Day: September 29, 2021

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. 288-36-8

To a solution of 2-iodobenzoic acid (3.0 g, 12.1 mmol) in DMF was added 1,2,3- triazole (1.5 g, 21.7 mmol), Cs2CO3 (7.1 g, 21.7 mmol), Cul (114 mg, 0.6 mmol), and trans-N,N?dimethylcyclohexane- 1 ,2-diamine (310 mg, 2.2 mmol). After heating at 120 C for 10 mm in amicrowave reactor, the mixture was cooled to room temperature, diluted with EtOAc, and filtered through Celite. The filtrate was concentrated in vacuo and the crude residue was purified by silica gel chromatography (MeOH in DCM with 0.1% AcOH) to give Intermediate N as the faster eluting isomer. ?H NMR (DMSO-d6, 500MHz) oe 13.05 (brs, 1 H), 8.12 (s, 2H), 7.8 1-7.52 (m, 4H).

If you are hungry for even more, make sure to check my other article about 288-36-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; REGER, Thomas, S.; ROECKER, Anthony, J.; (0 pag.)WO2016/85783; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 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. SDS of cas: 16681-65-5

A solution of 1-methyl-1H-1, 2, 3-triazole (3.0 g, 36.1 mmol) in anhydrous THF (100 mL) was cooled to -78 , followed by the addition of butyllithium (15.89 mL, 39.7 mmol) dropwise to give a yellow suspension. The reaction mixture was stirred at -78 for 1 h before N-methoxy-N-methylacetamide (6.52 g, 63.2 mmol) was added. The white suspension was then allowed to warm to 10 and stirred for 16 h. The reaction was quenched with MeOH. This solution was purified by column chromatography on silica gel (petroleum ether /EtOAc 3: 1to 1: 1) to give the product as a solid.1H-NMR: (Chloroform-d400MHz) delta 8.16 (s, 1H) , 4.31 (s, 3H) , 2.58 (s, 3H)

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 16681-65-5, and we look forward to future research findings.

Reference:
Patent; MERCK SHARP & DOHME CORP.; ARASAPPAN, Ashok; BUNGARD, Christopher James; FRIE, Jessica L.; HAN, Yongxin; HOYT, Scott B.; MANLEY, Peter J.; MEISSNER, Robert S.; PERKINS, James; SEBHAT, Iyassu K.; WILKENING, Robert R.; (140 pag.)WO2016/29454; (2016); 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

Example A32 a) Preparation of intermediate 84 CuI (1.71 g, 8.9 mmol) and N,7V-dimethylethylenediamine (1.91 ml, 17.92 mmol) were added to a mixture of 2-amino-5-iodopyridine (5.03 g, 22.4 mmol), 3-methyl- IH- 1,2,4- triazole (2.42 g, 29.1 mmol), and Cs2CO3 (14.60 g, 44.81 mmol) in DMF (40 ml). The r.m. was heated at 110 0C for 7 h., the r.m. was cooled, EtOAc was added and the mixure was washed with water. The water layer was extracted 5 times with EtOAc. The combined organic layers were dried (MgSO4), filtered and the solvent was evaporated in vacuo. The residue was purified by RP preparative EtaPLC [RP Shandon Etayperprep Cl 8 BDS (8 mum, 250 g, LD. 5 cm); mobile phase: a gradient of (0.25 % NH4HCO3 solution in water)/MeOH/CH3CN]. The product fractions were collected and the solvent was evaporated. Yield: 1.5 g of intermediate 84 (38 %).

If you are hungry for even more, make sure to check my other article about 7170-01-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ORTHO-MCNEIL-JANSSEN PHARMACEUTICALS, INC; GIJSEN, Henricus, Jacobus, Maria; BISCHOFF, Francois Paul; ZHUANG, Wei; VAN BRANDT, Sven, Franciscus, Anna; SURKYN, Michel; ZAJA, Mirko; BERTHELOT, Didier, Jean-Claude; DE CLEYN, Michel, Anna, Jozef; MACDONALD, Gregor, James; OEHLRICH, Daniel; WO2010/94647; (2010); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 6086-21-1, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 6086-21-1, name is 1-Methyl-1,2,4-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.

Example 133.; Preparation of 8-(1-ethyl-propyl)-3-[3-methoxy-5-(2-methyl-2H-[1,2,4]triazol-3-yl)- thiophen-2-yl]-2,6-dimethyl-imidazo[1,2-b]pyridazine.; A. 5-Bromo-1-methyl-1H-[1,2,4]triazole.; EPO To a -78 °C solution of l-methyl-1H-[1,2,4]triazole (1.0 mL, 13.20 mmol) and TEtaF (100 mL) is added 1.6 M n-BuLi (8.70 mL, 13.86 mmol). After 45 minutes 1,2- dibromo-l,1,2,2-tetrafluoro-ethane (1.76 mL, 14.52 mmol) is added, the solution is warmed to ambient temperature and stirred for 2 hours. The solution is diluted with EtOAc (200 mL), washed with water (150 mL), brine (150 mL), dried over MgSO4, filtered and concentrated to furnish the title compound (1.37 g, 8.46 mmol, 64percent). 1H NMR (CDCl3) delta 3.82 (s, 3H), 7.78 (s, 1H). LC/MS (m/z): calcd. for C3H4BrN3 (M+H)+: 162.0; found: 161.9.

I am very proud of our efforts over the past few months and hope to 1-Methyl-1,2,4-triazole help many people in the next few years.

Reference:
Patent; ELI LILLY AND COMPANY; WO2006/102194; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 956317-36-5, New Advances in Chemical Research in 2021.Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, 956317-36-5, name is 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid, molecular formula is C10H9N3O2, 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 2-iodo-5-methylbenzoic acid (4.0 g, 15.3 mmol) in DMF (10 mL) was treated with 1 ,2,3-triazole (2.1 g, 30.5 mmol), CsCO3 (9.95 g, 30.5 mmol), CuI (0.145 g, 0.76 mmol) and trans-N,N’-dirnethylcyclohexane-l,2-diamine (0.43 g, 3.05 mmol). The mixture was heated at 120 0C for 10 min in a microwave reactor. The reaction was cooled to rt, diluted with water, and washed with EtOAc. The aqueous phase was acidified with IN HCl and extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and concentrated. The residue was purified by gradient elution on SiO2 (0 to 50% EtOAc in water with 0.1% TFA) to give the desired A-3. A portion of this acid (0.1 1 g, 0.53 mmol) was treated with thionyl chloride (0.59 g, 5.3 mmol) in dichloromethane (5.0 mL) at rt. After stirring at RT for 1 h, the mixture was concentrated, azeotroping with benzene to yield acid chloride A-3.

We very much hope you enjoy reading the articles and that you will join us to present your own research about 956317-36-5, Happy reading!

Reference:
Patent; MERCK & CO., INC.; WO2009/11775; (2009); 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. 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. HPLC of Formula: C3H3N3O2

[0861] lH-1,2,3-triazole-4-carboxylic acid (9.8 mg, 87f.tmol) and HATU (36.4 mg, 96 f.tmol) were combined in DMF(3.0 mL) and stirred at room temperature for 15 minutes.Compound 1 ( 40.3 mg, 87 fllllOI) and DIPEA ( 46 flL, 261f.tmol) were added and the resulting solution was stirred atroom temperature for 15 minutes, after which time LCMSindicated desired product formation. The solvent wasremoved in vacuo and the crude residue was purified byreverse phase chromatography to yield Compound a ( 5 .2 mg)as a TFA salt. MS m/z [M+Ht calc’d for C28H33CIFN50 4 ,558.22. found 558.

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-4-carboxylic acid ,and how the biochemistry of the body works.

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

Research speed reading 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 belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C2HBr2N3

In a 100 mL round-bottomed flask. 3.5-dibromo- 1 H- 1.2.4-triazole (5g, 22.0 mmol. Eq: 1.00), 1 – (chloromethyl)-4-methoxybenzene (3.45 g. 22.0 mmol. Eq: 1) and N-ethyl-N-isopropylpropan-2- amine (5.7 g. 44. 1 mmol. Eq: 2) were combined with acetonitrile (101 ml ) to give a light yellow solution. Potassium iodide (1.83 g, 11.0 mmol, Eq: 0.5) was added. The mixture was heated to reflux for 2 hours. The reaction mixture was cooled and diluted with EtOAc (100 mL), washed with H20 (50 mL) and brine (50 mL). The organic layer was dried over anhydrous MgS04, filtered and volatiles were removed under reduced pressure to yield an oil from which the compound was isolated by column chromatography (Hexanes/EtOAc = 70/30) to give 7.3 g of desired product (95%).

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 7411-23-6.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; CHEN, Zhi; CHIN, Elbert; ERICKSON, Shawn David; GABRIEL, Stephen Deems; MERTZ, Eric; WEIKERT, Robert James; WO2014/135483; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 956317-36-5, 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, 956317-36-5, name is 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid, molecular formula is C10H9N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

The 5 – methyl -2 – (2 H – 1, 2, 3 – triazole -2 – yl) benzoic acid (2.03 g, 10 mmol) is added to the 100 ml round bottom flask in the single port, for anhydrous dichloromethane (20 ml) dissolved, then slowly adding thionyl chloride (15 ml, 200 mmol) and pyridine (0.15 ml, 2 mmol). The reaction solution gradually heating to reflux, the reaction 3 hours after stopping the reaction, cooling, slowly evaporating the solvent under reduced pressure, the obtained product can be directly into the next step.

We very much hope you enjoy reading the articles and that you will join us to present your own research about 956317-36-5, Happy reading!

Reference:
Patent; Guangdong Dongyangguang Pharmaceutical Co., Ltd.; Jin Chuanfei; Zhang Yingjun; Xue Yaping; Lao Jinhua; Nie Biao; Xu Juan; (35 pag.)CN107759620; (2018); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 288-36-8, 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. 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.

1- (3-CHLORO-PROPOXY)-4-NITRO-BENZENE (7 g, 32.5 mmol) is dissolved in 2-methyl- 2-butanol (35 ml) followed by the addition of 1H-1, 2,3-triazole (3.43 g, 48.7 mmol), potassium iodide (0.54 g, 3.25 mmol) and sodium hydroxide (1.95 g, 48.7 mmol). The mixture is stirred for 20 h at 120 C, evaporated to dryness and suspended in toluene. Washing with water, drying over sodium sulfate and concentration in vacuo yields a crude product, which is washed with ether yielding L- [3- (4-NITRO-PHENOXY)-PROPYL]-LH- [L, 2,3] triazole as a colorless solid. Yield 6 g (75 %) MS: M = 249.3 (API+) H-NMR (400 MHz, CDC13) : 2.48 (m, 2H), 4.07 (t, J = 5.77 Hz, 2H), 4.64 (t, J = 6.7 Hz, 2H), 6.93 (d, J = 9.3 Hz, 2H), 7.56 (s, 1H), 7.72 (s, 1H), 8.20 (d, J = 9.2 Hz, 2H).

By the way, if you are interested in learning more fun chemistry with your kids, get your hands into one chemistry set now, and start enjoying the best part of chemistry: experiments about 1H-1,2,3-Triazole.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; WO2004/96796; (2004); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 22300-52-3, New discoveries in chemical research and development 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, 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.

Into a 5000-mL 3-necked round-bottom flask, was placed 4,5-dibromo-2H-1,2,3-triazole (301 g, 1.33 mol, 1.00 equiv), potassium carbonate (92.5 g, 669.27 mmol, 0.50 equiv) and NMP (3000 mL). This was followed by the addition of 1-chloropropan-2-one (148 g, 1.60 mol, 1.21 equiv) dropwise with stirring at 0° C. The resulting solution was stirred overnight at room temperature. The reaction was then quenched by the addition of 9000 mL of water. The solid was collected by filtration and dried in an oven. This resulted in 346 g (92percent) of 1-(dibromo-2H-1,2,3-triazol-2-yl)propan-2-one as a white solid.

We very much hope you enjoy reading the articles and that you will join us to present your own research about 22300-52-3, Happy reading!

Reference:
Patent; Gilead Apollo, LLC; Ghosh, Shomir; Greenwood, Jeremy Robert; Harriman, Geraldine C.; Leit De Moradei, Silvana Marcel; (290 pag.)US2017/166584; (2017); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics