Category: Triazoles

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. 4314-22-1, name is 2-(1H-1,2,3-Triazol-1-yl)acetic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Formula: C4H5N3O2

Oxalyl chloride (0.95 mL, 11 mmol) was added dropwise to a suspension of 2- (1- 1, 2,3-triazolyl)) acetic acid (Step B, 1.27 g, 10 mmol) in 10 mL CH2C12 containing 0.05 mL DMF. Vigorous effervescence was observed. This mixture was stirred at room temperature for 4 h and cooled to-78C. A solution of N. O- dimethylhydroxylamine hydrochloride (1.2 g, 13 mmol) and diisopropylethyl amine (6.0 mL, 35 mmol) in 10 mL CH2C12 was added slowly over 3 min. The mixture was then allowed to warm to room temperature and stirred overnight. The reaction mixture was then diluted with ether until no additional precipitate appeared. The solid was filtered and washed with ether. The filtrate was concentrated and the residue was purified on silica gel using EtOAc as solvent to provide the title compound as amorphous solid. 1H NMR (400 MHz, CDC13) : 8 3.252 (s, 3H0, 3.812 (s, 3H), 5.379 (s, 2H), 7.753 & 7.761 (s’s, 2H).

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Reference:
Patent; MERCK & CO., INC.; WO2003/87037; (2003); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 162848-16-0, 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, 162848-16-0, name is 4-[1,2,4]Triazol-1-yl-benzoic acid, molecular formula is C9H7N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Example 5: Synthesis of 4-[l,2,4]triazol-l-yl-benzoic acid 3-(2-methyl-l,2,3,4- tetrahydro-isoquinolin-7-ylcarbamoyl)-benzylamide (Cpd 178, Table 1); Dissolve 4-[l,2,4]triazol-l-yl-benzoic acid (29 mg, 0.15 mmol) and CDI (Nu,Nu’- carbonyldiimidazole) (25 mg, 0.15 mmol) in DMF (2 mL) and stir the mixture for 1 h. To this add 3-aminomethyl-N-(2-methyl-l,2,3,4-tetrahydro-isoquinolin-7-yl)-benzamide dihydrochloride (50 mg, 0.14 mmol) and triethylamine (0.095 mL, 0.68 mmol) and stir the mixture overnight. Dilute the mixture with water (1 mL) and trifluoroacetic acid (0.2 mL) and purify by prep-HPLC (5 -70 , CH3CN/H20) to give the desired product 4- [l,2,4]triazol-l-yl-benzoic acid 3-(2-methyl-l,2,3,4-tetrahydro-isoquinolin-7- ylcarbamoyl)-benzylamide (51 mg, 0.086 mmol). MS, electrospray 467.4 (M+H), rt 1.05 min.

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Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; COOK, Brian Nicholas; KOWALSKI, Jennifer A.; LI, Xiang; MARSHALL, Daniel Richard; SCHLYER, Sabine; SIBLEY, Robert; SMITH-KEENAN, Lana Louise; SOLEYMANZADEH, Fariba; SORCEK, Ronald John; YOUNG, Erick Richard Roush; ZHANG, Yunlong; WO2012/6203; (2012); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 1455-77-2, 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, 1455-77-2, name is 3,5-Diamino-1,2,4-triazole, molecular formula is C2H5N5, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Then, an amidation step is carried out, the reaction equation being as follows: The 1.49g (15mmol, 1eq) of the compound of Formula III-1 3,5-amino-1,2,4-triazole, 3.64 g (36 mmol, 2.4 eq) of triethylamine were dissolved in 50 mL of dichloromethane,50 mL of a dichloromethane solution containing 9.39 g of the compound shown by the formula 11-1 (4- (4′-nitrophenyl) benzoyl chloride) was slowly added dropwise at 0 ° C. After completion of the dropwise addition,The reaction solution was allowed to react at room temperature for 24 h,Subsequently, the reaction solution was washed with 200 mL of pure water, After the layers were separated, the organic phase was washed twice with saturated sodium carbonate solution and then dried over anhydrous magnesium sulfate,The organic phase was evaporated to give a crude product,The crude product was recrystallized to give 6.52 g of the compound of formula IV-1,The yield was 80percent.

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Reference:
Patent; Fuyang Xinyihua Material Technology Co., Ltd; Wu, Jingwei; (17 pag.)CN105294664; (2016); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Product Details of 15988-11-1

General procedure: A mixture of malononitrile (1.0 mmol), aromatic aldehyde (1.0 mmol), 4-ar ylurazole (1.0 mmol), and nano-ZrO2(20 mol %) was heated at 100C for 30-40 min. After completion of the reaction as indicated by TLC, the reaction mixture was cooled to room temperature. The solid residue was dissolved in hot ethanol and centrifuged to separate the catalyst. By recrystallization from ethanol, pure products were obtained.

In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to serve as an indispensable tool to navigate research efforts intended to model. Read on for other articles about 15988-11-1.

Reference:
Article; Anaraki-Ardakani, Hossein; Heidari-Rakati, Tayebe; Oriental Journal of Chemistry; vol. 32; 3; (2016); p. 1625 – 1629;,
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. 4922-98-9, name is 5-Phenyl-1H-1,2,4-triazol-3-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 5-Phenyl-1H-1,2,4-triazol-3-amine

General procedure: 3-Amino-1,2,4-triazole 8a?f (1.0 mmol), o-hydroxybenzaldehyde9a?e (1.0 mmol), acetone (10) (0.22 ml,3.0 mmol), and abs. EtOH (2 ml) were mixed in amicrowave process vial, and then 4 N solution of HCl indioxane (0.07 ml, 0.3 mmol) was added. The mixture wasirradiated at 150°C for 30 min. The reaction mixture wascooled by an air flow and stirred for 24 h at roomtemperature for complete precipitation of the product. Theprecipitate was filtered off, washed with EtOH (1 ml) andEt2O (3×1 ml), and dried. Compounds 1a?w were obtainedin a form of white solids.

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Reference:
Article; Guemue?, Mustafa K.; Gorobets, Nikolay Yu.; Sedash, Yuriy V.; Chebanov, Valentin A.; Desenko, Sergey M.; Chemistry of Heterocyclic Compounds; vol. 53; 11; (2017); p. 1261 – 1267; Khim. Geterotsikl. Soedin.; vol. 53; 11; (2017); p. 1261 – 1267,7;,
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. 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

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

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

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