Triazoles

Synthetic Route of 3641-13-2, New Advances in Chemical Research in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 3641-13-2, name is 5-Amino-4H-1,2,4-triazole-3-carboxylic acid, molecular formula is C3H4N4O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

A solution of 3-amino-1,2,4-triazole-5-carboxylic acid (ATZAc)(49.41 g, 385.7 mmol) in anhydrous dimethylformamide (300 mL)was added over a period of 50 min to a stirred solution of POSS-PrCl(25 g, 24.11 mmol) in 300mL of DMF. The temperaturewas allowedto rise to 160 C and stirring was continued for 48 h resulting in awhite solution. Ethanol was added to precipitate octa[3-amino-1,2,4-triazole-5-carboxylic acid) propyl] silsesquioxane. The precipitatewas separated by filtration and washed with ethanolresulting in the POSS-ATZAc, according to our previous work [4].The resulting product was obtained after several attempts.Elemental Analysis for Si8O28C48H72N32 (1768.8 g/mol): C 32.56%, N25.32%, H 4.07%; found C 32.49%, N 24.95%, H 4.00%. IR (KBr pellet,cm-1): nu (C-H)=2939, nu (CO) =704, nu (CN) =1600, nu (CN)=1446, nuas (Si-O-Si) =1112. 13C solid-state NMR (100.61 MHz,ppm): 9.64 (CH2-Si), 23.23 (CH2-CH2Si), 48.95 (CH2-N),140.66-149.40 (aromatic ring), 155.22 (carboxylic acid group). 29Sisolid-state NMR (79.48 MHz, (Si-O), ppm): 66.04 (highintensity), 58.04 (low intensity). EDS (Full scale 58029 ctcursor: 0.152 (octs), keV): C, N, O, Si.

In the meantime we’ve collected together some recent articles in this area about 3641-13-2 to whet your appetite. Happy reading!

Reference:
Article; Vieira, Eduardo Guimaraes; Dal-Bo, Alexandre Goncalves; Frizon, Tiago Elias Allievi; Dias Filho, Newton Luiz; Journal of Organometallic Chemistry; vol. 834; (2017); p. 73 – 82;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 107534-96-3, New Advances in Chemical Research in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 107534-96-3, name is 3-((1H-1,2,4-Triazol-1-yl)methyl)-1-(4-chlorophenyl)-4,4-dimethylpentan-3-ol, molecular formula is C16H22ClN3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Example 8 Synthesis of 2-{2-[2-(4-chloro-phenyl)-ethyl]-2-hydroxy-3,3-dimethyl-butyl}- 2,4-dihydro-[1 ,2,4]triazole-3-thioneTo an ice-cold solution of 1 -(4-chloro-phenyl)-4,4-dimethyl-3-[1 ,2,4]triazol-1 -ylmethyl- pentan-3-ol (236 mg, 0.77 mmol) in 2 mL of THF was added a solution iPrMgCI in THF (2.0 M, 1 .0 mL, 2.0 mmol). The solution was warmed to 40 C and kept at that temperature for 90 min. Then, it was cooled to 0 C and treated and a suspension of sulfur (75 g, 2.34 mmol) in 1 mL of THF was added portionwise and the mixture stirred for another 60 min at 0 C. The solution was then poured onto 4% HCI (20 mL). The a- queous phase was extracted with TBME (2×30 mL). The combined org. phases were successively washed with water and brine. The crude product was obtained after drying over Na2S04 and removal of all volatiles. Purification was accomplished through flash column chromatography on silica (cyclohexane/EtOAc mixtures) to obtain the product as a colorless liquid (151 mg, 0.44 mmol, 58% yield).1H N R (DMSO-de. 500 MHz): delta (ppm) = 8.40 (s, 1 H); 7.29 (d, J = 12.0 Hz, 2 H); 7.18 (d, J = 12.0 Hz, 2 H); 4.51 -4.58 (m, 2 H); 4.00-4.06 (m, 1 H); 2.61 (dt, J = 5.0 Hz, J = 17.0 Hz, 1 H); 2.20-2.30 (m, 1 H); 1 .94-2.04 (m, 1 H); 1 .70 (dt, J = 5.0 Hz, J = 19.0 Hz, 1 H); 0.94 (s, 9 H).

The potential utility of systematic synthetic strategy will be applicable to efficient generations of chemical libraries of compounds to find ‘hit’ molecules.Read on for other articles about 3-((1H-1,2,4-Triazol-1-yl)methyl)-1-(4-chlorophenyl)-4,4-dimethylpentan-3-ol, hurry up and to see.

Reference:
Patent; BASF SE; DOCHNAHL, Maximilian; KEIL, Michael; GEBHARDT, Joachim; VOGELBACHER, Uwe Josef; MENGES, Frederik; RACK, Michael; RENNER, Jens; WOLF, Bernd; WO2011/113820; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 252742-72-6, New Advances in Chemical Research in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic,A common heterocyclic compound, 252742-72-6, name is 3-(Chloromethyl)-1H-1,2,4-triazol-5(4H)-one, molecular formula is C3H4ClN3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

To a solution of benzyl[(2S,3S)-2-phenyl-3-piperidinyl]carbamate (100 mg) in a mixture of N,N- dimethylformamide (0.66 ml) and water (0.01 ml) were added potassium carbonate (27 mg) and 5-(chloromethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (45 mg), and the whole was stirred at room temperature for 1 hour. The mixture was poured into cold water (30 ml) and stirred for 10 minutes. The resulting precipitates was collected by filtration, washed with water, and dried to give the title compound (108 mg) . MASS (ES+): 408 (M+H)+

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Reference:
Patent; FUJISAWA PHARMACEUTICAL CO., LTD.; WO2004/111000; (2004); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 1455-77-2, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 1455-77-2, name is 3,5-Diamino-1,2,4-triazole, 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.

A mixture containing Co(NO3)2·6H2O (58.2mg, 0.2mmol), Hdatrz (19.8mg, 0.2mmol) and NH2-H2ip (36.2mg, 0.2mmol) was dissolved in mixed H2O?CH3OH (v:v=1:1, 10.0mL) solution, and the initial pH value of the reactant mixture was adjusted to 6 by triethylamine. The resulting mixture was then transferred into a Teflon-lined stainless steel vessel (23.0mL) and heated at 165°C for 96h under autogenous pressure. After the mixture was cooled to room temperature at a rate of 2.9°Ch?1, red block-shaped crystals suitable for X-ray analysis were obtained directly, washed with water and dried in air (Yield: 50percent, based on NH2-H2ip). Anal. Calc. for C36H32Co4N14O17: C, 37.01; H, 2.76; N, 16.78. Found: C, 37.04; H, 2.65; N, 16.72percent. IR (KBr pellet, cm?1): 3409 (br), 3319 (w), 3167 (w), 1625 (s), 1588 (s), 1559 (s), 1481 (s), 1449 (s), 1386 (s), 1322 (w), 1011 (m), 985 (m), 952 (w), 797 (w), 778 (w), 724 (w), 666 (w).

Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. Keep reading other articles of 1455-77-2.

Reference:
Article; Zhao, Hong; Li, Hong-Xue; Liu, Zhong-Yi; Yang, En-Cui; Zhao, Xiao-Jun; Polyhedron; vol. 101; (2015); p. 29 – 36;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 7343-34-2, New Advances in Chemical Research in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 7343-34-2, name is 3,5-Dimethyl-4H-1,2,4-triazole, molecular formula is C4H7N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

To a slurry of 4,6-dicUoro-2-(methyltMo)pyrimidine (1-1) (1.00 g, 5.13 mmol, 1.0 eq.) and cesium carbonate (2.70 g, 7.67 mmol, 1.5 eq.) in DMF (40 mL) at 0 °C under nitrogen was added a solution of 3,5-dimethyl-lH-l,2,4-triazole (498 mg, 5.13 mmol, 1.0 eq.) in DMF (20 mL) via a dropping funnel over 1 hour. The reaction was then warmed to room temperature. The reaction was monitored by TLC and was complete after 1 hour. The reaction was quenched by addition of water (100 mL) and extracted with ethyl acetate (3 x 150 mL). The combined organic layers were dried over sodium sulfate, filtered and concentrated to dryness. The resulting residue was purified by silica gel column chromatography (0-50percent ethyl acetate in hexanes) to afford 4-cMoro-6-(3,5-dimemyl-lH-l,2,4-triazol-l-yl)-2-(m (1-2) as a white solid. 1HNMR (300 MHz, CDC13) delta 7.58 (s, 1H), 2.90 (s, 3H), 2.60 (s, 3H), 2.41 (s, 3H). LRMS mlz (M+H) 256 found, 256 required.

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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

New discoveries in chemical research and development in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 16681-65-5, name is 1-Methyl-1H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 16681-65-5

The title compound was prepared according to No. WO2008 / 135826 International Patent Application Publication. In 1-methyl -1H-1,2,3- triazole (1.0g, 12.0 mmol, prepared according to International Patent Application No. 2008098104) 50 mL 2-neck flask containing, by the addition of THF (45 mL) , colorless solution was cooled to -40 . Then, by adding dropwise the (2.5 M, 4.8 mL, 12.0 mmol in hexane) n-BuLi, to give a dark reddish brown viscous solution. The mixture was stirred for 45 minutes at -30 to -20 in the following, was introduced into a pure DMF (3mL, 38.5 mmol) at -10 . The mixture was allowed to warm to room temperature, after stirring for 60 minutes, poured into water. Extract the aqueous portion with EtOAc (4 × 50 mL), the combined organics washed with brine, dried with MgSO4, filtered, and concentrated. The aqueous portion was extracted with DCM (3 × 50 mL) station, and dried as described above. The combined organics were concentrated to give a light brown oil The UV activity much higher than the starting material. DCM-25% CH3CN, according to TLC or of from 25% EtOAc-DCM, showed the product has a slightly higher Rf than the starting material. (With 100% DCM, 25% CH3CN-DCM increased) by silica gel chromatography on to give the title compound as a colorless oil.

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Reference:
Patent; Janssen Pharmaceuticals N.V; Leonardo, Christi.A.; Barvei, Kent; Edward, James P.; Gloita, Kevin D.; Kummer, David .A.; Maharoof, Umar; Nishimura, Rachael; Urbanski, Mode; Venkatesan, Hariharan; Wang, Ai Hua; Olin, Ronald L.; Woods, Craig; Fourier, Anne; Shu, Jih; Cumings, Maxwell D.; (86 pag.)KR2016/68948; (2016); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 4923-01-7, New Advances in Chemical Research in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 4923-01-7, name is 5-Methyl-4H-1,2,4-triazol-3-amine, molecular formula is C3H6N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: Method I. A mixture of Py (4.4 ml) and AcOH (3.0 ml) was stirred and treated by the addition of 5-aminoazole1a-h (0.01 mol) and (2E)-(3-morpholin-4-yl)-acrylonitrile (2) (1.38 g, 0.01 mol). The obtained mixture was refluxed at 150C for 5 h. After refluxing, the mixture was cooled. The precipitate that formed was filtered off, washed with a small amount of EtOH, and dried. Method II. A solution (or suspension) of the appropriate aminoazole 1a-h (0.01 mol) in solvent (15 ml) (EtOH in the case of compound 3a, dioxane in the case of compounds 3b-h) was stirred at 50C and treated by adding 3,3-diethoxypropionitrile (4) (1.5 ml, 0.01 mol), then 36% HCl solution (0.86 ml, 0.01 mol). The reaction mixture was refluxed for 2.5-3 h, the suspension (or solution) was cooled to room temperature, and the target product was isolated by the method indicated for each particular compound.

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Reference:
Article; Gazizov, Denis A.; Fedotov, Victor V.; Gorbunov, Evgeny B.; Ulomskiy, Evgeny N.; Yeltsov, Oleg S.; Rusinov, Gennady L.; Rusinov, Vladimir L.; Chemistry of Heterocyclic Compounds; vol. 55; 6; (2019); p. 573 – 577; Khim. Geterotsikl. Soedin.; vol. 55; 6; (2019); p. 573 – 577,5;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development in 2021. Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 184177-83-1, name is 1-((2S,3S)-2-(Benzyloxy)pentan-3-yl)-4-(4-(4-(4-hydroxyphenyl)piperazin-1-yl)phenyl)-1H-1,2,4-triazol-5(4H)-one belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 184177-83-1

10 g of compound of formula A and 76 mL DMSO were added into a reaction flask at room temperature, and stirred until clarification. An alkaline solution previously prepared from 1.4 g sodium hydroxide and 6 g water was further added thereto. The mixture was stirred for 1 h. Then, 10 g of compound of formula IX was added thereto. The mixture was warmed up to 38 C. and reacted for 16 h. After the reaction was completed, the mixture was warmed up to 45 C. 6 mL water was added thereto. The mixture was stirred for 30-60 min. 154 mL water was further added thereto. The mixture was stirred for 1 h, and filtered under suction. The resultant solid was drip washed with 4×50 mL purified water to obtain a wet product. (0249) The wet product and 60 mL of 90% aqueous ethanol solution were added to a reaction flask, warmed up to 65 C., and stirred. After clarification, 1.5 g active carbon was added thereto. The mixture was stirred for 15 min, filter-pressed while hot, and washed with 15 mL of 90% aqueous ethanol solution. Then, the filtrate was warmed up to 65 C., stirred, cooled to 40-45 C. after clarification, crystallized while keeping the temperature for 1 h, further cooled to 0-5 C., crystallized while keeping the temperature for 1 h, and filtered under suction. The resultant solid was first drip washed with 5 mL of 50% aqueous ethanol solution, and then drip washed with 4×50 mL purified water. The solid was collected, placed in a ventilated oven at 50-55 C. and dried for 16 h to obtain 13.2 g of product.

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Reference:
Patent; Zhejiang Ausun Pharmaceutical Co., Ltd.; Zheng, Zhiguo; (23 pag.)US2019/71408; (2019); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 3641-08-5, name is 2H-1,2,4-Triazole-3-carboxamide belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 3641-08-5

General procedure: Ribavirin biosynthesis was assayed using 5 × 109 colony-forming units (CFU) in 1 mL sodium phosphate buffer (30 mM, pH7.0) containing equimolar concentrations of uridine (Urd) and TCA(2.5 mM). Reactions were performed at 60C and 200 rpm in aperiod of 16 h.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 2H-1,2,4-Triazole-3-carboxamide help many people in the next few years.

Reference:
Article; De Benedetti, Eliana C.; Rivero, Cintia W.; Trelles, Jorge A.; Journal of Molecular Catalysis B: Enzymatic; vol. 121; (2015); p. 90 – 95;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 288-36-8, New Advances in Chemical Research in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 288-36-8, name is 1H-1,2,3-Triazole, molecular formula is C2H3N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Intermediate 14f (0556) 4,5-Dibromo-lH-triazole (0557) Br2 (930 g, 5.82 mol) was added dropwise to a stirred solution of lH-triazole (300.00 g, 4.34 mol, 252.10 mL) in H20 (2 L) at 40 to 45 °C. The resulting solution was stirred for a further 1 hour. The precipitate was filtered off and further Br2 (617.28 g, 3.86 mol) was added to the filtrate, then it was kept at 25 °C for 16 hours. A second precipitate was filtered off. The combined filtered off solids were washed with water (1 L x 3), dried under vacuum and re-crystallized from MeOH (-400 mL) to give 4,5-dibromo-lH-triazole (Intermediate 14f; 890 g, 90.39percent yield) as an off-white solid, m/z (ES+) [M+H]+ (0558) 226/228/230.

The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.I hope my blog about 1H-1,2,3-Triazole is helpful to your research.

Reference:
Patent; ASTRAZENECA AB; WARD, Richard, Andrew; JONES, Clifford, David; FERON, James, Lyman; (80 pag.)WO2017/80980; (2017); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics