Triazoles

Related Products of 288-88-0, 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. 288-88-0, name is 1H-1,2,4-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 1. 250 mmol of dimethyl carbonate was added to a mixture of 50 mmol of 1,2,4-triazole and 12.5 mmol of sodium carbonate, and the resulting suspension was stirred at 120 C under a nitrogen atmosphere and refluxed for 16 h. Volatilization in the residual liquid in the vacuumWashing the residue with chloroform, filtering solid impurities, and spinning the filtrate.4.74 g of 4-methyl-1,2,4-triazole was obtained as a colorless liquid.

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Reference:
Patent; Nanjing Tech University; Guan Guofeng; Ding Jing; He Yuting; Li Xue; Yuan Dashui; Wan Hui; Wang Lei; (9 pag.)CN108250227; (2018); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 6523-49-5, 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. 6523-49-5, name is 4-(1,2,4-Triazol-1-yl)aniline, molecular formula is C8H8N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Example 3; N*4*,N*4’*-Bis-(4-[l,2,4]triazol-l-yI-phenyl)-[6,6′]biquinazoIinyl-4,4′-diamine; N’-[3,3′-Dicyano-4′-(dimethylammo-methyleneamino)-biphenyl-4-yl]-N3N-dimethyl- formamidine (lOOmg, 0.29mmol) and 4-(lH-l,2,4-triazol-l-yl)aniline (93mg, 0.58mmol) were combined in acetic acid (50OuL) and heated to 125 for 90minutes. The solid was isolated by filtration and washed with water, then slurried with aqueous potassium carbonate. The solid was filtered and washed with water before drying in vacuo to give the title compound as a cream solid( 90mg, 54%)1H NMR (DMSO) delta 11.95 (IH, s), 10.2 (IH, s), 9.28 ( IH, s), 9.03 ( IH, s) 8.69 (IH, S), 8.47 (IH, d) 8.25 (IH, s), 7.9-8.1 ( 4H, m) LC-MS rt 2.43 m/z 573 ES- 575 ES+ EPO o

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 4-(1,2,4-Triazol-1-yl)aniline.

Reference:
Patent; ARROW THERAPEUTICS LIMITED; WO2006/79833; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7170-01-6, 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. 7170-01-6, name is 3-Methyl-1H-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.

A solution of 2,4-difluorobenzonitrile (7.07 g, 50.8 mmol) and 3-methyl-1H-1,2,4-triazole (4.22 g, 50.8 mmol) in N,N-dimethylformamide (45 ml) was treated with powdered anhydrous potassium carbonate (10 g) and the resulting mixture was stirred at 22 C. for 18 h. The solid was then filtered and the filtrate was concentrated in vacuo. The residue was diluted with ethyl acetate, washed with water and brine, dried over anhydrous magnesium sulfate and concentrated. The mixture containing the 2 and 4-triazolyl-benzonitriles was purified by a combination of chromatography on silica gel (elution gradient of ethyl acetate in hexane) and on reversed phase silica gel to give 1.86 g (18% yield) of Intermediate 5 and 0.526 g (5% yield) of Intermediate 6. Intermediate 5 4-Fluoro-2-(3-methyl-1H-1,2,4-triazol-1-yl)benzonitrile: White crystals (ethyl acetate/hexanes); mp 117-118 C. 1H NMR (400 MHz, CDCl3) delta: 8.82 (1H, s), 7.84 (1H, dd, J=5.6, 8.6 Hz), 7.62 (1H, dd, J=2.5, 9.1 Hz), 7.24 (1H, m), 2.54 (3H, s). Anal. Calcd for C10H7FN4: C, 59.40; H, 3.49; N, 27.71. found: C, 59.25; H, 3.32; N, 27.81. Intermediate 6 4-fluoro-2-(5-methyl-1H-1,2,4-triazol-1-yl)benzonitrile: White crystals (ethyl acetate-hexane); mp 120-121 C. 1H NMR (400 MHz, CDCl3) delta: 8.06 (1H, s), 7.91 (1H, dd, J=5.5, 8.6 Hz), 7.39 (1H, m), 7.30 (1H, dd, J=2.5, 8.1 Hz), 2.56 (3H, s). Anal. Calcd for C10H7FN4: C, 59.4; H, 3.49; N, 27.71. found: C, 59.35; H, 3.70; N, 27.77.

Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. Keep reading other articles of 7170-01-6.

Reference:
Patent; Bristol-Myers Squibb Company; US2007/112190; (2007); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 59660-30-9, 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, 59660-30-9, name is (4-Methyl-4H-[1,2,4]triazol-3-yl)methanol, molecular formula is C4H7N3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

A mixture of (4-methyl-l,2,4-triazol-3-yl)methanol (45.83 mg, 0.41 mmol), 5-[4- (trifluoromethoxy)phenyl]-3H-oxazolo[4,5-b]pyridin-2-one (60 mg, 0.20 mmol), PPI13 (106.26 mg, 0.41 mmol) and DIAD (81.92 mg, 0.41 mmol) in THF (3 mL) was stirred at 20 C under N2 for 16 hours. The reaction was diluted with sat.NH4Cl (10 mL), and the mixture was extracted with EtOAc (10 mL x 2). Then the combined organic phase was washed with brine (10 mL), dried over Na2SC>4, filtered and concentrated to give the crude product. The crude product was purified by Prep-HP LC (Waters Xbridge (150 mm x 25 mm, 5 muiotaeta) A = H20 (10 mM NH4HCO3) and B = CH3CN; 32 – 47% B over 8 minutes) to give the impure product. The impure product was triturated from z-Pr20 (10 mL) and purified by Prep-HP LC (Waters Xbridge (150 mm x 25 mm, 5 muiotatauiota) A = H20 (10 mM NH4HCO3) and B = CH3CN; 33 – 63% B over 6 minutes) to give the product (16.59 mg, 41.1 muiotatauiotaomicron, 20% yield) as a solid. 1H NMR (DMSO-c 400MHz) deltaH = 8.48 (s, 1H), 8.14 (d, 2H), 7.88 (d, 1H), 7.81 (d, 1H), 7.48 (d, 2H), 5.30 (s, 2H), 3.79 (s, 3H). LCMS Rt = 1.10 min in 2.0 min chromatography, MS ESI calcd. for CnHnFjNsOs [M+H]+ 392.1, found 391.9.

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Reference:
Patent; PRAXIS PRECISION MEDICINES , INC.; REDDY, Kiran; MARTINEZ BOTELLA, Gabriel; GRIFFIN, Andrew, Mark; MARRON, Brian, Edward; (244 pag.)WO2018/148745; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 184177-83-1, 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. 184177-83-1, name is 1-((2S,3S)-2-(Benzyloxy)pentan-3-yl)-4-(4-(4-(4-hydroxyphenyl)piperazin-1-yl)phenyl)-1H-1,2,4-triazol-5(4H)-one, molecular formula is C30H35N5O3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

EXAMPLE 2PREPARATION OF BENZYL POSACONAZOLE OF FORMULA (Ila); In a clean, dry round bottomed flask 23 ml of dimethylsulfoxide and 4.74 gm of compound of formula (III) were charged at room temperature and stirred for about 15 minutes. Previously prepared NaOH solution (0.53 gm of NaOH dissolved in 3.74 ml of water) was added into the flask at about room temperature and stirred for about 30 minutes. 5 gm of compound of formula (IVa) was added to the reaction solution and stirred at about 35C to about 40C for about 12 hours. After completion of the reaction, the reaction solution was cooled to about 0C and 50 ml of water was added dropwise and stirred for about 30 minutes. The formed precipitate was filtered and washed with 80 ml of water. The solid was dried in air oven at about 45C to about 50C to yield 6.6 gm of the title compound. Purity by HPLC: 92%

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Reference:
Patent; GLENMARK GENERICS LIMITED; GHARPURE, Milind; KRISHNA, Vivek; SANIKOMMU, Srinivas Reddy; CHAUDHARI, Ganesh; VERDIA, Jitendra; KHAN, Mubeen Ahmed; WO2011/158248; (2011); 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. 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. 7411-23-6

a 3,5-Dibromo-1-(4-methoxyphenylmethyl)-1H-1,2,4-triazole 4-Methoxyphenylmethyl chloride (4.47 ml) was added to a stirred solution of 3,5-dibromo-1,2,4-triazole (7.125 g) and triethylamine (4.81 ml) in anhydrous dichloromethane (70 ml) at room temperature. After 4 days, the mixture was evaporated under reduced pressure and the residue purified by column chromatography over silica, eluding with ethyl acetate/isohexane (1:4) to give the sub-title compound (7.34 g) as a solid. MS (+ve APCI) 346/348/350 ((M+H)+).

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Reference:
Patent; Bantick, John; Ingall, Anthony; Perry, Matthew; Reynolds, Rachel; US2004/14634; (2004); 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. Recommanded Product: 7170-01-6

Step 212.1: To a solution of 3-methyl-1H-1,2,4-triazole (1 g) in MeCN (40 mL) was added Cs2CO3 (3.72 g) followed by benzyl bromoacetate (1.89 mL). The reaction mixture was stirred at RT for 1 h and evaporated to dryness. The residue was taken up in EA and washed with water, sat. NH4Cl and brine. The aq. layers were extracted with EA, the combined org. layers were dried (MgSO4), filtered off and evaporated in vacuo. The residue was purified by CC (Biotage, SNAP 100 g cartridge, solvent A: DCM; solvent B: DCM/MeOH 8/2; gradient in % B: 15 for 12CV, 15 to 25 over 2CV, 25 for 3CV) to afford 2.23 g of oil. The oil was purified by preparative chiral HPLC (II) to afford the two regioisomers, both as mixture of benzyl and ethyl ester that formed during the evaporation of the fractions after HPLC purification. The second eluting compound also contains the methyl ester analog due to the addition of MeOH to the fractions before evaporation. [0921] First eluting compound: (5-Methyl-[1,2,4]triazol-1-yl)-acetic acid benzyl ester (1.07 g, brown oil, contains 16% of the ethyl ester analog). LC-MS (B): tR=0.68 min; [M+H]+: 232.16. 1H-NMR (CDCl3): 7.83 (s, 1H); 7.40-7.33 (m, 5H); 5.23 (s, 2H); 4.93 (s, 2H); 2.43 (s, 3H). Roesy signal seen between CH2 at 4.93 ppm and CH3 at 2.43 ppm. [0922] Second eluting compound: (3-Methyl-[1,2,4]triazol-1-yl)-acetic acid benzyl ester (1.15 g, yellow oil, contains 30% of the ethyl ester and 20% of the methyl ester analogs). LC-MS (B): tR=0.67 min; [M+H]+: 232.16. 1H-NMR (CDCl3): 8.05 (s, 1H); 7.40-7.30 (m, 5H); 5.23 (s, 0.95H, CH2 of benzyl ester); 4.93-4.88 (3s, 2H); 4.27 (q, 0.58H, CH2 of ethyl ester); 3.81 (s, 0.65H, CH3 of methyl ester); 2.42 (s, 3H). Roesy signal seen between CH at 8.05 ppm and CH2 at 4.93-4.88 ppm.

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Reference:
Patent; Caroff, Eva; Keller, Marcel; Kimmerlin, Thierry; Meyer, Emmanuel; US2014/371204; (2014); 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. 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]+.

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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