Category: Triazoles

Application of 15988-11-1, 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. 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione, molecular formula is C8H7N3O2, 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 dimedone (1, 1 mmol), 4-phenylurazole (2, 1 mmol), aromatic aldehyde (3a-h, 1mmol) and S-LCCO nano perovskite (0.01 g) was mixed in a high-pressure Teflon reactor, which was equipped with a magnetic stirrer and an optical fiber, which was implemented to control the reaction’s temperature. The reaction mixture was irradiated by 400 W microwave at 80 oC, for the specified reaction times. TLC with n-hexan:ethylacetate eluent was used to monitor the progress of the reactions. After reaction completion and cooling, the reaction mixtures were filtered and washed with ethanol to separate the catalyst. First, 10 mL water was added to the solution. Then, EtOH/H2O (4:1) was added to crystallize the water insoluble crude products. Then the crystals were filtered to achieve pure products (4a-h).

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 4-Phenyl-1,2,4-triazolidine-3,5-dione.

Reference:
Article; Zahedi, Najmeh; Javid, Ali; Mohammadi, Mohammad Kazem; Tavakkoli, Haman; Bulletin of the Chemical Society of Ethiopia; vol. 32; 2; (2018); p. 239 – 248;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 4928-87-4, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 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 (S)- a-methyl benzyl amine (0.27 mL, 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 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, filtered and concentrated under reduced pressure and chromatographed on silica gel using EtOAc and Hexanes (75:25) as eluents to get the desired amide 18 (211 mg, 49 % yield) as a white solid compound. -NMR (400 MHz, DMSO-de): <514.67 (br s, 1H), 8.97 (br s, 1H), 8.47 (br s, 1H), 7.42-7.40 (m, 2H), 7.32 (t, J= 7.4 Hz, 2H), 7.25-7.21 (m, 1H), 5.20-5.12 (m, 1H), 1.50 (d, 7= 6.8 Hz, 3H,) ppm. MH+ = 217.1 m/z. 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 1,2,4-Triazole-3-carboxylic acid, hurry up and to see. 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

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. 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. 27996-86-7

To a mixture of 4-(1H-1,2,4-triazol-1-yl)benzaldehyde (1 mmol) and malonic acid (3 mmol) in 10 mL dry pyridine, 2-3 drops of piperidine were added and the mixture was refluxed for 2 h. After cooling, the reaction mixture was poured into crushed ice, and the pH was adjusted to 1.0 by adding conc. HCl, and stirred for 30 min. The product obtained was filtered, washed with water, dried and crystallized from ethanol.

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-[1,2,4]Triazol-1-yl-benzaldehyde ,and how the biochemistry of the body works.

Reference:
Article; Nikam, Mukesh Dattatray; Mahajan, Pravin Sudhakar; Damale, Manoj Gangadhar; Sangshetti, Jaiprakash Navnath; Chate, Asha Vasantrao; Dabhade, Sanjay Kisan; Gill, Charansingh Harnamsingh; Letters in drug design and discovery; vol. 12; 8; (2015); p. 650 – 660;,
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. 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

Step C: (2-(2H-1,2,3-triazol-2-yl)phenyl)((1S,4R,6R)-6-((3-(trifluoromethyl)pyridin-2-yl)oxy)-2-azabicyclo[2.2.1]heptan-2-yl)methanone To the title compound of step B (25 mg) and intermediate A-1 (18 mg, 0.093 mmol) in DMF (0.8 mL) was added DIPEA (75 muL, 0.44 mmol) and HATU (36 mg, 0.093 mmol), and the reaction mixture was stirred at room temperature for 1 h. The reaction was quenched by the addition of H2O and the aqueous layer was extracted with EtOAc (3*). The combined organics were washed with H2O, 5% aqueous LiCl, brine, dried with Na2SO4, filtered, and concentrated. Purification via silica gel chromatography (0-60% EtOAc in hexanes) gave the title compound (29 mg). MS (ESI) mass calcd. C21H18F3N5O2, 429.1; m/z found 430.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d, Compound present as a mixture of rotamers, (0.76:0.24), major rotamer reported) delta 7.93-7.82 (m, 4H), 7.81 (s, 2H), 7.07 (dd, J=7.7, 1.5 Hz, 1H), 6.93-6.86 (m, 1H), 6.75 (td, J=7.6, 1.2 Hz, 1H), 5.04 (dt, J=10.2, 3.4 Hz, 1H), 4.15-4.04 (m, 1H), 3.66 (dt, J=10.9, 3.3 Hz, 1H), 3.38 (dd, J=10.9, 1.4 Hz, 1H), 2.66-2.60 (m, 1H), 2.27-2.15 (m, 1H), 1.48 (dt, J=13.3, 3.6 Hz, 1H), 1.44-1.37 (m, 1H), 1.36-1.28 (m, 1H).

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 2-(2H-1,2,3-Triazol-2-yl)benzoic acid help many people in the next few years.

Reference:
Patent; Janssen Pharmaceutica NV; GELIN, Christine F.; LEBOLD, Terry P.; SHIREMAN, Brock T.; US2014/275118; (2014); 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: 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

2-iodobenzoic acid (1 g, 4.03 mmol), 2H-l,2,3-triazole (0.334 g, 4.84 mmol), copper(I) iodide (0.768 g, 4.03 mmol), cesium carbonate (2.63 g, 8.06 mmol) were reacted in DMF at 120 C under microwave irradiation for 20 minutes. Then the reaction was monitored confirming the presence of the required product. Large amount of starting material resulted left. The reaction was further irradiated for 20 minutes at 120 C. Solvent was then removed under vacuum, poured into water (100 ml) and neutralised with 37% HC1. Aqueous phase was extracted with Et20 (3×100 ml), and the collected organic phases were concentrated to give 1 g of crude material. This was purified with Biotage SP1 (over a 340g C18 column) eluting with a gradient of ACN and water (modified with 0.5% HCOOH). Fractions were collected and concentrated under vacuum to give the title compound D43 as colourless solid (140 mg). UPLC (GEN QC Basic): rt = 0.29 minutes, peak observed: 188 (M-l) C9H7N302 requires: 189. 1H NMR (400 MHz, CHLOROFORM-d) delta ppm 6.47 (br. s., 1 H) 7.47 – 7.59 (m, 1 H) 7.66 (t, 1 H) 7.75 – 7.87 (m, 3 H) 7.91 (d, 1 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 288-36-8.

Reference:
Patent; GLAXO GROUP LIMITED; DI FABIO, Romano; WO2012/89606; (2012); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 41253-21-8, 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, 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.

2-(lH-l,2,4-Triazol-l-yl)benzonitrile. A suspension of 2-fluorobenzylnitrile (3.0 g, 25 mmol) and 1,2,4-triazole sodium salt (2.4 g, 27 mmol) were stirred in tetrahydrofuran (7 mL) and dimethylformamide (14 mL) at 95 0C for 18 h. After cooling and concentrating, the product was crystallized from hot CH2Cl2/hexane (1:1) to give the title compound as a white solid (4.25 g, 100% yield). 1H-NMR (300 MHz, CDCl3) 6 ppm: 8.74 (IH, s), 8.16 (IH, s), 7.82 (IH, dd, J= 4.9,1.3 Hz), 7.77-7.25 (2H, m), 7.57-7.51 (IH, m). LCMS [M+H]+ calcd for C9H7N4: 171.06; found: 171.12.

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

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; WO2007/64316; (2007); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 1001401-62-2, 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. 1001401-62-2, name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, molecular formula is C9H7N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Step (iii): N-[(1S,2S)-4,4-Difluoro-2-(2-methylpropane-2-sulfonamido)cyclopentyl]-2-(2H-1,2,3-triazol-2-yl)benzamide To a solution of N-[(1S,2S)-2-amino-4,4-difluorocyclopentyl]-2-methylpropane-2-sulfonamide (1.03 g, 4.02 mmol) in dry DCM (13.4 ml) was added 2-(2H-1,2,3-triazol-2-yl)benzoic acid (CAS number 1001401-62-2; 0.91 g, 4.82 mmol), EDC (2.31 g, 12.06 mmol), 3H-[1,2,3]triazolo[4,5-b]pyridin-3-ol (1.64 g, 12.06 mmol) and DIPEA (2.11 ml, 12.06 mmol). The reaction was stirred at room temperature overnight then partitioned between ethyl acetate and water. The organics were washed with water and brine, dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was purified by column chromatography (silica, 30-80% ethyl acetate/petrol) to afford the title compound. 1H NMR (400 MHz, DCM-d2) delta ppm 1.36-1.44 (m, 9H), 1.93-2.08 (m, 1H), 2.10-2.28 (m, 1H), 2.65-2.84 (m, 2H), 3.75-3.96 (m, 1H), 4.24-4.41 (m, 1H), 4.89-5.06 (m, 1H), 6.35-6.52 (m, 1H), 7.51-7.57 (m, 1H), 7.61-7.70 (m, 2H), 7.83-7.88 (m, 1H), 7.90 (s, 2H) MS ES+: 428

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 2-(2H-1,2,3-Triazol-2-yl)benzoic acid.

Reference:
Patent; Takeda Pharmaceutical Company Limited; Fieldhouse, Charlotte; Glen, Angela; Maine, Stephanie; Fujimoto, Tatsuhiko; Robinson, John Stephen; US2015/232460; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 1157938-97-0, 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, 1157938-97-0, name is 1-(2,5-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, molecular formula is C10H7F2N3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

The thus obtained LDA-solution (3.66 mL, 0.98 mmol, 1.1 eq) was transferred to a Schlenk vessel and ethylpropionate (100 mg, 0.98 mmol, 1.1 eq.) was added in a drop wise fashion at -78 C. under a nitrogen atmosphere. The resulting mixture was stirred at -78 C. for 30 minutes and then 1-(2,5-difluorophenyl)-2-(lII-1,2,4-triazol-1-yl)ethanone (200 mg, 0.90 mmol, 1.0 eq.) in THF (3.66 mL) was added in a drop wise fashion over 15 minutes. The reaction mixture was stirred for 2 hours at -78 C. and then quenched with acetic acid and warmed to room temperature. The mixture was diluted with aqueous saturated NH4Cl and ethylacetate. The aqueous layer was extracted with ethylacetate (2×) and the combined organic layers were washed with brine, dried (Na2SO4), filtered and concentrated in vacuo to give a yellow oil containing the racemic ester I with a diastereomeric excess of 29% in favour of the desired RR/SS diastereomer. Further purification by column chromatography (n-heptane/EtOAc/MeOH 60/40/5 v/v/v) provided the RR/SS diastereomer (light yellow solid) as well as the RS/SR diastereomer (off-white solid) in a combined overall yield of 179 mg (0.55 mmol, 61%).

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 1-(2,5-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, hurry up and to see.

Reference:
Patent; Basilea Pharmaceutica AG; Van Summeren, Ruben; Vaessen, Harrie; Mink, Daniel; Waser, Mario; (11 pag.)US2019/77771; (2019); 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. 16681-65-5, 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. HPLC of Formula: C3H5N3

To a flask containing 1-methyl-1H-1,2,3-triazole (150 mg, 1.81 mmol) was added THF (15 mL) and the colorless homogeneous solution was cooled to -43 C. using a CH3CN-CO2 bath. n-BuLi (2.5M in hexanes, 0.7 mL, 1.75 mmol) was added drop wise via syringe which afforded an opaque mixture. The suspension was stirred at -40 C. for 30 min, then a THF solution of tert-butyl-3-(4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinoline-6-carbonyl)azetidine-1-carboxylate (430 mg, 0.8 mmol, in 2 mL THF, Intermediate 66: step b) was introduced at -40 C. The reaction mixture was allowed to warm gradually to room temperature over 45 min and then quenched with NH4Cl solution. The aqueous portion was extracted with EtOAc (3*30 mL) and the combined organics were washed with brine, dried over MgSO4, filtered and concentrated to provide an amber gum. Chromatography on silica gel (10% acetone-hexane increasing to 30% acetone) afforded the title compound (170 mg) as a white amorphous solid. 1H NMR (500 MHz, CDCl3) delta 8.24 (d, J=2.1 Hz, 1H), 7.78 (d, J=8.8 Hz, 1H), 7.56-7.47 (m, 3H), 7.40 (d, J=8.1 Hz, 2H), 7.35 (dd, J=8.7, 2.1 Hz, 1H), 4.35 (s, 2H), 4.20 (t, J=8.8 Hz, 1H), 4.07 (s, 3H), 4.00 (dd, J=9.3, 5.6 Hz, 1H), 3.92 (dd, J=8.9, 5.7 Hz, 1H), 3.67 (s, 3H), 3.62 (t, J=8.8 Hz, 1H), 3.52-3.38 (m, 1H), 1.38 (s, 9H). MS (ESI): mass calcd. for C30H31ClF3N5O4: 618.06, m/z found 619.9 [M+H]+.

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 1-Methyl-1H-1,2,3-triazole help many people in the next few years.

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.; Pierce, Joan; Goldberg, Steven; Fourie, Anne; Xue, Xiaohua; US2014/107094; (2014); 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. 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

A solution of 2-(2H-1,2,3-triazol-2-yl)benzoic acid (227 mg, 1.2 mmol) in 2 mL ofSOC12 was heated at 50 C for 30 mins. After cooling to RT, the mixture was concentrated invacuo. A solution of the product from step 4 (80.0 mg, 0.41 mmol) and TEA (121 mg, 1.2 mmol) in DCM (3 mL) at 0 C was stirred for 10 mm and a solution of the above residue inDCM (1 mL) was added dropwise at 0 C. The mixture was stirred for 40 mins at 0 C. The mixture was concentrated in vacuo. The residue was purified by silica gel columnchromatography (20% EtOAc in petroleum ether) to give the title compound as a solid. LRMS m/z (M+H) 331.2 found, 331.2 required.

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 1001401-62-2, and we look forward to future research findings.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; LIVERTON, Nigel; LUO, Yunfu; (58 pag.)WO2016/89722; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics