Tag: M.W:100-200

Reference of 3641-13-2, 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, 3641-13-2, name is 5-Amino-4H-1,2,4-triazole-3-carboxylic acid, molecular formula is C3H4N4O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

The organometallic complex [Mo(CO)3Br2(NCMe)2] was preparedaccording to literature methods [1,4,5]. A solution of Mo-II(2.3 g, 5.45 mmol) in ethanol (60 mL) was treated with 3-amino-1,2,4-triazole-5-carboxylic acid (ATZAc) (0.70 g, 5.45 mmol). Theresulting solutionwas stirred for 8 h under reflux and evaporated todryness. The solid obtained was washed with hexane and dried under vacuum (2.22 g of yield) [6]. Elemental Analysis forMoC7O3Br2N2H6 (421.94 g/mol): calculated C 19.90%, N 6.63%, H1.42%, Mo 22.73%; found C 19.76%, N 6.59%, H 1.31%, Mo 22.65%. IR(KBr pellet, cm-1): nu (?CO) =1879, 1974, 204, nu (C?O) =1679. EDS(Full scale 37854 ct cursor: -0.348 (octs), keV): C, N, O, Br, Mo.

We very much hope you enjoy reading the articles and that you will join us to present your own research about 3641-13-2, Happy reading!

Reference:
Article; Vieira, Eduardo Guimaraes; Dal-Bo, Alexandre Goncalves; Frizon, Tiago Elias Allievi; Dias Filho, Newton Luiz; Journal of Organometallic Chemistry; vol. 834; (2017); p. 73 – 82;,
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. 6523-49-5, name is 4-(1,2,4-Triazol-1-yl)aniline belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 6523-49-5

General procedure: An aqueous solution of cesium carbonate (130 mg, 0.4 mmol) in water (300 ul) was dispensed into each well containing a pre-mixed solution of 4-chloro-N-(4-methoxyphenyl)pyridin-2-amine (58.8 mg, 0.2mmol), respective aniline (0.26 mmol), xantphos (13.9 mg, 0.024mmol) and palladium (II) acetate (3.6 mg, 0.016 mmol) in DMA (1.25 ml). The resultant plate was placed on a pre-heated SOPHAS base plate set at 150 oC and shaken for 1 hour. The plate was cooled to room temperature and MP-TMT resin (90 mg) added to each well prior to shaking overnight at room temperature. The following day each well was transferred to a 48 well filter plate, washing through with an extra aliquot of DMA (200 ul) before a final centrifuge. The crude filtrates were then purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5mu silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford required N2-(4-methoxyphenyl)-N4-[aryl]pyridine-2,4-diamine (23-42%) N2-(4-methoxyphenyl)-N4-[4-(1,2,4-triazol-1-yl)phenyl]pyridine-2,4-diamine (5a) 28%, LCMS (tR = 2.49 min., purity = 100%), ESI+ m/z, 359.08 (M+H)+; 1H NMR (DMSO-d6, 500 MHz): delta 9.20 (1H, s); 8.72 (1H, s), 8.50 (1H, s), 8.20 (1H, s), 7.85 (1H, m), 7.78 (2H, m), 7.49 (2H, m), 7.32 (2H, m), 6.85 (2H, m), 6.45 (1H, s), 6.35 (1H, m), 3.72 (3H, s); 13C NMR (176 MHz, DMSO-d6) delta 157.53, 153.44, 152.03, 150.31, 147.99, 141.77, 140.89, 135.27, 130.70, 120.65, 120.15, 120.01, 113.79, 103.08, 92.70, 55.11; HRMS m/z (ESI+) calculated for C20H18ON6, 359.16149; found: 359.16107.

If you are hungry for even more, make sure to check my other article about 6523-49-5, the application of this compound in the production field has become more and more popular.

Reference:
Article; Burton, Rebecca J.; Crowther, Mandy L.; Fazakerley, Neal M.; Fillery, Shaun M.; Hayter, Barry M.; Kettle, Jason G.; McMillan, Caroline A.; Perkins, Paula; Robins, Peter; Smith, Peter M.; Williams, Emma J.; Wrigley, Gail L.; Tetrahedron Letters; vol. 54; 50; (2013); p. 6900 – 6904;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 1001401-62-2, 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. 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.

Intermediate 26: N-(2-Amino-2-methylcyclopentyl)-2-(2H-1,2,3-triazol-2-yl)benzamide hydrochloride To a solution of 2-(2H-1,2,3-triazol-2-yl)benzoyl chloride (213 mg, 1.03 mmol) (which was prepared from 2-(2H-1,2,3-triazol-2-yl)benzoic acid (CAS number 1001401-62-2; 0.194 g, 1.03 mmol) and thionyl chloride (0.112 ml, 1.541 mmol)) in dry DCM (3.1 ml) was added tert-butyl N-(2-amino-1-methylcyclopentyl)carbamate (Intermediate 24; 200 mg, 0.93 mmol) and DIPEA (489 mul, 2.80 mmol). The reaction was stirred at room temperature for 17 hours and was then partitioned between a saturated solution of sodium bicarbonate and DCM, filtered through a hydrophobic frit and concentrated in vacuo. This was then purified by column chromatography (silica, 0-100% ethyl acetate/petrol). The resulting product was then dissolved in 1,4-dioxane (5 ml) and to this was then added HCl in 1,4-dioxane (4 M, 2.3 ml, 9.33 mmol). The reaction was stirred at room temperature for 1 hour and then concentrated in vacuo, azeotropically distilled with toluene to afford the title compound.

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

Research speed reading 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 belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C3H3N3O2

Example 6 2-{(R)-3-(5?-Chloro-2?-fluorobiphenyl-4-O-2-[(1H-[1,2,3]triazole-4-carbonyl)amino]propyl}-2-methylmalonic Acid [0413] 1H-1,2,3-triazole-4-carboxylic acid (3.3 mg, 29 mumol) and HATU (10.5 mg, 28 mumol) were dissolved in DMF (2.0 mL) and stirred for 15 minutes at room temperature. 2-[(R)-2-Amino-3-(5?-chloro-2?-fluorobiphenyl-4-yl)propyl]-2-methylmalonic acid (12.0 mg, 32 mumol) and DIPEA (9.2 muL, 53 mumol) were added, and the resulting mixture was stirred for 15 minutes at room temperature, at which time LCMS indicated the mass of the desired compound. The mixture was concentrated in vacuo and the residue was purified by preparative HPLC to yield the title compound (5 mg) as a TFA salt. MS m/z [M+H]+ calc’d for C22H20ClFN4O5, 475.11. found 475.

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-4-carboxylic acid, in my other articles.

Reference:
Patent; THERAVANCE BIOPHARMA R&D IP, LLC; Fleury, Melissa; Beausoliel, Anne-Marie; Hughes, Adam D.; Long, Daniel D.; Wilton, Donna A.A.; US2015/209352; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 1338226-21-3, 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. 1338226-21-3, name is 3-(Chloromethyl)-4-methyl-1H-1,2,4-triazol-5(4H)-one, molecular formula is C4H6ClN3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

To a 75L flask was charged a 9.63wt% solution of 3-(chloromethyl)-4-methyl-1H-1,2,4-triazol-5(4H)-one in NMP (11.6 kg,7.55 mol), 3 -chloro-5 -((2-oxo-4-(trifluoromethyl)- 1 ,2-dihydropyridin-3 -yl)oxy)benzonitrile (2.00 kg, 6.29 mol), NMP (3.8 L) and 2-methyl-2-butanol (6.0 L). To the resulting suspension was slowly added N,N-diisopropylethylamine (4.38 L, 25.2 mol) over 4h. The reaction was aged 18h at ambient temperature. The reaction is considered complete when HPLC indicated <1% 3 -chloro-5 -((2-oxo-4-(trifluoromethyl)- 1 ,2-dihydropyridin-3 -yl)oxy)benzonitrileremaining. The tan solution was quenched with acetic acid (1.26 L, 22.0 mol) and aged at ambient temperature overnight. The tan solution was warmed to 70 C. Water (2.52 L) was added and the batch was seeded with anhydrate Form 11(134 g)(procedures for making anhydrate Form II are described in W02014/052171). The thin suspension was aged lh at 70C. Additional water (14.3 L) was added evenly over 7 h. The slurry was aged 2h at 70 C andthen slowly cooled to 20 C over 5 h. The slurry was filtered and washed with 2 :1 NMP/water(6 L), followed by water washes (6 L x 2). The filter cake was dried under N2 to give 2.53 kg(85% yield) of a white solid that was confirmed to be crystalline Form II of the title compoundby X-ray powder defraction analysis. The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.I hope my blog about 3-(Chloromethyl)-4-methyl-1H-1,2,4-triazol-5(4H)-one is helpful to your research. Reference:
Patent; MERCK SHARP & DOHME CORP.; CAO, Yang; GAUTHIER, Donald, R., Jr.; HUMPHREY, Guy, R.; ITOH, Tetsuji; JOURNET, Michel; QIAN, Gang; SHERRY, Benjamin, D.; TSCHAEN, David, M.; WO2015/84763; (2015); A2;,
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. 3179-31-5, name is 1H-1,2,4-Triazole-3-thiol belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C2H3N3S

2-(3-Chloromethyl-benzoylamino-4-methyl-thiophene-3-carboxylic acid ethyl ester (700 mg) obtained by the above reaction was dissolved in anhydrous methylene chloride (5.0 ml), triethylamine (580 mul) and 3-mercapto-1,2,4-triazole (compound B’) (404 mg) were added to the solution at room temperature, and the mixture was stirred at room temperature for 15 hr. After the completion of the reaction, water was added at room temperature, and the reaction mixture was extracted by liquid separation using chloroform. The organic layer was washed with saturated brine, was dried over sodium sulfate, and was then concentrated. The residue was purified by column chromatography eluted with a chloroform-methanol system to give 4-methyl-2-[3(1H-[1,2,4]triazol-3-ylsulfanylmethyl)-benzoylamino]-thiophene-3-carboxylic acid ethyl ester as a useful intermediate (606 mg, yield 72%).

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 3179-31-5, and we look forward to future research findings.

Reference:
Patent; KIRIN BEER KABUSHIKI KAISHA; EP1614676; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 815588-93-3, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 815588-93-3, name is 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid, 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.

A mixture of 1 -methyl-1 H-1 ,2,4-triazole-5-carboxylic acid (7.0 g, 55.1 mmol) in SOCI2 (20 mL) was heated to 70 °C for 2 h. The mixture was concentrated to dryness. The residue was dissolved in Nh /MeOH (7M, 40 mL) and stirred at rt overnight. The precipitated solid was filtered off, extracted with Et20 and dried under reduced pressure to give the title compound

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 815588-93-3.

Reference:
Patent; PHENEX PHARMACEUTICALS AG; STEENECK, Christoph; DEUSCHLE, Ulrich; ALBERS, Michael; HOFFMANN, Thomas; (64 pag.)WO2018/141855; (2018); 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.815588-93-3, name is 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Quality Control of 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid

[00139] To a stirring solution of 7 (0.25 g, 0.88 mmol) in CH2C12 (20 mL) was added HOBt (178 mg, 1.32 mmol), EDCI.HCl (0.2 g, 1.00 mmol) followed by DIPEA (0.4 mL, 2.20 mmol) and Int-C (134 mg, 1.05 mmol) at 0°C. The reaction mixture was stirred at RT for 16 h. After consumption of the starting material (by TLC), the reaction mixture was concentrated under reduced pressure to obtain crude product. This material was purified by column chromatography followed by prep-HP LC purification to afford Compound C (0.07 g, 21percent). 1H-NMR: (500 MHz, DMSO-d6): delta 8.09 (s, 1H), 7.89 (t, 1H), 7.25 (d, 1H), 7.12 (t, 1H), 4.93 (s, 1H), 4.19-4.15 (m, 2H), 4.03 (s, 3H), 3.96-3.91 (m, 4H), 3.44 (d, 1H), 2.25-2.20 (m, 3H), 1.97-1.91 (m, 2H), 1.07 (s, 3H). LCMS (m/z): 394.2 [M++l] HPLC Purity: 93percent

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid ,and how the biochemistry of the body works.

Reference:
Patent; NAUREX, INC.; LOWE, John, A.; KHAN, M., Amin; WO2014/120800; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. 135242-93-2, name is (1-Methyl-1H-[1,2,4]triazol-3-yl)methanol belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: (1-Methyl-1H-[1,2,4]triazol-3-yl)methanol

To a cooled (ice bath) solution of (1-methyl- 1H-1 ,2,4-triazol-3-yl)methanol (400 mg, 3.54 mmol) and DIEA (0.98 mL, 7.1 mmol) in CH2CI2 (35 mL) wasadded MsCI (0.41 mL, 5.3 mmol). The reaction was stirred at roomtemperature for 3 h then quenched with NaHCO3 (sat) (20 mL). The layers wereseparated and the aqueous layer was back-extracted with CH2CI2 (15 mL x 2).The combined organic layers were washed with brine (20 mL x 2) then dried over anhydrous Na2504, filtered and concentrated to give(1-methyl- 1H-1 ,2,4-triazol-3-yl)methyl methanesulfonate (650 mg, 96%) asyellow oil. 1H NMR (400 MHz, ODd3) O [ppm] 8.05 (s, 1H), 5.29(s, 2H), 3.93(s,3H), 3.09 (5, 3H).

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 135242-93-2.

Reference:
Patent; PFIZER INC.; ITEOS THERAPEUTICS; NINKOVIC, Sacha; CROSIGNANI, Stefano; SCALES, Stephanie Anne; MCALPINE, Indrawan James; COLLINS, Michael Raymond; MADERNA, Andreas; WYTHES, Martin; (295 pag.)WO2016/147144; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading 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 belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C3H3N3O2

General procedure: Single crystals of 1 were prepared by a branched tube method [34], 1H-1,2,4-triazole-3-carboxylic acid (0.117 g, 1 mmol), lead(II) nitrate (0.331 g, 1 mmol) and potassium bromide (0.119 g, 1 mmol) were placed in the bottom main of a branched tube. Water was carefully added to fill both arms, and then the arm to be heated was placed in oil bath at 60 C. After 7 days, colorless crystals were deposited in the cooler arm which were filtered off, washed with water and air dried. (0.225 g, yield 54%),

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 1,2,4-Triazole-3-carboxylic acid, in my other articles.

Reference:
Article; Safarifard, Vahid; Morsali, Ali; Inorganica Chimica Acta; vol. 405; (2013); p. 203 – 208;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics