Triazoles

On April 2, 2021, Fang, Wenkui; Li, Guanqun; Cai, Yuting; Pan, Xiang; Zhu, Wenhao; Wang, Yang; Wang, Zengquan published a patent.Quality Control of 6,8-Dichloro-[1,2,4]triazolo[1,5-a]pyrazine The title of the patent was Preparation of triazolopyrazine compound as Tyk2 specific inhibitor for prevention and/or treatment of autoimmune diseases and related inflammatory skin diseases. And the patent contained the following:

The present invention relates to the preparation of triazolopyrazine compound as Tyk2 specific inhibitor for prevention and/or treatment of autoimmune diseases and related inflammatory skin diseases. In particular, the triazole pyrazine compound I (wherein, W = (un)substituted aryl or heteroaryl; X = C or N; R = H or any substituent group such as halogen, cyanide, amino, alkyl, alkoxy, cyanoalkyl etc) or its stereoisomers, geometric isomers, tautomers, hydrates, solvates and pharmaceutically acceptable salts or prodrugs were prepared The inventive compound can be used as a Tyk2 specific inhibitor which can provide a more targeted medicament for an autoimmune inflammatory disease driven by an IL-23/Th17 axis and diseases such as rheumatoid arthritis, psoriasis, compulsive spondylitis, Sjogren’s syndrome, lupus erythematosus, inflammatory bowel disease, Behcet’s disease, Covid-19 severe pneumonia can be safely and effectively treated. The experimental process involved the reaction of 6,8-Dichloro-[1,2,4]triazolo[1,5-a]pyrazine(cas: 2092807-41-3).Quality Control of 6,8-Dichloro-[1,2,4]triazolo[1,5-a]pyrazine

The Article related to triazolopyrazine compound preparation tyk2 inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Quality Control of 6,8-Dichloro-[1,2,4]triazolo[1,5-a]pyrazine

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Li, Si-Yuan; Guan, Zhen-Yu; Xue, Jing; Zhang, Guang-Yi; Guan, Xiao-Yu; Deng, Qing-Hai published an article in 2020, the title of the article was Practical copper-catalyzed chloronitration of alkenes with TMSCl and guanidine nitrate.Application of 5301-96-2 And the article contains the following content:

A novel and practical chloronitration of alkenes in the presence of easily available TMSCl and guanidine nitrate was developed by using cheap copper sulfate pentahydrate as the catalyst. A variety of vic-chloronitro compounds were directly synthesized in good to excellent yields on up to 100 mmol scale under mild reaction conditions, and the resulting products could be smoothly transformed into the corresponding nitroalkenes and diverse nitro compounds bearing a vicinal nucleophilic “C”, “N” or “S” unit. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Application of 5301-96-2

The Article related to nitroalkene preparation, alkene guanidine nitrate chloronitration, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Hydrocarbons (Saturated and Unsaturated Side Chains) and other aspects.Application of 5301-96-2

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Lu, Qixing; Wang, Tao; Wu, Qian; Cheng, Lijing; Luo, Han; Liu, Lei; Chu, Guobiao; Wang, Lufeng; Li, Baosheng published an article in 2022, the title of the article was C-H heteroarylation of aromatics via catalyst free SN2′ coupling cycloaromatization.Product Details of 5301-96-2 And the article contains the following content:

The construction of a carbon-carbon bond is the most fundamental aspect of synthetic chem. In this study, authors developed a catalyst-free SN2′ reaction of β-OTf-substituted enamides with aromatics to obtain aryl-substituted aza-1,4-dicarbonyl compounds that can be in situ transformed into aryl-imidazole, aryl-thiazole, and aryl-oxazole in one-pot operation, thus achieving C-H heteroarylation of aromatics This simple, efficient, clean and scalable strategy, which provides difficult-to-realize biaryl products, is compatible with various aromatics having varying complexities. This method can be used for the late-stage modification of various com. pharmaceuticals or functional materials and offers an orthogonal approach for constructing biaryl compounds The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Product Details of 5301-96-2

The Article related to aromatic compound heteroarylation coupling cycloaromatization, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Product Details of 5301-96-2

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

On October 18, 1984, Engelhardt, Philip R.; Ventura, Ederlyna M. published a patent.Name: 4-(p-Tolyl)-1H-1,2,3-triazole The title of the patent was Corrosion-preventing antifreeze solution. And the patent contained the following:

A corrosion-inhibiting soluble for cooling systems of engine radiators contains alc. such as ethylene glycol  [107-21-1] (antifreeze solution) and 1-10,000 ppm corrosion inhibitor such as saturated aliphatic dicarboxylic acid, preferably adipic acid  [124-04-9] or its water-soluble salt, inorganic phosphate and molybdate, especially Na2MoO4, nitrates, azoles, silicates, or their mixtures An aqueous antifreeze solution of ethylene glycol preferably contains a corrosion inhibitor solution of Na2MoO4 0.5-5, adipic acid 0.5-10, Na phosphate 5-75, and mixture of NaNO3, Na silicate, Na-2-mercaptobenzothiazole  [2492-26-4], and 1,2,3-tolyltriazole  [5301-96-2] 1-50 weight%. Thus, a corrosion inhibitor containing Na phosphate 66.66, adipic acid 6.47, Na2MoO4 3.88, Na2SiO3 7.76, NaNO3 7.76, 2-mercaptobenzothiazole 6.47, 1,2,3-tolyltriazole 1.44, and Na styrenesulfonate-maleic anhydride copolymer (dispersion agent) [9065-80-9] 1.56 parts was tested at 7713 ppm in aqueous 50 volume% ethylene glycol solution The corrosion after 7 wk for Cu, Ag braze, yellow brass, steel, cast iron, and Al casting was 2, 1.9, 1.2, 2, 7.5, and 0.6 mg, resp., which indicated excellent corrosion protection. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Name: 4-(p-Tolyl)-1H-1,2,3-triazole

The Article related to radiator antifreeze corrosion inhibitor, cooling water corrosion inhibitor, Nonferrous Metals and Alloys: Corrosion (If The Primary Interest Is In The Metal), Erosion, Cavitation, Tribology, and Oxidation and other aspects.Name: 4-(p-Tolyl)-1H-1,2,3-triazole

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

On December 18, 2018, Xia, Liangwen; Wang, Xianggang; Xia, Yuchun published a patent.COA of Formula: C9H9N3 The title of the patent was Chromium-free passivator and application thereof. And the patent contained the following:

The present invention discloses a chromium-free passivator and application thereof, which has no toxic and side effects on human body and operating environment, and is very suitable for pre-spraying treatment of aluminum profiles. The chromium-free passivator comprises the following components in percentage by weight: hydrofluoric acid 20-40%, nitric acid 20-30%, fluoro zirconic acid 15-25%, sodium nitrate 2-8%, sodium sulfate 3-6%, nitrogen-containing heterocyclic compounds 2-5%, trisodium hydroxyethyl diamine tetraacetate 2-5%, and diethylene glycol Bu ether 3-14%, when using, mixing with running water to form passivation tank liquid The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).COA of Formula: C9H9N3

The Article related to chromium free passivator passivation tank liquid, Nonferrous Metals and Alloys: Surface Treatment, Metallic and Nonmetallic Coating, Sealing, Cleaning, Polishing, Etching, and Pickling and other aspects.COA of Formula: C9H9N3

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

On January 31, 1986, Kleinpeter, E.; Wilde, H.; Hauptmann, S. published an article.Quality Control of 4-(p-Tolyl)-1H-1,2,3-triazole The title of the article was Carbon-13 substituent-induced chemical shifts in 1-amino-4-phenyl- and 4-phenyl-1H-1,2,3-triazoles. And the article contained the following:

13C NMR spectra of triazoles (I; R = 4-MeO, 4-Me3C, 4-Et, H, 4-Cl, etc.; and II; R1 = 4-MeO, 4-Me3C, H, 4-Br, 3-NO2, etc.) were measured. Reasonable correlations with Hammett σ values were observed for the chem. shifts of both C-4 and C-5 of II. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Quality Control of 4-(p-Tolyl)-1H-1,2,3-triazole

The Article related to nmr carbon phenyltriazole, triazole phenyl carbon nmr, Physical Organic Chemistry: Resonance Spectra (Electron Spin, Nuclear Magnetic and Fourier Transform Nuclear Magnetic, Quadrupole, etc.) and other aspects.Quality Control of 4-(p-Tolyl)-1H-1,2,3-triazole

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

On March 31, 2014, Aziz, Saadullah G.; Elroby, Shabaan A.; Alyoubi, Abdulrahman; Osman, Osman I.; Hilal, Rifaat published an article.Safety of 4-(p-Tolyl)-1H-1,2,3-triazole The title of the article was Experimental and theoretical assignment of the vibrational spectra of triazoles and benzotriazoles. Identification of IR marker bands and electric response properties. And the article contained the following:

The FTIR spectra of a series of 1H- and 2H- 1,2,3- and 1,2,4- triazoles and benzotriazoles were measured in the solid state. Assignments of the observed bands were facilitated by computation of the spectra using the d. functional B3LYP method with the 6-311++G** basis set. The theor. spectra show very good agreement with experiment Rigorous normal coordinate analyses have been performed, and detailed vibrational assignment has been made on the basis of the calculated potential energy distributions. Several ambiguities and contradictions in the previously reported vibrational assignments have been clarified. ‘Marker bands’ characterize the triazole ring were identified. The effect of substituents, the nature of the characteristic ‘marker bands’ and quenching of intensities of some bands are discussed. Comparison of the topol. of the charge d. distribution, and the elec. response properties of the 1H-, and 2H- isomers of both 1,2,3- and 1,2,4 triazole have been made using the quantum theory of atoms-in-mols. (QTAIM) by calculating the Laplacian of the electron d. (∇2ρ(r)). Anal. of the contour plots and relief maps of ∇2ρ(r) revealed that 1,2,3- and 1,2,4-triazoles showed completely different topol. features for the distribution of the electron d. Thus, while the 1,2,3-isomer is a very polar mol., the 1,2,4-isomer is much more polarizable. Bonding characteristics also showed different features. This would thus underlie the different features of their vibrational spectra. The reported vibrational assignment can be used for further spectroscopic studies of new drugs and biol. compounds containing the triazole ring. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Safety of 4-(p-Tolyl)-1H-1,2,3-triazole

The Article related to triazole benzotriazole ir spectrum elec response property mol topol, Physical Organic Chemistry: Absorption, Emission, Reflection, and Scattering Spectra (Ultraviolet and Visible, Infrared and Fourier Transform Infrared, Raman, Microwave, Photoelectron, Fluorescence, Phosphorescence, etc.) and other aspects.Safety of 4-(p-Tolyl)-1H-1,2,3-triazole

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Payra, Soumen; Saha, Arijit; Banerjee, Subhash published an article in 2018, the title of the article was On Water Cu@g-C3N4 Catalyzed Synthesis of NH-1,2,3-Triazoles via [2+3] Cycloadditions of Nitroolefins/Alkynes and Sodium Azide.Recommanded Product: 4-(p-Tolyl)-1H-1,2,3-triazole And the article contains the following content:

Here, graphitic polymeric carbon nitride supported copper chloride (Cu@g-C3N4) was prepared by the calcination of urea followed by immobilization of CuCl2 and characterized by powder X-ray diffraction, field emission SEM, high resolution transmission electron microscopy, XPS studies. An efficient and regioselective protocol for the on water synthesis of 4-aryl-NH-1,2,3-triazole derivatives I (R1 = H, 4-OMe, 2-NO2, etc.) via 1,3-dipolar cycloaddition reactions of nitroolefins/phenylacetylenes to sodium azide were demonstrated by using Cu@g-C3N4 as robust and reusable catalyst. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Recommanded Product: 4-(p-Tolyl)-1H-1,2,3-triazole

The Article related to aryl triazole preparation regioselective, nitroolefin phenylacetylene sodium azide dipolar cycloaddition, graphitic carbon nitride supported copper chloride preparation catalyst and other aspects.Recommanded Product: 4-(p-Tolyl)-1H-1,2,3-triazole

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

On March 18, 2022, Motornov, Vladimir; Beier, Petr published an article.Formula: C9H9N3 The title of the article was Access to Fluoroalkylated Azoles and 2-Acylaminoketones via Fluorinated Anhydride-Mediated Cleavage of NH-1,2,3-Triazoles. And the article contained the following:

NH-1,2,3-Triazoles I (R = Ph, 2-chlorophenyl, cyclohex-1-enyl, etc.; R1 = H, CH3, C2H5, C6H5, (CH2)2C(O)2CH3, Cl) undergo a ring cleavage in reactions with fluorinated acid anhydrides (trifluoroacetic, trichloroacetic, difluoroacetic, chlorodifluoroacetic and pentafluoropropionic anhydrides) by nitrogen acylation and acid-mediated triazole ring opening. Structurally diverse fluoroalkylated oxazoles II (X = H, F, Cl, CF3) were prepared from 4,5-disubstituted-1,2,3-triazoles I. Efficient synthesis of 2-acylaminoketones RC(O)CH2NHC(O)CF2X and 2,2,2-trichloro-N-(2-oxo-2-(p-tolyl)ethyl)acetamide was achieved from 4-substituted-1,2,3-triazoles I (R1 = H). Finally, easy access to fluoroalkylated imidazoles III (R2 = 4-methylphenyl, 4-chlorophenyl, 4-methoxyphenyl; R3 = Me, n-Bu; R4 = CF3, CF2CF3) and 1,2,4-triazines IV was developed by a one-pot two step route from NH-triazoles, fluorinated anhydrides and amines such as methanamine and butanamine or hydrazine, resp. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).Formula: C9H9N3

The Article related to fluoroalkyl oxazole preparation, acylaminoketone preparation, imidazole fluoroalkyl preparation, trifluoromethyl triazine preparation, triazole acid anhydride acylation ring opening and other aspects.Formula: C9H9N3

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Zhang, You-Can; Jin, Rui; Li, Luo-Yuan; Chen, Zili; Fu, Li-Min published an article in 2017, the title of the article was Study on the Fluorescent activity of N2-indolyl-1,2,3-triazoles.COA of Formula: C9H9N3 And the article contains the following content:

A new type of blue emitter, N2-indolyl-1,2,3-triazoles (NITs), with the λmax ranging from 420-480 nm and Stokes shift from 89-143 nm, were synthesized through the coupling reaction of indoles with triazole derivatives The influence of different substitution patterns on the optical properties (efficiency, excitation, and emission wavelengths) of the NITs was investigated. In addition, one palladium complex was synthesized by using NITs as the ligands, which, however, exhibited no fluorescent activity, but did show the enhanced co-planarity. Lastly, two bio-active mol. derivatives were explored for the potential use of these novel dyes in related chem. and biol. applications. The experimental process involved the reaction of 4-(p-Tolyl)-1H-1,2,3-triazole(cas: 5301-96-2).COA of Formula: C9H9N3

The Article related to indolyl triazole preparation fluorescence, triazole indole coupling, n2-aryl-1,2,3-triazoles (nats), n2-indolyl-1,2,3-triazoles (nits), blue-emissive fluorophore, fluorescent activity and other aspects.COA of Formula: C9H9N3

Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics