Triazoles

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C2H2N3Na

A mixture of 2,3-difluorobenzylnitrile (2.27 g, 16.3 mmol) and triazole sodium salt (1.33 g, 14.8 mmol) in tetrahydrofuran (5 mL) and dimethylformamide (10 mL) was stirred at 85 C. for 4 h. After concentration, the residue was purified by flash chromatography (SiO2) eluting with 25%-50% ethyl acetate/hexane. The isolated product was recrystallized from hot ethyl acetate/hexane to give the title compound as white needles (1.51 g, 54% yield). 1H-NMR (500 MHz, CDCl3) ? ppm: 8.50 (1H, d, J=2.4 Hz), 8.25 (1H, s), 7.69-7.67 (1H, m), 7.60-7.57 (2H, m). LCMS [M+H]+ calcd for C9H6N4F: 189.16; found: 189.14.

According to the analysis of related databases, 41253-21-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Naidu, B. Narasimhulu; Banville, Jacques; Beaulieu, Francis; Connolly, Timothy P.; Krystal, Mark R.; Matiskella, John D.; Ouellet, Carl; Plamondon, Serge; Remillard, Roger; Sorenson, Margaret E.; Ueda, Yasutsugu; Walker, Michael A.; US2005/267105; (2005); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 288-88-0, name is 1H-1,2,4-Triazole, belongs to Triazoles compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 288-88-0, Safety of 1H-1,2,4-Triazole

To a stirred solution of 4-fluro benzaldehyde (1.0 g, 0.8 mmol) in dry DMF (5 mL), 1 H-1 ,2,4-triazole (660 mg, 0.9 mmol) and K2CO3 (2.2 g, 1.6 mmol) were added at RT and the resulting mixture was stirred overnight at 1 10 C. After completion of reaction, ice water (2 mL) was added and the mixture was extracted with EtOAc (2 x 20 ml_). The combined organic layer was washed with brine (2 ml_), dried over Na2S04 and concentrated under vacuum. The resulting product was used in next step without further purification. Yield: 46% (610 mg, white solid). LCMS: (Method A) 174.1 (M+H), Rt.1.27 min, 67.51 % (Max).

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Patent; ASCENEURON S. A.; QUATTROPANI, Anna; WISHART, Grant; KULKARNI, Santosh S.; RAKESH, Paul; (338 pag.)WO2020/39027; (2020); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 151899-62-6, A common heterocyclic compound, 151899-62-6, name is 3-Iodo-1-trityl-1H-1,2,4-triazole, molecular formula is C21H16IN3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Nitrogen gas was bubbled through a solution of (15)-3-[(25r,3lambda)-2-(4-{4- (acetyloxy)-3 – [(acetyloxy)methyl] -3 -hydroxybut- 1 -yn- 1 -yl } phenyl)- 1 -(4-ethynylphenyl)-4- oxoazetidin-3-yl]-l-(4-fluorophenyl)propyl acetate (4.Og, 6.3mmol; intermediate step B), 3-iodo- l-trityl-lH-l,2,4-triazole (i-8) (5.47g, 12.5mmol), triethylamine (4.4mL, 31.3mmol), and tetra-n- butylammonium iodide (2.3 Ig, 6.3mmol) in anhydrous DMF (5mL) and was heated at 5O0C for 20 minutes. Pd(PPh3)4 (0.72g, 0.63mmol) and CuI (0.2g, 1.25mmol) were added and the reaction mixture was heated at 5O0C under nitrogen atmosphere for ~18hr. The reaction mixture was cooled to RT, poured into water (70OmL) and extracted with EtOAc (3x200mL). The combined organic layers were washed with water (2x500mL), brine (20OmL) dried over Na2SO4,10 filtered and the solvent removed under vacuum. The residue was purified by column chromatography eluting with 0%EtOAc/hexanes then gradient from 0%EtOAc/hexanes to 50%EtOAc/hexanes then 50% EtOAc/hexanes to 60% EtOAc/hexanes then 60% EtOAc/hexanes to afford the title compound. 1HNMR (500 MHz, CDCl3) delta: 8.03 (s, IH), 7.45 (d, J = 8.0, 2H), 7.44 (d, J = 8.7, 2H), 7.36 (m, 9H), 7.29 (m, 4H), 7.19 (d, J – 8.7, 2H), 7.15 (m, 6H), 7.04 (t, J =15 8.4, 2H), 5.71 (t, J – 6.6, IH), 4.63 (d, J = 2.3, IH), 4.39 (d, J = 11.5, 2H), 4.32 (d, J = 11.5, 2H), 3.36 (s, IH), 3.08 (m, IH), 2.15 (s, 6H), 2.07 (s, 3H), 2.07-2.02 (m, 2H), 1.93-1.85 (m, 2H).

The synthetic route of 151899-62-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; MERCK & CO., INC.; WO2008/57336; (2008); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, A new synthetic method of this compound is introduced below., Safety of 1H-[1,2,3]Triazole-4-carboxylic acid

[0794] IH-1,2,3-triazole-5-carboxylic acid (3.4 mg, 30f.tmol) was combined with HATU (II mg, 30 f.tmol) in DMF(0.3 mL) stirred at room temperature for 10 minutes; DIPEA(I eq.) was added and the mixture was stirred for I minute.Compound 2 (10 mg, 30 f.tmol) was dissolved in DMF (0.5mL) and DIPEA (5.2 f.LL, 30 f.tmol) was added, followed byaddition of the activated acid solution. The mixture wasstirred at room temperature for 30 minutes, after which timeLCMS indicated desired product formation. Half of the crudeproduct was purified using reverse phase chromatography toyield Compound a (12.1 mg) as a TFA salt. MS m/z [M+Hrcalc’d for C28H33CIFN50 3 , 542.23. found 542. Half of thecrude product was used in the next step without purification.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; THERAVANCE BIOPHARMA R&D IP, LLC; Fleury, Melissa; Beausoliel, Anne-Marie; Hughes, Adam D.; Long, Daniel D.; Wilton, Donna A.A.; US2015/210690; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 3,5-Dibromo-1H-1,2,4-triazole

General procedure: 3,5-Dibromo-1,2,4-triazole (1; 658 mg, 2.9 mmol) or 3-chloro-1,2,4-triazole (300 mg, 2.9 mmol), o-quinone methide precursor 2 (2.9mmol), and K2CO3 (1.2 g, 8.7 mmol) were refluxed for 4 h in DMF (10mL). After completion of the reaction, the mixture was cooled, andpoured into H2O (30 mL). The precipitate formed was collected by filtration,washed with H2O, dried, and recrystallized.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 7411-23-6.

Reference:
Article; Osipov, Dmitry V.; Osyanin, Vitaly A.; Voskressensky, Leonid G.; Klimochkin, Yuri N.; Synthesis; vol. 49; 10; (2017); p. 2286 – 2296;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, A new synthetic method of this compound is introduced below., Application In Synthesis of 3,5-Dibromo-1H-1,2,4-triazole

Two batches of phenyiboronic acid (135 g, 111 mrnol, 1.0 eq), 35-dibromo-iH-i,2,4- triazole (25 g, 110 mmoi, 1.0 eq), Cu( Ac)2 (30 g, 165 mmol, 1.5 eq), pyridine (26.5 g, 335 mmol, 27 mL, 3.0 eq) and 4A MS (5 g, 22,0 mmoi) in toluene (250 mL) was degassed and purged with 02 for three times, and then the mixture was stirred at 80 C for 16 h under 02 atmosphere (15 psi). After completion of the reaction, the two batches of reaction mixture were mixed and filtered, then concentrated under reduced pressure to give a residue. The residue was purified by flash silica gel chromatography (ISCO; 200 g SepaFlash Silica Flash Column, eluent of Oi 0% ethyl acetate/petroleum ether gradient 80 mL/rnin) to give 36 g crude product with 67% purity. 2 g was used for next step directly. The remaining 34 g was diluted with DCM (200 mL) and washed with saturated aqueous NaHCO3 (100 mL x 1), brine (100 mL), dried over anhydrous Na2504, filtered and concentrated under reduced pressure to give 3,5-dibrorno-1-phenvl-i,2,4-triazoie (29.2 g, 37% yield, 85% purity) as a light yellow solid. LCMS (ESI): m/z (M¡ÀH) 303.9.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; AN2H DISCOVERY LIMITED; JOHNSTON, Jennifer; GAROFALO, Albert W.; (194 pag.)WO2017/210694; (2017); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 7343-34-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 7343-34-2, name is 3,5-Dimethyl-4H-1,2,4-triazole belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below.

To a slurry of 4,6-dichloro-2-methylpyrirnidine (1-1) (5.00 g, 30.67 mmol, 1.0 eq.) and cesium carbonate (15.0 g, 46.05 mmol, 1.5 eq.) in DMF (250 mL) at 0 ¡ãC under nitrogen was added a solution of 3,5-dimethyl-lH-l,2,4-triazole (2.98 g, 30.67 mmol, 1.0 eq.) in DMF (50 mL) via a dropping funnel over 1 hour. The reaction was then warmed to room temperature and stirred for 1 hour. The reaction was quenched by addition of water (500 mL) and extracted with ethyl acetate (3 x 400 mL). The combined organic layers were dried over sodium sulfate, filtered and concentrated to dryness. The crude product was purified by silica gel column chromatography (0-30percent ethyl acetate in hexanes) to afford 4-chloro-6-(3,5-dimethyl-lH-l,2,4-triazol-l-yl)-2-methylpyrimidine (1-2) as a white solid. ‘Eta NMR (300 MHz, CDC13) delta 7.75 (s, 1H), 2.91 (s, 3H), 2.72 (s, 3H), 2.41 (s, 3H). LRMS mlz (M+Ff) 224 found, 224 required.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3,5-Dimethyl-4H-1,2,4-triazole, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MERCK SHARP & DOHME CORP.; COX, Christopher, D.; DUDKIN, Vadim, Y.; KIM, June, J.; KUDUK, Scott, D.; MCVEAN, Carol; REGER, Thomas; STEEN, Justin; STEELE, Thomas; WO2013/52526; (2013); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 41253-21-8, These common heterocyclic compound, 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Prepare a dry, clean 500mL glass four-port bottle, equipped with a suitable mechanical stirrer, condenser tube and thermometer, and check the airtightness before adding the material.95 g of 2′-chloro-2,4-difluoroacetophenone (compound 5) (0.5 mol, 1 eq), 69 g was added to the reaction flask under N2 protection.Sodium 1,2,4-triazolyl (Compound 6) (0.75 mol, 1.5 eq) and 200 mL of DMF were stirred and the temperature of the reaction solution was raised to 70-75 C. The reaction was stirred for 12 h. After the reaction was completed, the reaction system was cooled to At room temperature, 400 ml of water was added, and then 600 ml of ethyl acetate was added for extraction. The separated ethyl acetate phase was washed with 300 ml of water and the organic phase was separated. The solvent was distilled off under reduced pressure and 300 ml of n-heptane was added for recrystallization to give a white solid. Powdery Compound 1 84.8 g (yield: 76.0%).

Statistics shows that Sodium 1,2,4-triazol-1-ide is playing an increasingly important role. we look forward to future research findings about 41253-21-8.

Reference:
Patent; Jiangsu Hengsheng Pharmaceutical Co., Ltd.; Wang Xilin; Yu Yuanyuan; (8 pag.)CN107746388; (2018); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 1001401-62-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1001401-62-2 name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

A mixture of 2-(2H-1,2,3-triazol-2-yl)benzoic acid (285 mg, 1.5 mmol) in SOCl2 (3 mL) was stirred at RT for 0.5 h. Then the mixture was concentrated in vacuo. To a solution of the product from step 7 (300 mg, 1.26 mmol) and TEA (0.5 mL, 3.78 mmol) in DCM (3 mL) was added the above residue dropwise at 0 oC. The mixture was stirred at 0 oC for 2 h. water (2 mL) was added to quench the reaction and the mixture was extracted with DCM (3 mL x 3). The combined organic layers was washed with brine (3 mL x 3), dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by Prep-HPLC to give the title compound as a solid. LRMS m/z (M+H) 410.1 found, 410.2 required.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, and friends who are interested can also refer to it.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; LIVERTON, Nigel; LUO, Yunfu; (68 pag.)WO2016/89721; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 16681-70-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below.

lH-l,2,3-triazole-4-carboxylic acid (3.8 mg, 34 muiotaetaomicron) was combined with HATU (12.9 mg, 34 muiotaetaomicron) in DMF (2 mL) and stirred at room temperature for 15 minutes. (1386) Compound 3 (13 mg, 31 muiotaetaomicron) and DIPEA (16 mu^, 92 muiotaetaomicron) were then added. The solution was stirred at room temperature for 15 minutes, at which time LCMS showed reaction completion. The solvent was removed in vacuo and the crude residue was purified by reverse phase chromatography to yield Compound b (15 mg) as a TFA salt. MS m/z [M+H]+ calc’d for C25H29CIFN5O4, 518.19; found 518.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 1H-[1,2,3]Triazole-4-carboxylic acid, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; THERAVANCE BIOPHARMA R&D IP, LLC; FLEURY, Melissa; BEAUSOLIEL, Anne-Marie; HUGHES, Adam D.; LONG, Daniel D.; WILTON, Donna A.A.; WO2015/116786; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics