Day: June 25, 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. 23579-79-5, name is 3,5-Dibromo-1-methyl-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Safety of 3,5-Dibromo-1-methyl-1H-1,2,4-triazole

Synthesized according to the method described in WO2011 / 006903A13,5-Dibromo-1-methyl-1 H-1,2,4-triazole (0.5 g)Was dissolved in dioxane (20 ml)And the mixture was stirred at room temperature. To this was added water (3 ml),2-fluoro-4- (trifluoromethyl) phenylboronic acid (0.43 g),Tetrakis (triphenylphosphine) palladium (0) (0.12 g),Cesium carbonate (1.0 g) was added,The inside of the reaction vessel was replaced with nitrogen,The mixture was stirred under heating reflux overnight.The reaction solution was poured into water,And extracted with ethyl acetate.The obtained organic layer was washed with saturated brine,It was dried over anhydrous magnesium sulfate,It was filtered.The filtrate was concentrated under reduced pressure,The obtained residue was purified by silica gel column chromatography to obtain 0.31 g (yield 46%) of the objective compound.

If you are hungry for even more, make sure to check my other article about 23579-79-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Nippon Soda Co., Ltd.; Aoyama, Hikaru; Banzai, Keita; Iwasa, Takao; Kobayashi, Asami; (43 pag.)JP2017/110003; (2017); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 16681-70-2, 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. 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.

HATU (79 mg, 207 .imol) was added to a stirred solution of 1H-1,2,3-triazole-4- carboxylic acid (23 mg, 207 .imol) in DMF (1.3 mL) and stirred for 10 minutes. DIPEA (49 mg, 376 .imol) was added and after 5 minutes, Compound 2 (66 mg, 188 .imol) pre5 dissolved in DMF and DIPEA (1.3 mL, 2 eq.) was added. After 90 minutes LCMSindicated the major product. The mixture was then concentrated in vacuo. The product was determined to be a mixture of the isomers with an additional impurity. The product was purified by preparative HPLC to yield the title isomer a (2.75 mm retention time; 1.1 mg) and b (2.68 mm retention time; 3.1 mg) as TFA salts.

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.; WO2015/116760; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 41253-21-8, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, 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.

Compound 271; Synthesis of N-(5-(lH-l.Z4-triazol-l-ylV2-f3A5-trimethoxybenzovn phenvPacetamide; As shown in Reaction 1, first, magnesium was added to l-bromo-3,4,5- trimethoxybenzene as a starting material. Then, Compound (VII) derivative was added thereto to obtain a compound [N-(5-fluoro-2-(3,4,5- trimethoxybenzoyl)phenyl)acetamide. Thus obtained compound [N-(5-fluoro-2- (3,4,5-trimethoxybenzoyl)phenyl)acetamide] (36.2mg, 0.1 mmol) was dissolved in DMF (2 ml), and 1,2,4-triazole-Na (28.5 mg) was added thereto at room temperature. The mixture was heated with stirring for 2 hours. After completion of the reaction, the reaction mixture was cooled to room temperature and diluted with an EtOAc solution. The organic layer was washed with water, and brine. The extracted organic layer was dried over anhydrous MgSO4, and the solid substance was filtered off. The remaining solvent was removed by vacuum evaporation. The resulting residue was purified by column chromatography (SiO2, n-Hex/EA=2/l?l/l) to obtain Compound 271 (25.6 mg, 65%).1H NMR (CDCl3) delta 10.812 (s, IH), 9.077 (s, IH), 8.788 (s, IH), 8.144 (s, IH), 7.767 (d, J = 8.36 Hz, IH), 7.564 (d, J = 8.52 Hz, IH), 6.956 (s, 2H), 3.954 (s, 3H), 3.879 (s, 6H), 2.264 (s, 3H). MS (ESI) m/z 397 (M+ + H).

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 Sodium 1,2,4-triazol-1-ide.

Reference:
Patent; CHONG KUN DANG PHARMACEUTICAL CORP.; WO2008/38955; (2008); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 288-36-8, 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. 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.

To a 100 ml round bottom flask containing 2-chloro-6-methylnicotinic acid (3 g, 17.4 mmol), copper iodide (0.16 g, 0.5 mol%), and cesium carbonate (1 1 .4 g, 35 mmol) was added a mixture of dioxane (20 ml_) and H2O (0.1 ml, 5.25 mmol). Next triazole (2.03 ml_, 35 mmol) and finally (R,R)-(-)-N,N’-dimethyl-1 ,2-cyclohexanediamine ligand (0.56 ml_, 3.5 mmol) were added. The resulting clumpy yellow slurry was stirred until evenly dispersed. Upon heating to 100 oC the reaction mixture changed from a yellow slurry to pale green. As heating progressed the slurry became less thick and was stirred more easily. The light green slurry was stirred for 4 hr at 100 oC and left to stir at room temp overnight. At this point the reaction mixture appeared as a cobalt blue slurry which was then diluted with 20 ml_ ether and 20 ml_ H2O. The resulting solution was thoroughly stirred and transferred to a seperatory funnel then the RBF was subsequently rinsed with 20 ml_ ether and H2O each. The aqueous layer was separated from the organic layer and acidified to pH 1 with 6 ml_ cone. HCI. The now brown/ lime green aqueous layer was extracted twice with EtOAc. The bright yellow organic layers were combined and dried with Na2SO4 and then cone, into a yellow powder under reduced pressure. To the yellow powder was added EtOAc to form a yellow slurry. The solids were filtered off and washed with EtOAc to give a very pale yellow powder, which was found by 1H NMR to be the Intermediate 71 (25% yield). The filtrate was cone, into a yellow solid and purified (FCC, 0-5% MeOH in DCM w/ 0.5% AcOH) to give the title product in a 20% yield. MS (ESI): mass calculated for C9H8N4O2, 204.18; m/z found 205.3 [M+H]+ 1 H NMR (400 MHz, CD3OD): 8.21 – 8.18 (m, 1 H), 7.98 (s, 2H), 7.51 (d, J = 7.9 Hz, 1 H), 2.64 (s, 3H).

We very much hope you enjoy reading the articles and that you will join us to present your own research about 288-36-8, Happy reading!

Reference:
Patent; JANSSEN PHARMACEUTICA NV; CHAI, Wenying; LETAVIC, Michael, A.; LY, Kiev, S.; PIPPEL, Daniel, J.; RUDOLPH, Dale, A.; SAPPEY, Kathleen, C.; SAVALL, Brad, M.; SHAH, Chandravadan, R.; SHIREMAN, Brock, T.; SOYODE-JOHNSON, Akinola; STOCKING, Emily, M.; SWANSON, Devin, M.; WO2011/50198; (2011); 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. 27996-86-7, name is 4-[1,2,4]Triazol-1-yl-benzaldehyde belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 4-[1,2,4]Triazol-1-yl-benzaldehyde

A mixture of alpha ionone (1.152 g, 1.23 ml, 6 mmol), 4-(1H-1,2,4-triazol-1-yl) benzaldehydes (0.865 g, 5 mmol), cetyltrimethyl ammonium bromide (0.070 g, 0.5 mmol), sodium hydroxide (0.600 g, 15 mmol) and water (25 ml) was stirred at room temperature for 24 h. Reaction progress was monitored by TLC and compound was extracted with ethyl acetate (2 × 50 ml). The combined organic extract was washed with water (2 × 50 ml), brine solution (50 ml), dried (Na2SO4) and the solvent was removed in vacuum. The crude product was purified by column chromatography (SiO2, 60-120 mesh). Elution with 10 % ethyl acetate in hexane furnished a pale yellow coloured solid (0.400g, 23%). Mp: 108-110OC; IR (KBr, cm-1): 2915, 1651 (C=O), 1598 (C=N); 1H NMR (CDCl3, 300 MHz): delta 0.88 (s, 3H), 0.95 (s, 3H), 1.22-1.29 (m, 1H), 1.43-1.52 (m, 1H), 1.60 (s, 3H), 2.07 (brs, 2H), 2.36 (d, J = 9 Hz, 1H), 5.53 (brs, 1H), 6.39 (d, J = 16 Hz, 1H), 6.85 (dd, J = 16, 9 Hz, 1H), 7.01 (d, J = 16 Hz, 1H), 7.63-7.74 (m, 5H), 8.11 (s, 1H), 8.60 (s, 1H); 13C NMR (CDCl3, 75 MHz): delta 22.92, 23.10, 26.90, 27.95, 31.25, 32.75, 54.67, 2×120.13, 122.83, 125.72, 2×129.72, 130.54, 131.93, 134.81, 137.99, 140.89, 141.16, 149.44, 152.81, 188.53; ESI-MS m/z: 348 [M+1]+; Analysis calculated for C22H25N3O: C, 76.05; H, 7.25; N, 12.09; Found: C, 76.05; H, 7.29; N, 12.03.

If you are hungry for even more, make sure to check my other article about 27996-86-7, the application of this compound in the production field has become more and more popular.

Reference:
Article; Suryawanshi; Tiwari, Avinash; Kumar, Santosh; Shivahare, Rahul; Mittal, Monika; Kant, Padam; Gupta, Suman; Bioorganic and Medicinal Chemistry Letters; vol. 23; 10; (2013); p. 2925 – 2928;,
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. 60166-43-0, name is 1,4-Dimethyl-1H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. name: 1,4-Dimethyl-1H-1,2,3-triazole

The compound 1G (1.02 g, 1.9 mmol), 1,4-dimethyl-1H-1,2,3-triazole (380 mg, 3.8 mmol) obtained in the previous step,Tetramethylammonium acetate (251mg, 1.9mmol) and PdCl2 (PPh 3) 2 (bistriphenylphosphonium palladium dichloride) (100mg, 0.14mmol) were added to DMF (20mL) and the air was replaced with nitrogen, then protected under nitrogen Then, stir at 100 degrees overnight.After TLC showed that the reaction was over, the reaction was cooled to room temperature, poured into 200 ml of water, and extracted with ethyl acetate (2 × 100 mL).The combined organic phases were washed with a saturated sodium chloride solution (3 × 100 mL), the organic phases were dried over anhydrous sodium sulfate,The desiccant was removed by filtration, and the solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography (petroleum ether / ethyl acetate = 3: 1 to 1: 1 (volume ratio V: V)),The target product Compound 1H (430 mg, yellow solid) was obtained in a yield of 42%.

If you are hungry for even more, make sure to check my other article about 60166-43-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Wuhan Yukeyuan Pharmaceutical Biological Technology Co., Ltd.; Fang Huaxiang; Yu Bin; Li Fangfang; Zhang Xiaolin; Che Peng; Xu Yong; (18 pag.)CN110357878; (2019); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 4928-87-4, 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. 4928-87-4, name is 1,2,4-Triazole-3-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.

To a reaction of 1/7-1, 2, 4-triazole-3 -carboxylic acid (226 mg, 2.0 mmol) and 3,4- dimethoxyaniline (322 mg, 2.1 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 ice cold water and extracted with DCM (50 mL x 2). The DCM phase was washed with cold water (100 mL x 2). The DCM phase was dried over anhydrous Na2S04, filtered and concentrated under reduced pressure and then chromatographed on silica gel using EtOAc as eluent to get the desired amide 1 (60 mg, 12% yield) as a light brown solid. -NMK (400 MHz, DMSO- de): <514.79 (br s, 1H), 10.34 (br s, 1H), 8.58 (br s, 1H), 7.55-7.44 (m, 2H), 6.94-6.93 (m, 1H), 3.76-3.74 (m, 6H) ppm. MH+ = 263.2 m/z. 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 1,2,4-Triazole-3-carboxylic acid. 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

Synthetic Route of 288-36-8, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 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.

Step A: A solution of lH-l,2,3-triazole (1.0 g, 14.5 mmol), methyl iodide (3.1 g, 21.7 mmol) and K2CO3 (4.0 g, 28.9 mmol) in THF (15 mL) was stirred at room temperature for 3 hours. EtOAc (20 mL) and H20 (10 mL) were added, separated. The solvent was concentrated under vacuum. The crude residue was purified by silica gel chromatography eluting with 10% MeOH/DCM to afford l-methyl-lH-l,2,3-triazole (860 mg, 10.4 mmol, 71% yield) as yellow oil.

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; GENENTECH, INC.; F. HOFFMANN-LA ROCHE AG; YUK, Inn H.; PURKEY, Hans; O’BRIEN, Thomas; WO2015/142903; (2015); A2;,
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. Product Details of 4922-98-9

STEP E; A reaction mixture of compound 35-4 (28.3 mg, 0.1 mmol) and 3-phenyl-1H- 1 ,2,4-triazol-5-amine (16 mg, 0.1 mmol) in ethanol was stirred at 80 0C for overnight. The product was purified using reverse phase HPLC.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 5-Phenyl-1H-1,2,4-triazol-3-amine help many people in the next few years.

Reference:
Patent; SCHERING CORPORATION; SHIPPS, JR., Gerald, W.; CHENG, Cliff, C.; HUANG, Xiaohua; ACHAB, Abdelghani, Abe; ORTH, Peter; VOIGT, Johannes, H.; SOUCY, Kyle, Ann; WO2010/56631; (2010); 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. 61-82-5, name is 1H-1,2,4-Triazol-5-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C2H4N4

General procedure: A mixture of aldehyde (1.0 mmol), dimedone (1.0 mmol),1H-1,2,4-triazol-3-amine (1.0 mmol) and nano-AlPO4(SO3H) (0.1 g) was stirred in the acetonitrile (4.0 mL)at 50 C for an appropriate time. After the completion of thereaction as indicated by TLC, dichloromethane was addedto the solidified mixture and the insoluble catalyst was separatedby centrifugation. Evaporation of the solvent from thefiltrate and recrystallization of the solid residue from hot ethanolafforded the pure products in good to excellent yields

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 1H-1,2,4-Triazol-5-amine help many people in the next few years.

Reference:
Article; Sharghi, Hashem; Aboonajmi, Jasem; Aberi, Mahdi; Shiri, Pezhman; Journal of the Iranian Chemical Society; vol. 15; 5; (2018); p. 1107 – 1118;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics