Category: 584-13-4

Reference of 584-13-4, 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. 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

An EtOH solution of 4-amino-1,2,4-triazole (1.26 g, 15 mmol) and 2-pyridinecarboxaldehyde (1.61 g, 15 mmol) was refluxed for 3 h, a large amount of precipitate of the ligand L was filtered off after cooling and dried under vacuum. Yield 80%, 2.08 g. Anal. Calcd. (%) for C8H7N5: C, 55.49; H, 4.04; N, 40.46. Found: C, 55.53; H, 3.97; N, 40.40. IR (cm-1, KBr pellet): 3094 (s), 1617 (w), 1587 (m), 1503 (s), 1475 (s), 1439 (m), 1392 (w), 1315 (w), 1287 (m), 1223 (m), 1173 (s), 1093 (w), 1058 (s), 995 (m), 982 (w), 964 (w), 939 (w), 869 (m), 781 (s), 760 (w), 743 (m), 622 (s), 521 (m), 505 (w).

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 4H-1,2,4-Triazol-4-amine, hurry up and to see.

Reference:
Article; Dang, Dong-Bin; Li, Meng-Meng; Bai, Yan; Zhou, Rui-Min; Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy; vol. 103; (2013); p. 101 – 107;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 584-13-4, 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. 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

REFERENTIAL EXAMPLE 2 STR7 2.52 Grams of 4-amino-1,2,4-triazole was added little by little to a dimethylsulfoxide suspension of 1.2 g of sodium hydride at room temperature. After stirred for 3 hours at room temperature, 1.21 g of 4-fluorobenzonitrile was added thereto all at a time, and stirring was continued for further one hour. Water was added to the reaction solution, and the mixture was then extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was removed by distillation under reduced pressure. The crystals obtained were washed with ethyl acetate to give 1.09 g of 4-[(4-cyanophenyl)amino]-4H-1,2,4-triazole. Nuclear Magnetic Resonance Spectrum (DMSO-d6, TMS internal standard) delta: 6.57 (2H, d, J=9 Hz), 7.69 (2H, d, J=9 Hz), 8.83 (2H, s) Mass Spectrometry (m/z): 185 (M+)

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 4H-1,2,4-Triazol-4-amine is helpful to your research.

Reference:
Patent; Yamanouchi Pharmaceutical Co., Ltd.; US5674886; (1997); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 584-13-4, 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, 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: In a typical experiment Pd(OAc)2 (5.6mg, 0.025mmol), triphenylphosphine (13.2mg, 0.05mmol), iodoalkene (1-4) or iodoarene (5-19) (1mmol) were dissolved in DMF (10mL) under argon in a three-necked flask equipped with a reflux condenser and a balloon on the top. Aminotriazole nucleophile (a, b or c) (1.2mmol) and triethylamine (0.5mL) were added. The atmosphere was changed to carbon monoxide. (Caution: High pressure carbon monoxide should only be used with adequate ventilation (hood) using CO sensors as well.) The reaction was conducted for the given reaction time upon stirring at 70C. The mixture was then concentrated and evaporated to dryness. Toluene (15mL) was added to the residue, the precipitate (product) was filtered, washed with water on the filter and dried. The off-white powder-like material was dissolved in methanol, the palladium-black was filtered off and methanol was evaporated.

We very much hope you enjoy reading the articles and that you will join us to present your own research about 584-13-4, Happy reading!

Reference:
Article; Gergely, Mate; Boros, Borbala; Kollar, Laszlo; Tetrahedron; vol. 73; 48; (2017); p. 6736 – 6741;,
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. 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. HPLC of Formula: C2H4N4

2.6 g (0.15 mol)4-aminotriazole and 13.5 g (0.05 mol)4,4′-dicyanodiphenylmethane (compound 4), 250 ml of acetonitrile was added and the temperature was refluxed for 24 h, Drop to room temperature, precipitate solid, filter, the resulting solid dissolved in 120ml of water, Add 12ml concentrated hydrochloric acid, stirring and dissolving. 5.0 g of sodium nitrite was dissolved in 40 ml of water and then added dropwise to the above reaction solution at 0-5 C. After dripping, the reaction temperature was allowed to react at 0-5 C for 6 h, Reaction end, dropping ammonia water adjusted pH = 7, The filter cake was washed with water and dried to give 12.6 g of the final product compound 5 (letrozole) in 88.7% yield.

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 584-13-4, and we look forward to future research findings.

Reference:
Patent; Zhejiang University of Technology; ZHANG, Xingxian; LI, Pengcheng; Qi, Weipeng; ZHOU, Xinyu; ZHOU, Jinjin; (9 pag.)CN105801501; (2016); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 584-13-4, 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, 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Into a mixture of 78.75 mmol of 4-amino-1,2,4-triazole and 50 mmol of monochlorotriterpenoneAdd 150ml of acetonitrile and 50mmol of sodium tert-butoxide, and heat to 60C for 5h. Qualitative analysis, the content of monochlorotrifluoroacetone ?After 1 wt%, the temperature of the system was lowered to room temperature, and solids gradually precipitated. After the solids were completely precipitated, they were suction-filtered and the solids obtained by suction filtration were collected.Rinse with tetrahydrofuran to obtain 3,3-dimethyl-1-(1H-1,2,4-triazolium-1-yl)butan-2-one chloride as a solid sulfonium salt.10.5g, yield 96%;

In the meantime we’ve collected together some recent articles in this area about 4H-1,2,4-Triazol-4-amine to whet your appetite. Happy reading!

Reference:
Patent; Jiangsu Jianpai Agrochemical Co., Ltd.; Liu Zhiyong; Sun Yaquan; Liu Hui; Li Ming; (10 pag.)CN107118167; (2017); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 584-13-4, 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. 584-13-4, name is 4H-1,2,4-Triazol-4-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: In a typical experiment Pd(OAc)2 (5.6mg, 0.025mmol), triphenylphosphine (13.2mg, 0.05mmol), iodoalkene (1-4) or iodoarene (5-19) (1mmol) were dissolved in DMF (10mL) under argon in a three-necked flask equipped with a reflux condenser and a balloon on the top. Aminotriazole nucleophile (a, b or c) (1.2mmol) and triethylamine (0.5mL) were added. The atmosphere was changed to carbon monoxide. (Caution: High pressure carbon monoxide should only be used with adequate ventilation (hood) using CO sensors as well.) The reaction was conducted for the given reaction time upon stirring at 70C. The mixture was then concentrated and evaporated to dryness. Toluene (15mL) was added to the residue, the precipitate (product) was filtered, washed with water on the filter and dried. The off-white powder-like material was dissolved in methanol, the palladium-black was filtered off and methanol was evaporated.

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

Reference:
Article; Gergely, Mate; Boros, Borbala; Kollar, Laszlo; Tetrahedron; vol. 73; 48; (2017); p. 6736 – 6741;,
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.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. 584-13-4

General procedure: In a typical experiment Pd(OAc)2 (5.6mg, 0.025mmol), triphenylphosphine (13.2mg, 0.05mmol), iodoalkene (1-4) or iodoarene (5-19) (1mmol) were dissolved in DMF (10mL) under argon in a three-necked flask equipped with a reflux condenser and a balloon on the top. Aminotriazole nucleophile (a, b or c) (1.2mmol) and triethylamine (0.5mL) were added. The atmosphere was changed to carbon monoxide. (Caution: High pressure carbon monoxide should only be used with adequate ventilation (hood) using CO sensors as well.) The reaction was conducted for the given reaction time upon stirring at 70C. The mixture was then concentrated and evaporated to dryness. Toluene (15mL) was added to the residue, the precipitate (product) was filtered, washed with water on the filter and dried. The off-white powder-like material was dissolved in methanol, the palladium-black was filtered off and methanol was evaporated.

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

Reference:
Article; Gergely, Mate; Boros, Borbala; Kollar, Laszlo; Tetrahedron; vol. 73; 48; (2017); p. 6736 – 6741;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 584-13-4, New discoveries in chemical research and development 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, 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.

General procedure: The complex was prepared by dissolving 4-hydroxypyridine (0.85g, 8.8mmol) in an aqueous solution of Zn(N3)2 saturated with hydrazoic acid (20mL, 8.9mmol Zn) at 80C, then the resulting solution was allowed to stand at room temperature. After three days, the colorless crystals which separated were collected by filtration and dried in air (yield: 0.76g, 42%).

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 4H-1,2,4-Triazol-4-amine.

Reference:
Article; Mautner, Franz A.; Berger, Christian; Gspan, Christian; Sudy, Beate; Fischer, Roland C.; Massoud, Salah S.; Polyhedron; vol. 130; (2017); p. 136 – 144;,
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. 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. Safety of 4H-1,2,4-Triazol-4-amine

General procedure: Synthesis of triazole Schiff?s bases was reportedpreviously [44]. Briefly, 4-arylimino-1,2,4-triazoles (1-14)and 3-arylimino-1,2,4-triazoles (15-23) were synthesized byrefluxing 4-amino-1,2,4-triazoles, or 3-amino-1,2,4-triazoles(2 mM) with equimolar amounts of substituted benzaldehydeand H2SO4 (2 mL) in ethanol (15 mL) for 4-10 h. Reactionprogress was monitored by TLC under UV light at 254 and365 nm or via exposure to iodine vapours. After completionof reaction, the solvent was vaporised under reducedpressure on a rotary evaporator. Resulting compounds werewashed with hexane and crystallized from ethanol to obtain apure compounds.

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 4H-1,2,4-Triazol-4-amine help many people in the next few years.

Reference:
Article; Choudhary, Muhammad I.; Imad, Rehan; Khan, Khalid M.; Naqeeb, Uzma; Shaikh, Muniza; Siddiqui, Salman; Subzwari, Fakiha; Zafar, Humaira; Medicinal Chemistry; vol. 16; 4; (2020); p. 575 – 591;,
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. 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. Application In Synthesis of 4H-1,2,4-Triazol-4-amine

3,5-bis(1-cyano-1-methylethyl) benzyl bromide obtained in Step IV (600 g, 1.965 mol) was heated with 4-amino-1,2,4-triazole (247.9 g, 2.948 mol) in isopropanol (4.5 L) for 7 to 7.5 hours at 80 C. to 85 C. The reaction mass was gradually cooled to 20 C. to 25 C. The reaction mass was stirred for 1 hour. The reaction mass was further cooled to 0 C. to 5 C., stirred for 2 hours, filtered, and washed with dichloromethane (2×500 ml). The reaction mass was sucked dry. The dried cake was further dried at 40 C. to 45 C. under vacuum to obtained 2,2′-[5-(4-amino-1,2,4-triazolium-1-ylmethyl)-1,3-phenylene]di(2-methylpropio-nitrile)bromide (497.5 g, 65.0% yield). MP-198-203 C. IR (In cm-1, KBr): 3204, 3116, 3080, 2987, 2229, 1643, 1607, 1565, 1469, 1438, 1196, 1004 H1NMR (in CDCl3,delta (ppm)]: 10.31 (1H,s),9.20 (1H,s),7.66-7.63 (3H,s),6.984 (2H,s),5.657 (2H,s),1.71 ( 12H,s). M+[309] (free base)

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 4H-1,2,4-Triazol-4-amine, in my other articles.

Reference:
Patent; Glenmark Pharmaceuticals Limited; US2006/189670; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics