Triazoles

Related Products of 41253-21-8, 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. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, molecular formula is C2H2N3Na, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

[0433] 1,2,4-Triazole sodium salt (236 mg, 2.7 mmol) was added to a solution of the title compound from Example 7, Step 1 (1.9 mmol) in 1.5 ml of DMF and the resulting mixture was heated at 50 C. for 18 hours. The cooled reaction mixture was diluted with 10% aqueous sodium bicarbonate (15 ml) and extracted with three 15 ml portions of dichloromethane. The combined organic layers were dried (Na2SO4) and concentrated to an oil. Purification by flash chromatography (10 micron mesh silica gel; elution with methanol: dichloromethane, 3:97 in volume) afforded the title compound as an oil (415 mg, 70% yield). [0434] Mass spectrum: m/z 314, 316 (m, m+2). [0435] 13C NMR (125 MHz, CDCl3) delta 152.5, 143.5, 141.9, 141.6, 134.2, 133.4, 131.4, 130.3, 129.3, 127.8, 127.7, 122.6, 53.4 ppm.

In the meantime we’ve collected together some recent articles in this area about 41253-21-8 to whet your appetite. Happy reading!

Reference:
Patent; Pfizer Inc.; US2004/229874; (2004); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 16227-12-6, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 16227-12-6, name is 4-Phenyl-4H-1,2,4-triazole, molecular formula is C8H7N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

EXAMPLE 131 4-phenyl-1-(tetradec-1-yl)-(1,2,4)-triazolium bromide 0.100 g (0.0007 mol) 4-phenyl-(1,2,4)-triazole 1 and 0.572 g (0.0021 mol) 1-bromotetradecane 2 are combined in a pressure tube. The reaction mixture is stirred 3 d at 110 C. To the resulted solid 10 ml petroleum ether was added. The product is filtered off, washed with petroleum ether/THF 1:1 and diethylether, and is dried in high vacuum. M 422.53 C22H36N3Br Yield: 0.242 g (74%) 1H-NMR DM-233 (300 MHz/DMSO): (ppm)=0.85 (t, 3H, 20-H); 1.24 (m, 24H, 9-19-H); 1.94 (q, 2H, 8-H); 4.42 (t, 21-1,7-H); 7.71 (m, 3H, 5/5’/6H); 7.82 (d, 2H, 4/4′-H); 9.78 (s, 1H, 1-H); 10.79 (s, 1H, 2-H) 13C-NMR DM-233 (75.475 MHz/DMSO):

In the meantime we’ve collected together some recent articles in this area about 4-Phenyl-4H-1,2,4-triazole to whet your appetite. Happy reading!

Reference:
Patent; TECHNISCHE UNIVERSITAET DRESDEN; US2011/105761; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 288-88-0, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 288-88-0, name is 1H-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 of 1,2,4-triazole (4.06 g, 58.7 mmol), potassium carbonate (9.05 g, 65.5 mmol), 4-fluorobenzaldehyde (6.3 ml, 58.7 mmol), and copper(I) oxide (0.26 g, 1.82 mmol) in pyridine (30 ml) is heated under nitrogen atmosphere at reflux overnight. After pyridine is distilled, the residue is diluted with chloroform, filtered, and washed with chloroform. The combined filtrate is washed with water, dried over magnesium sulfate, and concentrated in vacuo. The crude material is purified by column chromatography on silica with hexane/ethyl acetate (1:2) to give 4-(1,2,4-triazol-1-yl)-benzaldehyde and with ethyl acetate/methanol (19:1) to give 4-(1,3,4-triazol-1-yl)-benzaldehyde.

Therefore, this conceptually novel strategy might open impressive avenues to establish green and sustainable chemistry platforms.In my other articles, you can also check out more blogs about 1H-1,2,4-Triazole.

Reference:
Patent; Novartis AG; US5977075; (1999); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. 1001401-62-2, name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. category: Triazoles

General procedure: A mixture of the primary amine, 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid 31 (0.33 g, 1.6 mmol), N,N-diisopropylethylamine(DIPEA, 2.5 mL, 14.7 mmol), and 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate(HATU, 0.91 g, 2.4 mmol) in DMF (3.2 mL) was stirredat room temperature for 17 h. The reaction was quenched by theaddition of water, and the mixture was extracted with EtOAc.The organic layer was washed with brine, dried over Na2SO4, filtered,and concentrated under reduced pressure. The resulting residuewas purified by preparative HPLC to obtain the title compound7a as a colorless solid (0.18 g, 28% over 2 steps).

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, in my other articles.

Reference:
Article; Futamura, Aya; Nozawa, Dai; Araki, Yuko; Tamura, Yunoshin; Tokura, Seiken; Kawamoto, Hiroshi; Tokumaru, Yuichi; Kakihara, Sora; Aoki, Takeshi; Ohtake, Norikazu; Bioorganic and Medicinal Chemistry; vol. 25; 20; (2017); p. 5203 – 5215;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development in 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world.288-36-8, name is 1H-1,2,3-Triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 288-36-8

4,5-dibromo-2H-l,2,3-triazole. Bromine (15 mL) was added dropwise to a stirred solution of 2H-l,2,3-triazole (15.0 g, 217 mmol) in water (200 mL) at 0C. Once addition was completed, the mixture was stirred for 12 hours at room temperature. The resultant mixture was filtered off and washed with water, dried over sodium sulfate and recrystallized from methanol to afford 4,5-dibromo-2H-l,2,3-triazole as a dark brown solid (29.8 g, 60.8%).

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 1H-1,2,3-Triazole ,and how the biochemistry of the body works.

Reference:
Patent; CONSTELLATION PHARMACEUTICALS, INC.; ALBRECHT, Brian, K.; GEHLING, Victor, S.; HEWITT, Michael, C.; TAYLOR, Alexander, M.; HARMANGE, Jean-Christophe; WO2012/151512; (2012); A2;,
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. 1001401-62-2, name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. name: 2-(2H-1,2,3-Triazol-2-yl)benzoic acid

A solution of (3R, 6i?)-6-methylpiperidin-3-ol (5.31 g, 46.1 mmol), 2-(2H-l,2,3- triazol-2-yl)benzoic acid (10.5 g, 55.3 mmol), EDC (17.7 g, 92.0 mmol), l-hydroxy-7- azabenzotriazole (12.6 g, 92.0 mmol), and triethylamine (19.3 mL, 138 mmol) in DMF (300 mL) was stirred at 50 C overnight, then diluted with saturated aqueous sodium bicarbonate and extracted 3x with ethyl acetate. The organics were washed with brine, dried over magnesium sulfate, filtered, and concentrated. The crude material was purified by silica gel gradient chromatography (0-100% ethyl acetate in hexanes), providing the titled compound as a pale yellow solid. LRMS m z (Mu+Eta) 287.3 found, 287.1 required.

If you are hungry for even more, make sure to check my other article about 1001401-62-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; SKUDLAREK, Jason, W.; WO2015/95442; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 22300-52-3, name is 4,5-Dibromo-2H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 4,5-Dibromo-2H-1,2,3-triazole

3- Fluoro-4-nitrotoluene (1367 g, 1 eq.), 4,5-dibromo-2/-/-1 ,2,3-triazole (1999 g, 1 eq.), K2C03 (1340 g, 1.1 eq.) and DMF (1 1 L) is heated to 75 C for 15 h. The reaction mixture is cooled to 22 C and treated with water (18 L). The resulting suspension is filtered, washed with water (4 L). The product is washed with isopropanol (5 L), and dried under reduced pressure to yield a white solid. Yield: 281 1 g, 88%. Purity: 100% a/a (LC-MS method 2). 1H NMR (400 MHz, DMSO) <5: 8.10 (d, J = 8.3 Hz, 1 H), 7.86 (d, J = 1.0 Hz, 1 H), 7.66 (dd, J1 = 0.9 Hz, J2 = 8.3 Hz, 1 H), 2.51 (s, 3 H). 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 22300-52-3. Reference:
Patent; IDORSIA PHARMACEUTICALS LTD; DOeRRWAeCHTER, Patric; SCHMIDT, Gunther; (48 pag.)WO2018/202689; (2018); A1;,
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. 4928-87-4, name is 1,2,4-Triazole-3-carboxylic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 4928-87-4

Single crystals of 1 were prepared by a branched tube method [34], 1H-1,2,4-triazole-3-carboxylic acid (0.117 g, 1 mmol), lead(II) nitrate (0.331 g, 1 mmol) and potassium bromide (0.119 g, 1 mmol) were placed in the bottom main of a branched tube. Water was carefully added to fill both arms, and then the arm to be heated was placed in oil bath at 60 C. After 7 days, colorless crystals were deposited in the cooler arm which were filtered off, washed with water and air dried. (0.225 g, yield 54%),

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 4928-87-4.

Reference:
Article; Safarifard, Vahid; Morsali, Ali; Inorganica Chimica Acta; vol. 405; (2013); p. 203 – 208;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 4923-01-7, 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. 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.

3-methyl-1H-1,2,4-triazol-5-amine (4.7747 g, 48.7 mmol, 1 eq.) and 2- bromomalonaldehyde (8.08 g, 53.5 mmol, 1.1 eq.) were dissolved in AcOH (50 ml) and heated15 at 60 C for 18 hours under inert conditions. The reaction mixture was concentrated under vacuo, then the crude material was redissolved in EtOAc and filtered. The filtrate was combined with NaHCO3, and the aqueous layer was extracted with EtOAc (x3). The combined organic extracts were dried over Na2SO4, filtered and concentrated in vacuo. The crude material was absorbed onto silica and purified by column chromatography (Si02, 100% DCM, then 98:2 DCM:MeOH)20 to give 6-bromo-2-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (2.22g, 21%, mlz: 215.1 [M+H]+) as an off-white solid.

This is the end of this tutorial post, and I hope it has helped your research about 4923-01-7!

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; GILLESPIE, Robert Jack; HASANE, Ratni; SARIE, Jerome Charles; (89 pag.)WO2016/184832; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 584-13-4, New Advances in Chemical Research 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. 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: In a typical experiment Pd(OAc)2 (5.6mg, 0.025mmol), triphenylphosphine (13.2mg, 0.05mmol), iodoalkene (1-4) or iodoarene (5-19) (1mmol) were dissolved in DMF (10mL) under argon in a three-necked flask equipped with a reflux condenser and a balloon on the top. Aminotriazole nucleophile (a, b or c) (1.2mmol) and triethylamine (0.5mL) were added. The atmosphere was changed to carbon monoxide. (Caution: High pressure carbon monoxide should only be used with adequate ventilation (hood) using CO sensors as well.) The reaction was conducted for the given reaction time upon stirring at 70C. The mixture was then concentrated and evaporated to dryness. Toluene (15mL) was added to the residue, the precipitate (product) was filtered, washed with water on the filter and dried. The off-white powder-like material was dissolved in methanol, the palladium-black was filtered off and methanol was evaporated.

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Reference:
Article; Gergely, Mate; Boros, Borbala; Kollar, Laszlo; Tetrahedron; vol. 73; 48; (2017); p. 6736 – 6741;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics