Category: Triazoles

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. 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. COA of Formula: C2H3N3

To a stirred solution of compound 54 (5.00 g, 74.55 mmol) in DCM (100 mL) was added 3,4-dihydro-2H-pyran (6.90 g, 82.00 mmol) and p-Toluenesulfonic acid (0.62 g, 3.62 mmol), the mixture was stirred at rt for 16 h, TLC showed that the start materials was consumed up, stopped the reaction, concentrated in vacuo, the residue was purified by column (EtO Ac/Hex 1/10 to 1/6) to give compound 55 (9.00 g, 81% yield) as a colorless oil. MS (ESI) (M/Z): [M+H]+ =154.1; 1H NMR (400 MHz, CDC13) delta 7.67 (s, 2H), 5.73 (dd, 7 = 9.1, 2.7 Hz, 1H), 4.03 (ddd, 7 = 11.7, 3.7, 2.4 Hz, 1H), 3.79 – 3.69 (m, 1H), 2.48 – 2.38 (m, 1H), 2.16 – 2.04 (m, 2H), 1.77 – 1.69 (m, 2H), 1.67 – 1.61 (m, 1H).

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 1H-1,2,3-Triazole, in my other articles.

Reference:
Patent; ZHANG, Hai-Jun; (63 pag.)WO2018/217439; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 3641-13-2, New Advances in Chemical Research 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. 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.

General procedure: A mixture of benzil (0.01 mol), aldehydes (0.01 mol), 3-amino-1,2,4-triazole-5-carboxylic acid (0.01 mol), ammonium acetate (0.01 mol) and ceric ammonium nitrate (15 mol%) as a catalyst were refluxed in ethanol (15 mL) for about 3-4 h. The progress of the reaction was monitored by TLC. After completion of reaction, the mixture was cooled to room temperature. The solid formed was filtered and dried. The crude products were recrystallized by ethanol.

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 5-Amino-4H-1,2,4-triazole-3-carboxylic acid.

Reference:
Article; Nikalje, Anna Pratima G.; Ghodke, Mangesh S.; Kalam Khan, Firoz A.; Sangshetti, Jaiprakash N.; Chinese Chemical Letters; vol. 26; 1; (2015); p. 108 – 112;,
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. 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. Recommanded Product: 288-36-8

Intermediate 21: 2-Fluoro-6-(2H-l,2,3-triazol-2-yl)benzoic acid To a solution of 2H-l,2,3-triazole (5.0 g, 72.46 mmol ) in DMF (20 ml) was added cesium carbonate (23.55 g, 72.46 mmol), N,N-dimethylethylenediamine (1.02 g, 7.24 mmol), copper(I) iodide (0.34 g, 1.811 mmol) and 2-fluoro-6-iodobenzoic acid (9.63 g, 36.23 mmol ) at 0-10 C. The reaction was stirred at 125C for 15 min in the microwave and then poured into water (100 ml) and extracted with ethyl acetate (100 ml x 3). The aqueous layer was acidified with dilute HC1 to pH 2 and extracted with ethyl acetate (100 ml x 3). The combined organic layer was washed with brine, dried over sodium sulphate and concentrated in vacuo. This was then purified by column chromatography (0-3% methanol / dichloromethane) to afford the title compound.1H NMR (400 MHz DMSO- d6): delta ppm 7.43-7.47 (m, 1H), 7.66-7.72 (m, 1H), 7.78-7.80 (m, 1H), 8.13 (s, 2H), 13.71 (s, 1H)MS ES+: 208

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 1H-1,2,3-Triazole, in my other articles.

Reference:
Patent; TAKEDA CAMBRIDGE LIMITED; TAKEDA PHARMACEUTICAL COMPANY LIMITED; FIELDHOUSE, Charlotte; GLEN, Angela; ROBINSON, John Stephen; FUJIMOTO, Tatsuhiko; WO2015/55994; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 16681-70-2, New Advances in Chemical Research in 2021.In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, molecular formula is C3H3N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

[0832] lH-1,2,3-triazole-4-carboxylic acid (2.3 mg, 20f.tmol) was combined with HATU (7.7 mg, 20 f.tmol) in DMF(2 mL) and stirred at room temperature for 15 minutes. Compound3 (8 mg, 18 f.tmol) and DIPEA (9.6 f.LL, 55 f.tmol) werethen added. The solution was stirred at room temperature for15 minutes, at which time LCMS showed reaction completion.The solvent was removed in vacuo and the crude residuewas dissolved in EtOH (2 mL). A solution of IN LiOH (183f.LL, 183 flillOI) in water was added, and the resulting solutionwas stirred at room temperature for 30 minutes, at which timeLCMS showed reaction completion. The solvent wasremoved in vacuo and the crude residue was purified by reverse phase chromatography to yield Compound a (3 mg) asa TFA salt. MS m/z [M+Hr calc’d for C24H27CIFN50 4 ,504.17. found 504.

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 1H-[1,2,3]Triazole-4-carboxylic acid, 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.; US2015/210690; (2015); 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. 202931-88-2, name is 1-Methyl-1H-1,2,3-triazole-5-carbaldehyde belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 202931-88-2

[00377] (£’)-3-(l-methyl-lH-l,2,3-triazol-5-yl)-l-(thiazol-2-yl)prop-2-en-l-one was prepared from l-(thiazol-2-yl)-2-(triphenyl- 5-phosphanylidene)ethan-l-one and 1-methyl- lH-l,2,3-triazole-5-carbaldehyde via Wittig reaction using synthetic procedures described for the preparation of the analog SW209415. ESI-MS (m/z): 221.1 [M+H]+.

If you are hungry for even more, make sure to check my other article about 202931-88-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; CASE WESTERN RESERVE UNIVERSITY; BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM; MARKOWITZ, Sanford D.; READY, Joseph; ZHANG, Yongyou; ANTCZAK, Monika; WILLSON, James K.V.; POSNER, Bruce A.; GREENLEE, William; (254 pag.)WO2016/168472; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference 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.

Intermediate 38: 4-Cyclohexyl-4- [ (1, 2, 4-triazol-1-yl) methyl] piperidine Step A: 1-BOC-4-Cyclohexyl-4- [ (1, 2, 4-triazol-1-yl) methyl] piperidine To a solution of 1-BOC-4-cyclohexyl-4- [ (methanesulfonyloxy) methyl] piperidine (375 mg, 1 mmol) in DMF (10 mL) was added Na-1, 2,4-triazole (273 mg, 3 mmol), and the solution was stirred at 90-100C for 12 h. After DMF was distilled off in vacuo, the reaction mixture was quenched wirh a saturated aqueous NH4C1 solution, and the organic material was extracted with EtOAc. The extracts were dried over MgS04, filtered, and concentrated in vacuo. The residue was purified by column chromatography (eluent : acetone/DCM = 3/1) to give the title compound (313 mg, 90%). MS [M+H] = 349 (M+1)

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 Sodium 1,2,4-triazol-1-ide is helpful to your research.

Reference:
Patent; LG LIFE SCIENCES LTD.; YAMANOUCHI PHARMACEUTICAL CO., LTD.; WO2005/47253; (2005); 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

To a reaction of H-, 2, 4-triazole-3 -carboxylic acid (226 mg, 2.0 mmol) and 3- methoxybenzylamine (0.28 mL, 2.2 mmol) in dry DMF (10 mL) was added 1- hydroxybenzotriazole monohydrate (337 mg, 2.2 mmol) and EDC (N-(3- Dimethylaminopropyl)-N’-ethylcarbodiimide) (422 mg, 2.2 mmol) followed by N- methylmorpholine (0.88 mL, 8.0 mmol via syringe). The mixture was stirred at room temperature under nitrogen and the solids were gradually dissolved. The contents were stirred at room temperature for 24.0 h, and then slowly diluted into iced water and extracted with DCM (2 x 50 mL). The DCM phase was washed with ice cold water (2 x 100 mL). The DCM phase was dried over anhydrous Na2S04, concentrated under reduced pressure and chromatographed on silica gel using MeOH and DCM (2:98) as eluents to get the desired amide 7 (170.9 mg, 37 % yield) as a white solid compound. -NMR (400 MHz, DMSO-de): <514.76-14.65 (m, 1H), 9.15 (br s, 1H), 8.48 (br s, 1H), 7.23 (t, J= 8 Hz, 1H), 6.90-6.88 (m, 2H), 6.82-6.80 (m, 1H), 4.43 (d, J= 6 Hz, 2H), 3.73 (s, 3H) ppm. MH+ = 233.2 m/z. 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:
Patent; THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE; NATIONAL JEWISH HEALTH; WEMPE, Michael Fitzpatrick; VAZQUEZ-TORRES, Andres; DAI, Shaodong; (72 pag.)WO2020/41556; (2020); 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. 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. Recommanded Product: 3,5-Dimethyl-4H-1,2,4-triazole

Included at room temperature3,5-Dimethyl-1,2,4-triazole 10.5 g (0.108 mol)And dehydrated N,N-dimethylformamide 60mL20.7 g (0.107 mol) of 28percent sodium methoxide methanol solution was added to the solution.After stirring for 20 minutes,21.6 g (0.109 mol) of 3-chloropropyltrimethoxydecane was added.Stir at 90~93 ° C for 4 hours.After cooling the suspension reaction solution to 2 ° C,Filter out insoluble matter,Then,The solvent of the filtrate is distilled off under reduced pressure,And filtering out a small amount of insoluble matter generated,Obtained a brownish liquid 24.6 g (0.095 mol,Yield 87.8percent).

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 7343-34-2.

Reference:
Patent; SHIKOKU CHEMICALS CORPORATION; MURAI,, TAKAYUKI; TANIOKA, MIYA; IIDA, SHUSAKU; KATSUMURA, MASATO; YAMAJI, NORIAKI; IMAMINE, TAKAHITO; TSUJINO, MASAHIKO; HIRAO, HIROHIKO; (52 pag.)TW2018/41929; (2018); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 252742-72-6, New Advances in Chemical Research 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. 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.

Example 408 5-[4-(2-(2-Fluorophenyl)acetyl]piperidino]methyl-2,4-dihydro-[1,2,4]triazol-3-one After adding 150 mg of 5-chloromethyl-2,4-dihydro-[1,2,4]triazol-3-one, 335 mg of 2-(2-fluorophenyl)-1-(piperidin-4-yl)ethanone hydrochloride and 180 mg of anhydrous potassium carbonate to acetonitrile, the mixture was stirred overnight at room temperature. Water was added to the reaction mixture and extraction was performed with ethyl acetate. The organic layer was washed with water and saturated brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. Diethyl ether was added to the residue and the mixture was filtered to obtain the title compound (23 mg, 7percent yield). 1H-NMR (400 MHz, DMSO-d6); delta (ppm) 1.42-1.56 (2H, m), 1.79-1.87 (2H, m), 1.98-2.07 (2H, m), 2.45-2.55 (1H, m), 2.75-2.82 (2H, m), 3.25 (2H, s), 3.89 (2H, s), 7.09-7.16 (2H, m), 7.19-7.32 (2H, m), 11.20 (1H, s), 11.26 (1H, br s).

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 3-(Chloromethyl)-1H-1,2,4-triazol-5(4H)-one.

Reference:
Patent; Ozaki, Fumihiro; Ono, Mutsuko; Kawano, Koki; Norimine, Yoshihiko; Onogi, Tatsuhiro; Yoshinaga, Takashi; Kobayashi, Kiyoaki; Suzuki, Hiroyuki; Minami, Hiroe; Sawada, Kohei; US2004/167224; (2004); A1;,
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. 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. Application In Synthesis of 1H-[1,2,3]Triazole-4-carboxylic acid

[0424] To a stirred solution of (2S,4S)-4-amino-5-biphenyl-4-yl-2-(2-hydroxyethoxymethyl)pentanoic acid ethylester (17 mg, 47 flillOI) in DMF (0.3 mL), was added lH-1,2,3-triazole-4-carboxylic acid (5.3 mg, 47 f.tmol) and HATU(18mg, 47 f.tmol), followed by DIPEA(25 f.LL, 141 f.tmol). Themixture was stirred for 30 minutes, then concentrated under reduced pressure to yield crude Compound I, which was usedin the next step without purification.

If you are hungry for even more, make sure to check my other article about 16681-70-2, the application of this compound in the production field has become more and more popular.

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