Day: September 7, 2021

Reference 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.

[0846] 1H-1,2,3-triazole-4-carboxylic acid (24.6 mg, 217f.tmol) was combined with HATU (83 mg, 217 flillOI) in DMF(0.3 mL) and stirred at room temperature for 15 minutes.Compound 2 (89 mg, 197 flillOI) and DIPEA (103 f.LL, 592f.tmol) were then added. The resulting solution was stirred atroom temperature for 15 minutes; LC/MS showed the mass ofthe desired product. The solvent was removed in vacuo andthe crude residue was dissolved in EtOH (3.0 mL). A solutionoflN LiOH in water (1.6 mL, 1.6 mmol) was added, and themixture was stirred overnight at 40 C. LC/MS showed themass of the desired product. The solvent was removed invacuo and the crude residue was purified by preparativeHPLC to yield the title compound (5 mg) as a TFA salt. MSrnlz [M+Hr calc’d for C25H29CIFN50 4 , 518.19. found 518.2.

I am very proud of our efforts over the past few months and hope to 1H-[1,2,3]Triazole-4-carboxylic acid help many people in the next few years.

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

Synthetic Route of 7343-33-1, 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. 7343-33-1, name is 5-Bromo-1H-1,2,4-triazole, molecular formula is C2H2BrN3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Example 1Preparation of 3-bromo-1-(4-isopropoxyphenyl)-1H-1,2,4-triazole 3-bromo-1H-1,2,4-triazole (1.75 g, 11.8 mmol), copper(I) iodide (0.370 g, 1.94 mmol), cesium carbonate (4.98 g, 15.3 mmol), and 1-iodo-4-isopropoxybenzene (2.04 g, 7.78 mmol) (Katsumatu, T., et al. Macromolecular Chemistry and Physics, 2009, 210 (22), 1891-1902) was placed in dimethylsulfoxide (50 mL) and degassed with nitrogen for 10 minutes. The solution was heated at 100° C. for 20 hours. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and filtered through Celite®. The resulting filter cake was rinsed with additional ethyl acetate (100 mL). The filtrate was washed with water (2*50 mL). The combined aqueous washes were neutralized with hydrochloric acid (2 N) as measured by pH paper. The aqueous solution was extracted with ethyl acetate (2*30 mL) and the organic extracts were combined, and then dried over anhydrous magnesium sulfate. The organic solution was concentrated onto Celite® and purified by silica gel chromatography using 0-100percent ethyl acetate/hexanes as eluent. The relevant fractions were concentrated to obtain the title compound as a yellow oil (0.540 g, 23percent): 1H NMR (400 MHz, CDCl3) delta 8.31 (s, 1H), 7.51 (d, J=9.1 Hz, 2H), 6.98 (d, J=9.0 Hz, 2H), 4.59 (p, J=6.1 Hz, 1H), 1.36 (d, J=6.1 Hz, 6H); ESIMS m/z 283 ([M+H]+).

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 5-Bromo-1H-1,2,4-triazole, hurry up and to see.

Reference:
Patent; DOW AGROSCIENCES LLC; Fischer, Lindsey G.; Crouse, Gary D.; Sparks, Thomas C.; Goldsmith, Miriam E.; (77 pag.)US2016/24026; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 7411-23-6, 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. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, molecular formula is C2HBr2N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Triazole 1, 85.0 g (0.38 mol), was dissolved in 500 mL of ethyl acetate, 2-3 drops of trifluoroacetic acid were added, the mixture was heated to 50 C, and 75.0 g (0.87 mol) of 3,4-dihydro-2H-pyran was added over a period of 2.5 h. The mixture was refluxed for 1 h with stirring and evaporated, and the residue was recrystallized from toluene. Yield 111.5 g (95 %), mp 116-117 C [15]. IR spectrum, nu,cm-1: 2951, 2901, 2869, 2361, 1448, 1418, 1364, 1310,1289, 1240, 1204, 1184, 1082, 1055, 1042, 1001, 982,939, 912, 880, 847, 820, 793, 700, 563. 1H NMR spectrum,delta, ppm: 1.43-1.60 m (2H), 1.61-1.79 m (1H),1.84-2.04 m (2H), 2.04-2.20 m (1H), 3.54-3.76 m(1H), 3.91 d.d (1H, 3J = 3.2, 2J = 8.7 Hz), 5.54 d.d (1H, 3J = 2.5, 9.2 Hz). 13C NMR spectrum, deltaC, ppm: 21.7(CH2), 24.7 (CH2), 28.7 (CH2), 67.3 (CH2O), 84.6(OCH), 132.0 (C3), 140.0 (C5). Mass spectrum, m/z(Irel, %): 86 (5.8), 85 (100), 67 (10.8), 57 (11.1), 55 (8.4), 43 (8.9), 41 (18.9), 39 (6.5), 29 (17.8), 27 (8.7).

I am very proud of our efforts over the past few months and hope to 3,5-Dibromo-1H-1,2,4-triazole help many people in the next few years.

Reference:
Article; Tolstyakov; Russian Journal of Organic Chemistry; vol. 54; 10; (2018); p. 1537 – 1547; Zh. Org. Khim.; vol. 54; 10; (2018); p. 1525 – 1534,10;,
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: 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. 1001401-62-2

(S) – /ert-butyl 3-methyl-4-r5-methyl-2-(2H-1.2.3-triazol-2-v?benzoyll-1.4-diazepane-l- carboxylate (D-5)To a solution of 400 mg (1.87 mmol) D-4, 371 mg (1.96 mmol) B-3, 343 mg(2.24 mmol) 1-hydroxybenzotriazole hydrate, and 780 muL (5.6 mmol) triethylamine in 5 mL of DMF was added 537 mg (2.8 mmol) EDC and the reaction was stirred overnight at 500C. The reaction was partitioned between EtOAc and saturated aqueous NaetaCtheta3. The layers were separated and the organic was washed with water, brine, dried over MgSO4 and concentrated by rotary evaporation. The residue was purified by column chromatography on silica gel (EtOAc/hexanes) to provide D-5 as a colorless gum. Data for D-5: LC/MS: rt = 2.09 min; m/z (M + H) = 386.1, found; 386.2 required.

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 1001401-62-2.

Reference:
Patent; MERCK & CO., INC.; WO2008/8518; (2008); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading 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. 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

For the preparation of [Zn(atz)2]·guest (MAF-66), 73 mg of 3-amino-1,2,4-triazole (atz) was dissolved in 50 mL of isopropylalcohol and 40 mg of Zn(OH)2 was dissolved in 50 mL of a 25% aqueous ammonia solution. The solutions were mixed together and stirred for several minutes. The final solution was left at room temperature for 3 d to evaporate slowly. The obtained colorless crystals were centrifuged and washed three times with water and isopropyl alcohol, and then air-dried. Elem. Anal. Calcd. (%) for C7H15.2N8O1.6Zn ([Zn(atz)2]·0.6H2O·1.0C3H8O): C, 27.80; H, 5.07;N, 37.05; Zn, 21.62. Found: C, 27.83; H, 4.86; N, 37.02; Zn, 22.77.

The catalyzed pathway has a lower Ea, but the net change in energy that results from the reaction is not affected by the presence of a catalyst. In my other articles, you can also check out more blogs about 7170-01-6

Reference:
Article; Kim, Han-Ung; Babu, Robin; Roshan, Roshith; Park, Dae-Won; Applied Catalysis A: General; vol. 538; (2017); p. 59 – 65;,
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

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

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

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

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