Day: July 9, 2021

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

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. 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

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. 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 7411-23-6, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 7411-23-6, name is 3,5-Dibromo-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.

Two hatches of phenylboronic acid (13 5 g, 111 mmol, 1.0 eq), 3,5-dibromo~lH-i,2,4~ triazoe (25 g, 110 mmol, 1.0 eq), Cu(QAc)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 mmol) in toluene (250 mJL) was degassed and purged with O2 for three times, and then the mixture was stirred at 80 C for 16 h under O? 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 SepaFlash1 Silica Flash Column, eluent of 0-10% ethyl acetate/petroleum ether gradient 80 mL/min) 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 NaHC03 (100 mL c 1), brine (100 mL), dried over anhydrous Na2S04, filtered and concentrated under reduced pressure to give 3, 5-dibromo-l -phenyl-1 ,2,4-triazole (29.2 g, 37% yield, 85% purity) as a light yellow solid. i.C-YlS (ESI): m/z (M+H) 303.9.

In the meantime we’ve collected together some recent articles in this area about 3,5-Dibromo-1H-1,2,4-triazole to whet your appetite. Happy reading!

Reference:
Patent; AN2H DISCOVERY LIMITED; JOHNSTON, Jennifer; FATHEREE, Paul Ross; (225 pag.)WO2019/109099; (2019); 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. 7170-01-6, name is 3-Methyl-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 7170-01-6

5-(3-Methyl-[1,2,4]triazol-1-yl)-pyrazine-2-carboxylic acid A mixture of methyl 5-chloropyrazine-2-carboxylate (0.75 g), K2CO3 (1.8 g) and 3-methyl-1H-1,2,4-triazole (1.2 g) in N,N-dimethylformamide (6 mL) is heated to 100 C. overnight. Analysis of the crude mixture by LCMS shows saponified product. The product is acidified with 1 N hydrochloric acid and the precipitate is filtered and washed with water and diethyl ether to afford the title compound. LC (method 20): tR=1.21 min; Mass spectrum (APCI): m/z=206 [M+H]+.

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 3-Methyl-1H-1,2,4-triazole, in my other articles.

Reference:
Patent; Neurocrine Biosciences, Inc.; Boehringer Ingelheim International GmbH; NOSSE, Bernd; ECKHARDT, Matthias; HIMMELSBACH, Frank; LANGKOPF, Elke; ASHWEEK, Neil J.; HARRIOTT, Nicole; US2014/45823; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 16681-65-5, 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. 16681-65-5, name is 1-Methyl-1H-1,2,3-triazole, molecular formula is C3H5N3, 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 1 -methyl- lH-l,2,3-triazole (860 mg, 10.4 mmol) in THF (10 mL) at -78 C, was added dropwise -BuLi (5.0 mL, 12.4 mmol, 2.5 M). The mixture was stirred at -78 C for 2 hours before addition of Bu3SnCl (3.7 g, 11.4 mmol). The mixture was stirred at -78 C for 1 hour and then room temperature for 1 hour. The mixture was concentrated under vacuum and hexane was added. The insoluble material was filtered and the filtrate was concentrated under vacuum to afford l-methyl-5-(tributylstannyl)-lH-l ,2,3-triazole (3.1 g, 80 %) as yellow oil which was used directly in the next step.

This is the end of this tutorial post, and I hope it has helped your research about 16681-65-5!

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; GENENTECH, INC.; CHEN, Jinhua; DING, Charles Z.; DRAGOVICH, Peter; FAUBER, Benjamin; GAO, Zhenting; LABADIE, Sharada; LAI, Kwong Wah; PURKEY, Hans Edward; ROBARGE, Kirk; WEI, Binqing; ZHOU, Aihe; WO2015/140133; (2015); 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. 13273-53-5, name is 4-Bromo-1-methyl-1H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Quality Control of 4-Bromo-1-methyl-1H-1,2,3-triazole

Step 5 To the above solution was added 4-bromo-1-methyl-1H-1,2,3-triazole (XXXII) (0.064 g, 0.395 mmol), Pd(dppf)Cl2-CH2Cl2 adduct (0.032 g, 0.040 mmol) and 2 M aqueous solution of potassium carbonate (0.395 mL, 0.790 mmol). The reaction mixture was heated overnight at 95 C. The reaction mixture was absorbed on silica and purified by ISCO using CHCl3/7N NH3 in MeOH (0?5%) followed by preparative TLC to obtain N-(6-(1-methyl-1H-1,2,3-triazol-4-yl)isoquinolin-3-yl)-1-(3,3,3-trifluoropropyl) piperidine-4-carboxamide (271) as a beige solid (0.011 g, 0.025 mmol, 6.44% yield). 1H NMR (DMSO-d6, 500 MHz) delta ppm 1.60-1.73 (m, 2H), 1.76-1.84 (m, 2H), 1.92-2.01 (m, 2H), 2.41-2.60 (m, 5H), 2.94 (br d, J=11.25 Hz, 2 H), 4.14 (s, 3H), 8.01 (dd, J=8.51, 1.37 Hz, 1H), 8.11 (d, J=8.51 Hz, 1H), 8.28 (s, 1H), 8.50 (s, 1H), 8.73 (s, 1H), 9.11 (s, 1H), 10.55 (s, 1H); ESIMS found for C21H23F3N6O m/z 433.2 (M+1).

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 4-Bromo-1-methyl-1H-1,2,3-triazole ,and how the biochemistry of the body works.

Reference:
Patent; Samumed, LLC; KC, Sunil Kumar; Mittapalli, Gopi Kumar; Hofilena, Brian Joseph; Marakovits, Joseph Timothy; Chiruta, Chandramouli; Mak, Chi Ching; Cao, Jianguo; (324 pag.)US2017/313681; (2017); 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. COA of Formula: C3H5N3

Example 43a: (4-chloro-2-methoxy-3-((6-(trifluoromethyl)pyridin-3-yl)methyl)quinolin-6-yl)(1,2-dimethyl-1H-imidazol-5-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanol A solution of n-BuLi (2.5 M in hexanes, 1.25 mL, 3.12 mmol) was added dropwise by syringe to a solution of 1 -methyl- 1 H- 1 ,2,3-triazole (268 mg, 3.22 mmol) in dry THF (32 mL) in a dry ice- methanol bath. The suspension was stirred for 30 minutes, slowly allowing the reaction mixture to warm to -10 C, (4-Chloro-2-methoxy-3-((6-(trifluoromethyl)pyTidin-3-yl)methyl)quinoiin-6- yi)(l ,2-dimethyl-lH-imida.zol-5-yl)methanone (0.500 g, 1 ,05 mmol, Intermediate 45: step f) in dry THF (5 mL) was added to the mixture via syringe and the resulting mixture was allowed to warm to ambient temperature overnight. The reaction was quenched with water. Brine was added and the aqueous mixture was extracted with ethyl acetate. The combined organic layers were dried (Na2S04), filtered, and concentrated. The crude product was purified by flash column chromatography (silica gel, 0-8% MeOH-DCM) to provide the title compound.JH NMR (500MHz, CDC1 delta 8.69 (d, J = 1.7 Hz, 1H), 8.24 (d, J = 1.9 Hz, 1H), 8.22 (s, IH), 7.79 – 7.76 (m, 1H), 7.75 (d, J = 8.7 Hz, 1H), 7.57 (d, J = 8.1 Hz, 1H), 7.42 (dd, J = 8.7, 2.0 Hz, 1H), 6.97 (s, 1H), 5.95 (s, 1H), 4.30 (s, 2H), 4.08 (s, 3H), 3.88 (s, 3H), 3.33 (s, 3H), 2.12 (s, 3H); MS m/e 557.8 [M+H]+.Example 43a was purified by ehiral SFC (ChiralPak AD-H, 70:30 C02:mixture of MeOH/iPrOH (50:50 with 0.3% /PrNH2)) to provide two pure enantiomers. The first eluting enantiomer was Example 43b: 1H NMR (400 MHz, CDC13) delta 8.72 (d, J = 1 .7 Hz, 1H), 8.21 (d, J = 2.1 Hz, 1H), 7.78 (dd, J —— 8.1 , 1 .7 Hz, I I I). 7.74 (d, J —— 8.7 Hz, 1 H), 7.58 id, J = 7.9 Hz,I I I). 7.40 (dd, J —– 8.7, 2,2 Hz, i l l). 7.50 (s, I H), 6.04 (s, 1H), 4.34 (s, 2H), 4.08 (s, M i l 3.89 (s,3H), 3.36 (s, 3H), 2.24 (s, 3H); MS m/e 557.2 [MJ+. The second eluting enantiomer was Example 43c: H NMR (400 MHz, CDC13) delta 8.73 (d, J = 1.8 Hz, 5 H), 8.20 (d, J === 2.0 Hz, 1H), 7.80 – 7.73 (m, 2H), 7.58 (d, J = 8.0 Hz, 1 H), 7.40 (dd, J = 8.7, 2.1 Hz, 1H), 7.52 (s, IH), 6.06 (s, IH), 4.35 (s, 21 1). 4.08 (s, 3H), 3.90 (s, 3H), 3.37 (s, 3H), 2.26 (s, 3H); MS m/e 557.2 i VI i

If you are hungry for even more, make sure to check my other article about 16681-65-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; JANSSEN PHARMACEUTICA NV; LEONARD, Kristi A.; BARBAY, Kent; EDWARDS, James P.; KREUTTER, Kevin D.; KUMMER, David A.; MAHAROOF, Umar; NISHIMURA, Rachel; URBANSKI, Maud; VENKATESAN, Hariharan; WANG, Aihua; WOLIN, Ronald L.; WOODS, Craig R.; FOURIE, Anne; XUE, Xiaohua; CUMMINGS, Maxwell D.; JONES, William Moore; GOLDBERG, Steven; WO2015/57205; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics