Category: Triazoles

Reference of 288-36-8, 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, 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.

Intermediate 6: 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid To a solution of 2H-1,2,3-triazole (CAS number 288-36-8; 1.99 g, 28.93 mmol) in DMF (7.0 ml) at 0-10 C. was added cesium carbonate (4.7 g, 14.45 mmol), trans-1-N,2-N-dimethylcyclohexane-1,2-diamine (0.127 g, 1.45 mmol), copper(I) iodide (0.068 g, 0.36 mmol) and 2-iodo-5-methylbenzoic acid (CAS number 52548-14-8; 3.79 g, 14.46 mmol). The reaction was subjected to microwave irradiation at 125 C. for 15 minutes, and then poured into water (20 ml) and extracted with ethyl acetate. The combined organics were washed with brine, dried over sodium sulfate and concentrated in vacuo. The crude product was purified by column chromatography (0-3% methanol/DCM) to afford the title compound. 1H NMR (DMSO-d6) delta ppm 2.42 (s, 3H), 7.49-7.52 (m, 1H), 7.58-7.64 (m, 2H), 8.05 (s, 2H), 13.01 (s, 1H). (0444) MS ES+: 204

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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

New discoveries in chemical research and development 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.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

2-(2H-l,2,3-Triazol-2-vD-5-methylbenzoic acid (1-7)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’-dimethylcyclohexane-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 room temperature, 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 10% MeOH in water with 0.1% AcOH) to give the faster eluting 2-(2H-l,2,3-triazol-2-yl)-5-methylbenzoic acid 1-5. followed by the undesired regioisomer isomer, l-(2H-l,2,3-triazol-2-yl)-5-methylbenzoic acid. Data for K7: 1HNMR (500 MHz, DMSO-d6) d 12.98 (br s , IH), 8.04 (s, 2H), 7.72-7.45 (m, 3H), 2.41 (s, 3H) ppm.

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 ,and how the biochemistry of the body works.

Reference:
Patent; MERCK SHARP & DOHME CORP.; COX, Christopher, D.; FRALEY, Mark, E.; SCHREIER, John, D.; WO2010/48017; (2010); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development 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.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. Product Details of 288-36-8

Step 1: Preparation of 3-(1,2,3-triazol-1-yl)propanol ; 1,2,3-triazole (2g, 28.96mmol) was dissolved in 1,4-dioxane (40mL), and potassium carbonate (8g, 57.92mmol), potassium iodide (962mg, 5.79mmol) and 3-bromopropanol (3.3mL, 43.43mmol) were added thereto, followed by stirring at 100 for 3 hours. After the reaction was completed, the reactants were cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure. The resulting residue was purified by column chromatography to afford the title compound (2.5g, 68%). 1H NMR (CDCl3, 400MHz): delta 7.68 (s, 1H), 7.59 (s, 1H), 4.54 (t, J =6.8Hz, 2H), 3.62 (q, J =5.6Hz, 2H), 2.44 (t, J =5.2Hz, 1H), 2.15-2.10 (m, 2H

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 ,and how the biochemistry of the body works.

Reference:
Patent; DONG-A PHARM.CO., LTD.; KIM, Soon-Hoe; IM, Weon-Bin; CHOI, Sung-Hak; CHOI, Sun-Ho; SOHN, Ju-Hee; SUNG, Hyun-Jung; KIM, Mi-Yeon; CHO, Kang-Hun; SOHN, Tae-Kyoung; WO2011/132901; (2011); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 252742-72-6, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 252742-72-6, name is 3-(Chloromethyl)-1H-1,2,4-triazol-5(4H)-one, 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.

13.35 g (100 mmol) of 3-chloromethyl-1, 2, 4-triazolin-5-one, 64.628 (120 mmol) tetrabenzyl pyrophosphate and 50 ml of THF were added to the reaction flask, stirred well, cooled down to -5 ° C, 24.69 g (220 mmol) of potassium t-butoxide was added, after the addition, continue to stir the reaction, TLC monitor the reaction end point. 300 ml of saturated sodium bicarbonate solution and 300 ml of isopropyl ether were added the reaction solution, stirred for 15 min, and dispense, the organic phase was washed with saturated brine until neutral, dried over anhydrous sodium sulfate, filtered and the filtrate was concentrated to dryness, dried in vacuo to give 33.86 g white solid, yield 86percent.

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Reference:
Patent; Shandong New Age Pharmaceutical Co., Ltd.; Zhao Zhiquan; Bai Wenqin; Wang Youguo; Sun Xiuling; Dai Shaogang; (7 pag.)CN104650143; (2018); B;,
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. 16681-70-2

Compound 2 (18 mg, 47 mumol) was dissolved in DMF (0.3 mL) and 1H-1,2,3-triazole-4-carboxylic acid (5.3 mg, 47 mumol). HATU (18 mg, 47 mumol) was added, followed by DIPEA (25 muL, 141 mumol). The mixture was stirred for 30 minutes then concentrated under reduced pressure to yield Compound 3, which was used without further 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; Fleury, Melissa; Hughes, Adam D.; US2014/45906; (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: 1455-77-2, name is 3,5-Diamino-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. category: Triazoles

4′-nitroacetophenone was used in place of 2-acetylthiophene in Reference Example 001 and heated to reflux in xylene in the presence of N,N-dimethylformamide diethyl acetal as in Reference Example 001, and 3-dimethylamino-1-(4-nitrophenyl)propenone (quantitative) was obtained, which was subsequently reacted with 3,5-diamino-1,2,4-triazole in xylene in the presence of 10-camphor sulfonic acid and the title compound was obtained (yield 82percent).

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 1455-77-2.

Reference:
Patent; NIPPON KAYAKU KABUSHIKI KAISHA; EP1674454; (2006); 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. 16681-70-2, 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. name: 1H-[1,2,3]Triazole-4-carboxylic acid

[0688] Compound 3 (7 .0 mg, 16 f.tmol) was combined withDMF (0.5 mL), 1H-1,2,3-triazole-5-carboxylic acid (2.0 mg,18 f.tmol), HATU (6.8 mg, 18 f.tmol) and DIPEA (8.5 f.LL, 49f.tmol). The mixture was stirred for 30 minutes after whichtime LCMS showed the desired product formation, Compound4, which was used directly in the next step.

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

Related Products of 16681-70-2, 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, 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.

lH-l,2,3-triazole-4-carboxylic acid (2.3 mg, 20 muetaiotaomicron) was combined with HATU (7.7 mg, 20 muiotaetaomicron) in DMF (2 mL) and stirred at room temperature for 15 minutes. (1383) Compound 3 (7.7 mg, 18 muiotaetaomicron) and DIPEA (9.6 mu, 55 muiotaetaomicron) were then added. The solution was stirred at room temperature for 15 minutes, at which time LCMS showed reaction completion. The solvent was removed in vacuo and the crude residue was dissolved in EtOH (2 mL). A solution of IN LiOH (183 mu^, 183 muiotaetaomicron) in water was added, and the resulting solution was stirred at room temperature for 30 minutes, at which time LCMS showed reaction completion. The solvent was removed in vacuo and the crude residue was purified by reverse phase chromatography to yield Compound a (3 mg) as a TFA salt. MS m/z [M+H]+ calc’d for C23H25CIFN5O4, 490.16; found 488.

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Reference:
Patent; THERAVANCE BIOPHARMA R&D IP, LLC; FLEURY, Melissa; BEAUSOLIEL, Anne-Marie; HUGHES, Adam D.; LONG, Daniel D.; WILTON, Donna A.A.; WO2015/116786; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 4928-87-4, 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. 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.

General procedure: The tail group amines Ar-NH2 (Ar a-d) (19.5 mmol,1.1 equiv) were added to a stirring solution of 1,2,4-triazole-3-carboxylic acid 12 (2.00 g, 17.7 mmol, 1.0 equiv) in dry DMF(30 mL) at room temperature. After 5 min, TBTU (6.0 g, 18.6 mmol,1.0 equiv) and DIPEA (11.0 mL, 61.9 mmol, 3.5 equiv) were added insequence. The resulting solution was stirred at room temperaturefor 16 h. After completion of the reaction, as indicated by TLC, DMFwas removed by rotary evaporation at 30 torr and 70 C. The crudematerial was purified by methods described in each individualentry.

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Reference:
Article; Chakraborty, Amarraj; Dou, Yali; Gibbons, Garrett S.; Grigsby, Sierrah M.; Lee, Young-Tae; Liao, Chenzhong; Mathew, Bini; Moukha-Chafiq, Omar; Nikolovska-Coleska, Zaneta; Pathak, Vibha; Reynolds, Robert C.; Schuerer, Stephan C.; Snowden, Timothy S.; Umeano, Afoma C.; European Journal of Medicinal Chemistry; vol. 189; (2020);,
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. category: Triazoles

N. (2S,4R)-5-Biphenyl-4-yl-2-hydroxymethyl-2-methyl-4-[(3H-[1,2,3]triazole-4-carbonyl)-amino]-pentanoic acid pentyl ester (R4=H; R7=-(CH2)4CH3) (2S,4R)-4-Amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid (76 mg, 242 mumol) in MeCN (0.4 mL, 8 mmol) and 4 M HCl in 1,4-dioxane (242 muL, 969 mumol) was combined with pentan-1-ol (0.5 mL) at 60 C. The resulting mixture was stirred until solid precipitation was observed (~30 minutes). The solvent was evaporated under vacuum and the solids were azeotroped in toluene and dried under vacuum. 1,2,3-Triazole-4-carboxylic acid (0.0274 g, 0.242 mmol), DIPEA (169 muL, 969 mumol) and HATU (92 mg, 242 mumol) were combined in DMF (0.2 mL) and stirred for 5 minutes at room temperature. This was then combined with the dried solids, predissolved in DMF (0.2 mL) and DIPEA (0.5 eq.). The resulting mixture was stirred for 15 minutes and the reaction was quenched with AcOH. The product was purified by preparative HPLC and lyophilized to yield the title compound (30 mg; purity 95%). MS m/z [M+H]+ calc’d for C27H34N4O4, 479.26. found 479.4.

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, INC.; US2012/213806; (2012); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics