Month: September 2021

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. 13273-53-5, name is 4-Bromo-1-methyl-1H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C3H4BrN3

Compound 58-4 (50 mg, 0.13 mmol, 1.0 eq), compound 58-4A (21 mg, 0.13 mmol, 1.0 eq), Pd(dppf)Cl2 (4.6 mg, 6.3 umol, 0.05 eq) and Na2C03 (27 mg, 0.26 mmol, 2.0 eq) in Dioxane (2 mL) and H20 (0.2 mL) was de-gassed and then stirred at 100 C for 16 hours under N2. The mixture was diluted with water (10 mL) and the resultant mixture was extracted with EA (25 mL * 3). The combined organic layers were dried over Na2SC>4, filtered and concentrated to dryness under reduced pressure. The residue was purified by preparative high performance liquid chromatography. The pure fractions were collected and the volatiles were removed under vacuum. The residue was re-suspended in water (5 mL) and the resulting mixture was lyophilized to dryness to remove the solvent residue completely. (0896) Compound 58 (2.13 mg, 4.8% yield) was obtained. LCMS (ESI): RT = 0.740 min, mass calcd. for C16H23N5O2S 349.45, m/z found 350.0 [M+H]+, 1HNMR (400MHz, CDCl3-

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 4-Bromo-1-methyl-1H-1,2,3-triazole ,and how the biochemistry of the body works.

Reference:
Patent; VIVACE THERAPEUTICS, INC.; KONRADI, Andrei W.; LIN, Tracy Tzu-Ling Tang; (294 pag.)WO2019/40380; (2019); 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. Computed Properties of C2H5N5

A mixture of Hdatrz (19.8mg, 0.2mmol), CH3-H2ip (36.0mg, 0.2mmol) and Co(OAc)2·4H2O (24.9mg, 0.1mmol) was dissolved in mixed H2O?CH3OH (v:v=1:1, 10.0mL) solution, and the initial pH value of the reactant mixture was adjusted to ca. 6 by slow addition of triethylamine with constant stirring. The resulting mixture was then transferred into a Teflon-lined stainless steel vessel (23.0mL) and heated at 160°C for 96h under autogenous pressure. After the mixture was cooled to room temperature at a rate of 1.4°Ch?1, red block-shaped crystals suitable for X-ray analysis were obtained directly, washed with water and dried in air (Yield: 50percent, based on CoII salt). Anal. Calc. for C12H15CoN5O5: C, 39.14; H, 4.11; N, 19.02. Found: C, 39.14; H, 4.12; N, 19.05percent. IR (KBr pellet, cm?1): 3445 (s), 3333 (w), 3070 (w), 1670 (s), 1633 (s), 1546 (s), 1439 (s), 1370 (s), 1246 (w), 1083 (m), 1032 (m), 817 (w), 783 (m), 751 (w), 723 (m).

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, Hong; Li, Hong-Xue; Liu, Zhong-Yi; Yang, En-Cui; Zhao, Xiao-Jun; Polyhedron; vol. 101; (2015); p. 29 – 36;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7411-23-6, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 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.

A solution of 3,5-dibromo-1H-1,2,4-triazole (250 mg, 1.1 mmol), 2-bromoethyl methyl ether (0.17 mL, 2.2 mmol) and triethylamine (0.46 mL, 3.3 mmol) in DMA (5 mL) was stirred at 55 C for 18 h. The reaction mixture was filtered and the solvent removed in vacuo. The product was purified via silica column chromatography eluting with 0-100% EtOAc in Pet. Ether to yield 3,5-dibromo-1-(2-methoxyethyl)-1,2,4-triazole (260 mg, 0.91 mmol, 83% yield) as a colourless oil. UPLC-MS (ES+, Method A), 1.34 min, m/z 285.9 [M+H]+.

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 3,5-Dibromo-1H-1,2,4-triazole.

Reference:
Patent; REDX PHARMA PLC; JONES, Clifford, D.; BUNYARD, Peter; PITT, Gary; BYRNE, Liam; PESNOT, Thomas; GUISOT, Nicolas, E.S.; (318 pag.)WO2019/145729; (2019); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 7343-33-1, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 7343-33-1, name is 5-Bromo-1H-1,2,4-triazole, 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.

Example 52Preparation of Compound 71 Step A – Synthesis of Compound 52BCompound 52A (1.08 g, 4.8 mmol) was combined with 3-brorno-[1 ,2,4]triazole (0.70 g, 4.7 mmol), trtphenylphosphine (1.49 g, 5.7 mmol) and diisopropyl azodicarboxylate (1.12 mL, 5.7 mmol) in THF (15 mL). The resulting reaction was allowed to stir at room temperature for 18 hours, then the reaction mixture was concentrated in vacuo to provide Compound 52B, which was used without further purification.

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 5-Bromo-1H-1,2,4-triazole.

Reference:
Patent; SCHERING CORPORATION; SHAH, Unmesh, G.; BOYLE, Craig, D.; CHACKALAMANNIL, Samuel; NEUSTADT, Bernard, R.; HARRIS, Joel, M.; STAMFORD, Andrew; GREENLEE, William, J.; NEELAMKAVIL, Santhosh, Francis; WO2010/75273; (2010); 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. 103755-58-4, name is (1-Phenyl-1H-1,2,3-triazol-4-yl)methanol belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Product Details of 103755-58-4

General procedure: Propynyl alcohol (2.2 g, 0.04 mol), cuprous iodide (0.4 g, 2.0 mmol) andN,N-diisopropylethylamine (5.2 g, 0.04 mol) were sequentially added into a stirred solution of intermediate9a-9l(0.04 mol) in absolute ethanol (10 v/w) at 25oCfor 24 h. The insoluble matter removed by filtration, and the filtrate is concentrated. Next the filtrate was poured into water, extracted with dichloromethane, and the combined organic layer was washed with water, dried over anhydrous Na2SO4and evaporated to dryness to give compounds10a-10l. Intermediate10a-10l(0.10 mol) without purification was dissolved in glacial acetic acid (10 v/w), chromium trioxide (2 mL, 0.01 mol) was added dropwise and the mixture was stirred 1 h at 100oC.After cooling to r.t., solvent was removed by concentrate under reduced pressure. The residue was added to water under stirring, the precipitates were collected by filtration and washed with water to obtain compounds11a-11l.

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-Phenyl-1H-1,2,3-triazol-4-yl)methanol, in my other articles.

Reference:
Article; Xu, Qiaoling; Dai, Baozhu; Li, Zhiwei; Xu, Le; Yang, Di; Gong, Ping; Hou, Yunlei; Liu, Yajing; Bioorganic and Medicinal Chemistry Letters; vol. 29; 19; (2019);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 60166-43-0, 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. 60166-43-0, name is 1,4-Dimethyl-1H-1,2,3-triazole, molecular formula is C4H7N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

In a pressure vessel equipped with a magnetic stirring bar, was added (Patent; BRISTOL-MYERS SQUIBB COMPANY; NORRIS, Derek J.; VACCARO, Wayne; DEBENEDETTO, Mikkel V.; DEGNAN, Andrew P.; DELUCCA, George V.; DESKUS, Jeffrey A.; HAN, Wen-Ching; KUMI, Godwin Kwame; SCHMITZ, William D.; STARRETT, John E., JR.; HILL, Matthew D.; HUANG, Hong; (563 pag.)WO2016/183118; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 118863-62-0, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 118863-62-0, name is 3-(4-Bromophenyl)-1H-[1,2,4]triazole, molecular formula is C8H6BrN3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Step 1: 3-(4-Bromophenyl)-1-(4-methoxybenzyl)-1H-1,2,4-triazole A mixture of 3-(4-bromophenyl)-1H-1,2,4-triazole (5 g, 22.3 mmol), 1-(chloromethyl)-4-methoxybenzene (4.19 g, 26.8 mmol) and cesium carbonate (14.6 g, 44.9 mmol) in DMF (100 mL) was stirred at room temperature for 16 h. The resulting solution was diluted with water and extracted with ethyl acetate. The organic layers were combined and concentrated in vacuo. The crude product was purified via flash chromatography on silica gel (solvent gradient, 0-5% ethyl acetate in petroleum ether) to yield 6 g (78%) of the title compound as a white solid. LCMS (ESI): [M+H]+=344/346.

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 3-(4-Bromophenyl)-1H-[1,2,4]triazole.

Reference:
Patent; Genentech, Inc.; Braun, Marie-Gabrielle; Garland, Keira; Hanan, Emily; Purkey, Hans; Staben, Steven T.; Heald, Robert Andrew; Knight, Jamie; Macleod, Calum; Lu, Aijun; Wu, Guosheng; Yeap, Siew Kuen; (183 pag.)US2018/65983; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 288-36-8, New Advances in Chemical Research 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, 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.

The preparation method of 1- [9- (1H-1,2,4-triazol-1-yl) anthracene-10-yl] -1H-1,2,4-triazole is characterized by The organic compounds are prepared under heating conditions using 9,10-dibromoanthracene, triazole, potassium carbonate and copper oxide in a DMF polar solvent using a “one-pot” process, wherein 9,10-dibromoanthracene: Triazole: potassium carbonate: copper oxide molar ratio of 2: 10: 30: 1;

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 1H-1,2,3-Triazole.

Reference:
Patent; Tianjin Normal University; WANG, YING; (12 pag.)CN104478901; (2016); B;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 16681-70-2, 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, 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.

In this example, Compound 1 of the Scheme 2 is coupled with compound 2 of Scheme 2 at the presence of an activating agent BOP to give product 3 of Scheme 2, which then alkylated with substituted benzyl bromide 4 of Scheme 2 to produce the desired product 6 of Scheme 2 and by product 5 of Scheme 2. Compound 6 of Scheme 2 is purified by a silica gel column and then reacted with TFA to cleave the Boc group. Compound 7 of Scheme 2 is alkylated with benzyl bromide, and the reaction mixture is purified by HPLC to yield final product compound of Formula I, which in the exemplified scheme is a white solid with purity >98%, overall yield about 32%.

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 1H-[1,2,3]Triazole-4-carboxylic acid.

Reference:
Patent; INTRA-CELLULAR THERAPIES, INC.; LI, Peng; PENG, Youyi; TOMESCH, John; WENNOGLE, Lawrence P.; ZHANG, Qiang; (15 pag.)US2018/333403; (2018); 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. 3641-13-2, name is 5-Amino-4H-1,2,4-triazole-3-carboxylic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 3641-13-2

3-Amino-1,2,4-triazole-5-carboxylic acid hydrate (1.28g, O.OImol) was dissolved in water (50ml). Sodium nitrite (0.76g, 0.011mol) was added and the solution was stirred until the sodium nitrite had dissolved. The mixture was then added dropwise to a cooled mix of ice-water (30g) and concentrated hydrochloric acid (3.0ml) at 0-5C. The mixture was stirred for 30 minutes at 0-5C and then excess nitrous acid was destroyed by the addition of sulfamic acid. The resultant diazonium salt suspension was added slowly to a solution of 6-hydroxyquinoline (1.45g, O.OImol) in water (100ml) at pH 8-9 (adjusted with 2M NaOH) and cooled to below 5C. The reaction mixture was then stirred at 0-5C for one hour and the product was precipitated by acidification to pH 4 with 2M HCI and collected by filtration. The product was washed with water and then dried in a vacuumdesiccator to give an orange solid.

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 5-Amino-4H-1,2,4-triazole-3-carboxylic acid ,and how the biochemistry of the body works.

Reference:
Patent; AVECIA LIMITED; WO2004/108834; (2004); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics