification of Si-N cross-dehydrocoupling. After pyrolysis up to 1000°C, the composites still showed a superior ILSS value (19.6 MPa) and the modified silicone resins had a more regular and rounded microstructure and appeared to have ceramic-like particles of Si3N4. This work indicated that the silicone resin (Si-N) modified by cross-dehydrocoupling had greater competitiveness in the field of resin matrix composites.

Application In Synthesis 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