Tag: M.W=0-100

Research speed reading in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 584-13-4, name is 4H-1,2,4-Triazol-4-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. SDS of cas: 584-13-4

General procedure: In a typical procedure, 3-arylimino-1,2,4-triazoles and 4-arylimino-1,2,4-triazoles 1-25 were synthesized by mixing 3-amino-1,2,4-triazole or 4-amino-1,2,4-triazole (2 mmol), substituted benzaldehydes (2 mmol) and H2SO4 (2 mL) in ethanol (15 mL). The mixtures were refluxed for 4-10 h, while progress of the reaction was monitored through thin layer chromatography. When reaction was completed, solvent was evaporated on a rotary evaporator under reduced pressure and residue was washed with hot hexane. Resulting compounds were crystallized by ethanol to give title compounds in moderate to good yields.

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 584-13-4.

Reference:
Article; Khan, Khalid Mohammed; Siddiqui, Salman; Saleem, Muhammad; Taha, Muhammad; Saad, Syed Muhammad; Perveen, Shahnaz; Choudhary, M. Iqbal; Bioorganic and Medicinal Chemistry; vol. 22; 22; (2014); p. 6509 – 6514;,
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. 61-82-5, name is 1H-1,2,4-Triazol-5-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. category: Triazoles

General procedure: 20 mg of gamma-Fe2O3Ph-PMO-NaHSO4 was added to a roundbottomflask containing an aromatic aldehyde (1 mmol), 3-amino-1,2,4-triazole 2 (1.0 mmol), b-diketones (dimedone 3, 1,3-cyclohexadione 4 or ethyl acetoacetate 5) (1.0 mmol) and stirredunder solvent-free conditions at 100 C in certain times. Meanwhile,the progress of the reactionwas indicated by TLC (n-hexane:ethyl acetate; 7:3). With completing the reaction, 3ml ethanol waspoured and the magnetic nanocomposite was separated in thepresence of a magnetic stirring bar; the reaction mixture becameclear. The crude product was recrystallized from ethanol to give thepure product. The pure products were characterized by conventionalspectroscopic methods. Physical and spectral data for theselected compounds are represented below.

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 61-82-5

Reference:
Article; Haghighat, Mahdieh; Shirini, Farhad; Golshekan, Mostafa; Journal of Molecular Structure; vol. 1171; (2018); p. 168 – 178;,
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. Computed Properties of C2H3N3

Potassium carbonate (14.0 g, 101 .35 mmol) was added to solution of 2,3-dichloro-5- nitropyridine (10.0 g, 51 .82 mmol) in THF (60 mL) followed by addition of 2H-1 ,2,3-triazole (3.4 mL, 58.7 mmol). The resulting mixture was stirred at rt until reaction was deemed completed as judged by TLC (-16 h), then diluted with water (300 mL). The aqueous layer was extracted with EtOAc (2 x 300 mL), the organic layer was dried over sodium sulphate, filtered and (0326) concentrated under reduced pressure. The crude product was purified by column (0327) chromatography on silica (100-200 mesh), eluted at 20% EtOAc in p.ether which gave the title compound (7.0 g, 60%) as a solid with 99.42% LCMS purity. MS (ES+) 226.03 [M+H]+.

If you are hungry for even more, make sure to check my other article about 288-36-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MEDIVIR AB; ALBERTELLA, Mark; OeBERG, Fredrik; (96 pag.)WO2018/141749; (2018); 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. 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

To a solution of 5-fluoro-2-iodo- benzoic acid (3.86 g, 14.65 mmol), 2H-[1 ,2,3]triazole (2.5 g, 36.2 mmol),Cs2CO3 (8.62 g, 24.5 mmol), trans-N, N’-dimethyl-cyclohexane-1 ,2-diamine (0.4 ml_), Cul (244 mg) and DMF (13 ml_) were added to a microwave ready vessel and heated to 100 C for 10 min. The mixture was cooled, diluted with water, and extracted with EtOAc. The aqueous layer was acidified and extracted with EtOAc. The organic layer was dried over Na2SO and concentrated. The residue was purified by FCC (SiO2, gradient DCM to 10% MeOH/1 %HOAc/DCM) gave the product as a white powder, (2.14 g, 71 %). 1H NMR (400 MHz, CD3OD): 7.91 (s, 2H), 7.76 (dd, J = 8.9, 4.8 Hz, 1 H), 7.59 (dd, J = 8.5, 2.9 Hz, 1 H), 7.49 – 7.42 (m, 1 H).; Intermediate 53: 2-[1 ,2,3]Triazol-1 -yl-benzoic acid.The title compound was isolated from the synthesis of Intermediate 13. 1H NMR (400 MHz, CD3OD): 6.70 (d, J = 0.9 Hz, 1 H), 6.50 (dd, J = 7.7, 1 .5 Hz, 1 H), 6.30 (d, J = 1 .0 Hz, 1 H), 6.24.6.18 (m, 1 H), 6.17 -6.1 1 (m, 1 H), 6.01 (dd, J = 7.8, 1 .0 Hz, 1 H).

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 288-36-8

Reference:
Patent; JANSSEN PHARMACEUTICA NV; BRANSTETTER, Bryan, James; LETAVIC, Michael, A.; LY, Kiev, S.; RUDOLPH, Dale, A.; SAVALL, Brad, M.; SHAH, Chandravadan, R.; SHIREMAN, Brock, T.; WO2011/50200; (2011); 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 dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 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.

To a solution of phenol 11a (200 mg, 0.441 mmol) and cesium carbonate (158 mg, 0.485 mmol) in DMF (10 mL) was added 1,2-dibromoethane (96 muL, 1.11 mmol). The resulting mixture was stirred at room temperature for 60 h. After dilution with water, the mixture was extracted with EtOAc. The organic layer was dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was carried on to the next step without further purification.To a solution of the crude bromide in DMF (10 mL) was added 1,2,4-triazole sodium derivative (122 mg, 1.34 mmol). The mixture was stirred at room temperature for 15 h. After dilution with water, the mixture was extracted with EtOAc. The organic layer was dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was purified using RP preparative HPLC to provide the titled compound 11g (78 mg, 33%, 2 steps). 1H NMR (400 MHz, DMSO-d6) delta 8.59 (s, 1H), 8.02 (s, 1H), 7.95 (s, 1H), 7.77-7.71 (m, 1H), 7.47 (s, 1H), 7.13 (s, 1H), 6.78 (d, J = 3.2 Hz, 1H), 6.62-6.58 (m, 1H), 5.02-4.92 (m, 2H), 4.71-4.35 (m, 8H), 3.71-3.61 (m, 1H), 3.49-3.41 (m, 1H), 3.38-3.15 (m, 5H); MH+ 549.

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:
Article; Lee, Suk Ho; Kim, Min Ju; Lee, Sung-Han; Kim, Jeongmin; Park, Hyun-Ju; Lee, Jinhwa; European Journal of Medicinal Chemistry; vol. 46; 7; (2011); p. 2662 – 2675;,
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. 7170-01-6

A mixture of compound 5z (220 mg, 0.5 mmol), 3-methyl-1,2,4-triazole (830 mg, 10 mmol; 20 eq.; prepared by the method described in Coll. Czech. Chem. Comm. 1985, 49, 2492), copper powder (63.5 mg, 1 mmol; 2 eq.), potassium carbonate (138 mg, 1 mmol; 2 eq.) was flushed with anhydrous nitrogen and heated in a sealed tube at 160 C. for 11 h. Upon cooling, to the mixture was added MeOH, and the insoluble material was filtered. The filtrate was concentrated in vacuo and purified by C-18 reverse phase column (Prep. System eluting with gradient 0-70% MeOH-water containing 0.1% TFA) to obtain 24 mg (0.049 mmol, Y. 9.8%) of the title compound Example 317 as amorphous powder (TFA salt): MS m/e 488 (MH); 1H NMR (CD3OD) delta ppm 1.30, 1.35 (3H, 2d, J=7 Hz), 2.54 (3H, s, CH3), 3-4.5 (8H, m, CH2N), 4.04, 4.05 (3H, 2s, CH3O), 7.46, 7.47 (5H, 2s, Ar-Hs), 7.85, 7.86 (1H, 2s), 8.28, 8.31 (1H, 2s), 9.22 (1H, s).

If you are hungry for even more, make sure to check my other article about 7170-01-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Wang, Tao; Zhang, Zhongxing; Meanwell, Nicholas A.; Kadow, John F.; Yin, Zhiwei; Xue, Qiufen May; Regueiro-Ren, Alicia; Matiskella, John D.; Ueda, Yasutsugu; US2004/110785; (2004); 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. 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

A mixture of Zn(NO3)26H2O (0.030 g, 0.1 mmol), H3bpt (0.025 g,0.1 mmol), Hdatrz (0.01 g, 0.1 mmol), DMF (3 mL) and CH3OH(1 mL) was placed in a small vial at 90 C for 72 h and then cooledto room temperature slowly. Colorless block crystals were obtainedin 42percent yield based on Zn(NO3)26H2O. Anal. calcd. forC36H29N11O12Zn3 (1004.88): C, 42.99; H, 2.89; N, 15.33percent. Found: C,42.89; H, 2.85; N, 15.42percent. IR (cm1): 3422(w), 1712(m), 1675(s),1587(m), 1509(m), 1389(m), 1378(m), 1109(w), 1025(w), 958(m),893(m), 826(m), 778(w), 690(w), 674(w), 589(w), 562(w).

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 3,5-Diamino-1,2,4-triazole, in my other articles.

Reference:
Article; Zhao, Haixiang; Dong, Yanli; Liu, Haiping; Journal of Molecular Structure; vol. 1105; (2016); p. 112 – 117;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7170-01-6, 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. 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 mixture of Zn(NO3)2.6H2O (30.0 mg, 0.1 mmol), 3-amino-1,2,4-triazole (8.4 mg, 0.1 mmol), H2bdc (8.3 mg, 0.05 mmol) and HNO3 (0.08 mL) in a mixed solvents of DMA (1.5 mL), MeOH(1.5 mL) and H2O (3 mL) was placed in a glass vial (23 mL) and heated at 100 C for 3 days. Colorless polyhedral crystals were obtained and washed with MeOH (yield: 75% based on ligand).Anal. Calc. (Found) for C12H11Zn2N8O4.5: C, 30.66 (30.62); H, 2.36(2.26); N, 23.84 (23.82)%. Selected IR data (KBr, cm-1): 3413,3337, 3231, 1633, 1588, 1541, 1390, 1404, 1290, 1227, 1067,1013, 885, 830, 746, 583.

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

Reference:
Article; Liu, Jie; Wei, Yuhui; Bao, Fenlin; Li, Guixiang; Liu, Huiyan; Wang, Haiying; Polyhedron; vol. 169; (2019); p. 58 – 65;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 288-36-8, 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. 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.

1,2,3-triazole(0.7 ), 2-iodo-benzoic acid (1.0 ), cesium carbonate (2.36 g, 7.20 mmol)Trans-N, N’-dimethyl-1,2-cyclohexanediamine (0.10 g, 0.75 mmol), cuprous iodide (0.08 g, 0.40 mmo 1), N, N-dimethyl Amide (18 mL)Were successively added to a 100 mL single-necked round bottom flask and gradually warmed to 100 C for 4 hours under nitrogen protection.The reaction was quenched, cooled, diluted with tap water and extracted with ethyl acetate (200 mL X).The aqueous layer was acidified with concentrated hydrochloric acid (rhoH- = 1 ~ 2) and extracted with ethyl acetate (200 mL x 2). The combined organic layers were dried and dried over anhydrous sodium sulfate. The filtrate was evaporated under reduced pressure and purified by column chromatography. (Dichloromethane / methanol (v / v) = 30/1) gave the title compound (yellow solid, 0.511 g, 67%)

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, hurry up and to see.

Reference:
Patent; Guangdong Dongyangguang Pharmaceutical Co., Ltd.; Jin Chuanfei; Wei Dehuo; Xue Yaping; Zhang Yingjun; (44 pag.)CN106674207; (2017); A;,
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. 61-82-5, name is 1H-1,2,4-Triazol-5-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C2H4N4

General procedure: 20 mg of gamma-Fe2O3Ph-PMO-NaHSO4 was added to a roundbottomflask containing an aromatic aldehyde (1 mmol), 3-amino-1,2,4-triazole 2 (1.0 mmol), b-diketones (dimedone 3, 1,3-cyclohexadione 4 or ethyl acetoacetate 5) (1.0 mmol) and stirredunder solvent-free conditions at 100 C in certain times. Meanwhile,the progress of the reactionwas indicated by TLC (n-hexane:ethyl acetate; 7:3). With completing the reaction, 3ml ethanol waspoured and the magnetic nanocomposite was separated in thepresence of a magnetic stirring bar; the reaction mixture becameclear. The crude product was recrystallized from ethanol to give thepure product. The pure products were characterized by conventionalspectroscopic methods. Physical and spectral data for theselected compounds are represented below.

If you are hungry for even more, make sure to check my other article about 61-82-5, the application of this compound in the production field has become more and more popular.

Reference:
Article; Haghighat, Mahdieh; Shirini, Farhad; Golshekan, Mostafa; Journal of Molecular Structure; vol. 1171; (2018); p. 168 – 178;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics