Category: Triazoles

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.

To a stirred solution of EE-1 (10 g, 144.79 mmol) in water (100 mL) is added EE-2 (13.73 g, 173.75 mmol) dropwise at 0 C and the reaction mixture is stirred at 0 C for 7 hours. The reaction mixture is filtered and extracted with diethyl ether. The combined organics are concentrated in vacuo to yield EE-3.

In the meantime we’ve collected together some recent articles in this area about 1H-1,2,3-Triazole to whet your appetite. Happy reading!

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; HUGHES, Robert Owen; LI, Xiang; NEMOTO, Peter Allen; SMITH KEENAN, Lana Louise; WU, Lifen; XIONG, Zhaoming; (65 pag.)WO2018/111803; (2018); 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. 1186050-58-7, name is 2-Fluoro-6-(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. Product Details of 1186050-58-7

Example 1 : CIP (76 mg, 0.27 mmol) is added to a stirred mixture of A-1 (48 mg, 0.25 mmol), B-1 (60 mg, 0.21 mmol) and DIPEA (109 muIota_, 0.63 mmol) in dry ACN (2.0 mL) at RT. After 16 h the reaction is treated with ACN/water and purified by preparative LCMS (using a solvent gradient H20/ACN with NH4OH) to afford 50 mg of compound Example 1. ESI-MS: 420 [M+Na]+; HPLC (Rt): 1.02 min (method G). For some examples the reaction times are adapted: 4h for Example 7; 1 h for Example 9; 2h at 60C for Example 16:

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 1186050-58-7

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; RIETHER, Doris; FERRARA, Marco; HEINE, Niklas; LESSEL, Uta; NICHOLSON, Janet Rachel; PEKCEC, Anton; SCHEUERER, Stefan; (69 pag.)WO2017/178341; (2017); 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. 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. Quality Control of 2-(2H-1,2,3-Triazol-2-yl)benzoic acid

A solution of (3S,6R)-6-methylpiperidin-3-ol (2.36 g, 20.5 mmol), 2-(2H- 1,2,3- triazol-2-yl)benzoic acid (4.65 g, 24.6 mmol), EDC (7.86 g, 41.0 mmol), l-hydroxy-7- azabenzotriazole (5.58 g, 41.0 mmol), and triethylamine (8.57 mL, 61.5 mmol) in DMF (130 mL) was stirred at 50 C overnight, then diluted with saturated aqueous sodium bicarbonate and extracted 5x with ethyl acetate. The organics were washed with brine, dried over magnesium sulfate, filtered, and concentrated. The crude material was purified by silica gel gradient chromatography (0-100% ethyl acetate in hexanes), providing the titled compound as a peach- colored solid. LRMS m/z (Mu+Eta) 287.4 found, 287.1 required.

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 1001401-62-2

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; SKUDLAREK, Jason, W.; WO2015/95108; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 1533519-84-4, 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, 1533519-84-4, name is 4-(4-Cyclopropylnaphthalen-1-yl)-1H-1,2,4-triazole-5(4H)-thione, molecular formula is C15H13N3S, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

In a 100 ml three-necked flask equipped with a stirrer and a thermometer, 25 ml of DMF was added, the intermediate (III)2.67 g, stirred at room temperature, 1.45 g of potassium carbonate was added, and 1.61 g of methyl bromoacetate was added dropwise at 25 C,Stirring was continued for 3 hours; 50 ml of water was added and extracted with ethyl acetate 50 ml x3 to combine the organic phase,The ethyl acetate was concentrated and concentrated, and 50 ml of methanol was added thereto. The crystals were recrystallized, filtered and dried to give 3.22 g of product,Namely intermediate (IV), yield 99.5%.

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 4-(4-Cyclopropylnaphthalen-1-yl)-1H-1,2,4-triazole-5(4H)-thione, hurry up and to see.

Reference:
Patent; Chengdu Baoyu Pharmaceutical Co., Ltd.; Lei, Lang; Li, Shanwei; Xiong, Bo; (10 pag.)CN105906576; (2016); A;,
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. 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. category: Triazoles

[0774] 3H-1,2,3-triazole-5-carboxylic acid (2.5 mg, 22f.tmol) was combined with HATU (8.4 mg, 22 flillOI) in DMF(0.3 mL) and stirred for 10 minutes; Et3N (1 eq.) was addedand the mixture was stirred for 1 minute. Compound 2 (22f.tmol) was dissolved in DMF (0.5 mL) and Et3N (3.1 f.LL, 22f.tmol) was added, followed by addition of the activated acidsolution. The mixture was stirred for 30 minutes and concentratedto yieldCompound3, which was carried to the next stepwithout purification.

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 16681-70-2, and we look forward to future research findings.

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

Reference of 41253-21-8, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, 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.

in a 2000 L finished synthesis kettle, 138 kg of sodium triazole sodium salt was dissolved in 15 kg of formamide. Adding N,N-dimethylformamide mother liquor, slowly raising the temperature to 80 C at a rate of 55 C / h, and reacting at 80 C for 8 hours, Then, N,N-dimethylformamide was recovered under a vacuum of -0.085 MPa for 2.7 hours. After the completion of the collection, the mixture is transferred to a high-vacuum distillation still for fractional distillation, and the mixture is fractionated under a vacuum of 1.33 kPa and a temperature of 227 C for 8 hours, and cooled to room temperature to obtain a fluorosilazole; wherein, the formula of the specific alkylation reaction is as follows: Formula (3).

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Reference:
Patent; Shanxi Hengrun Chemical Co., Ltd.; Fan Ming; Li Cangzhen; Chen Dunguo; Chao Liumin; Wang Jianqiao; Yin Weixin; (7 pag.)CN108864165; (2018); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 74205-82-6, 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, 74205-82-6, name is (1H-1,2,4-Triazol-1-yl)methanol, molecular formula is C3H5N3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: A mixture containing 25 ml of acetonitrile, two equivalents of (3,5-dimethyl-1H-pyrazol-1-yl) methanol (compound 2), and one equivalent of N,N-Diethyl-propanediamine was stirred at room temperature for 4 days. Next, the solvent was concentrated at a reduced pressure, washed with brine and dichloromethane. The organic solution was dried with MgSO4, and the solvent was concentrated at reduced pressure to yield compound 3 as light yellow oil.

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Reference:
Article; Bendaha, Hasnae; Yu, Lisa; Touzani, Rachid; Souane, Rachid; Giaever, Guri; Nislow, Corey; Boone, Charles; El Kadiri, Sghir; Brown, Grant W.; Bellaoui, Mohammed; European Journal of Medicinal Chemistry; vol. 46; 9; (2011); p. 4117 – 4124;,
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. 252742-72-6, name is 3-(Chloromethyl)-1H-1,2,4-triazol-5(4H)-one belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 252742-72-6

Example 54 (3R*,4R*)-N-[3,5-bis(trifluoromethyl)benzyl]-3-(4-fluoro-2-methylphenyl)-N-methyl-1-[(5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl]piperidine-4-carboxamide hydrochloride To a solution of the compound (0.30 g) obtained in Example 12 and potassium carbonate (0.083 mg) in 1percent H2O-DMF (5.0 mL) was added 5-(chloromethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (0.094 g) at 0°C, and the mixture was stirred at room temperature for 14 hr. The reaction mixture was poured into water, and the product was extracted with ethyl acetate. The organic layer was washed with brine and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by preparative HPLC. 1H-NMR(CDCl3)delta: 1.70-2.00 (1H, m), 2.05-2.40 (6H, m), 2.75-3.10 (6H, m), 3.45-3.49 (2H, m), 3.65-3.80 (1H, m), 4.16 (1H, d, J=15.0Hz), 4.88 (1H, d, J=15.0Hz), 6.70-6.80 (2H, m), 7.00-7.18 (1H, m), 7.33-7.40 (2H, m), 7.70-7.82 (1H, m), 10.21 (1H, br s), 10.3-11.0 (1H, br) The obtained product was treated with 1 equivalent of 4N hydrogen chloride/ethyl acetate solution to give the title compound as a white powder (0.28 g, 78percent). MS(ESI+): 574(M-HCl+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 252742-72-6

Reference:
Patent; Takeda Pharmaceutical Company Limited; EP1705176; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 288-88-0, 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, 288-88-0, name is 1H-1,2,4-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.

Preparation of 1-phenyl-1H-[1,2,4]triazole [0220] Following General Procedure A (90 0C, 30 hours), 1/-/-[1 ,2,4]triazole (104 mg, 1.5 mmol) is coupled with iodo-benzene (112 muL, 1.0 mmol). The crude brown oil is purified by flash chromatography on silica gel (eluent: dichloromethane/hexanes = 50/50) to provide 120 mg (83 % isolated yield) of the desired product as a light yellow solid. 007/001836_ 49 -IdentificationMp: 460C.1H NMR (400 MHz, CDCI3): delta 8.49 (s, 1 H1 H8), 8.03 (s, 1H, H7), 7.58-7.61 (m, 2H, H2i6), 7.40-7.44 (t, 2H1 H3,5), 7.31-7.33 (t, 1 H, H4).13C NMR (100 MHz, CDCI3): delta 152.62 (C7), 140.91 (C8), 136.99 (C1), 129.77 (C3,5), 128.21 (C4), 120.04 (C2i6).IR (KBr) : v (cm’1) = 3105, 2924, 2852, 1600, 1514, 1416, 1359, 1278, 1223,1152, 1055, 981 , 876, 754, 681 , 671 , 503.GC/MS: rt = 15.28 min, M/Z = 145.HRMS: 146.0721 (M+H). Theoretical: 146.0718

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 288-88-0.

Reference:
Patent; CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.); Ecole Nationale Superieure de Chimie de Montpellier; WO2008/4088; (2008); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7411-23-6, 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. 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.

General procedure: 3,5-Dibromo-1,2,4-triazole (1; 658 mg, 2.9 mmol) and p-quinonemethide precursor 7 (2.9 mmol) were refluxed for 4 h in DMF (10mL). Products were isolated analogously to compound 4a.

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Reference:
Article; Osipov, Dmitry V.; Osyanin, Vitaly A.; Voskressensky, Leonid G.; Klimochkin, Yuri N.; Synthesis; vol. 49; 10; (2017); p. 2286 – 2296;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics