Category: Triazoles

Reference of 7411-23-6, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below.

First, 43.7 g of 3,5-dibromo-1H-1,2,4-triazole is introduced into 200 mL of tetrahydrofuran (THF), the resultant mixture is agitated, and 40.4 g of 2-chloro-2,4-difluoroacetophenone is further introduced thereto. Next, 36.3g of potassium carbonate is introduced to the reaction mixture and the resultant mixture is agitated for 7 hours at room temperature. After the completion of the reaction, the reaction mixture is filtered, washed with 100 mL of tetrahydrofuran (THF), andconcentrated at room temperature. Then, 437 mL of purified water is introduced so that the crystals are slurried, followed by filtering. The filtered crystals are reslurried in 175 mL of isopropanol and filtered again. The crystals are washed with 44 mL of isopropanol and dried with hot air at 50C to obtain 63.8 g of the title compound as a white solid (yield 87%, purity 99.2%, HPLC, detected at a wavelength of 256 nm, 18C 4.6 X 250 mm, mobile phase 60% ACN, flow rate 1 mL/min). [96] 1H-NMR (200MHz, CDCl3) delta (ppm) : 8.11~8.03(1H), 7.11-6.96(2H), 5.51(2H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3,5-Dibromo-1H-1,2,4-triazole, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; DONGKOOK PHARMACEUTICAL CO., LTD.; KWON, Hyuk Chul; RHO, Man Dong; CHA, Kyung Hoi; WO2011/96697; (2011); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows., category: Triazoles

2,2′-Bipyridine (3.12, 20 mmol), copper acetate (3.63 g, 20 mmol) and sodium carbonate (4.24 g, 40 mmol) was added to a solution of 3,5-dibromo-lH-l,2,4-triazole (4.54 g, 20 mmol) and cyclopropyl boronic acid (3.44 g, 40 mol) in DCE (150 ml). The r.m. was heated at 70 C for 16 h and was then cooled to r.t. and washed with a sat. aq. solution of ammonium chloride. The combined organic extracts were washed with brine and dried (MgS04). Filtration and concentration under reduced pressure gave a residue which was purified by flash column chromatography over silica gel (eluent:Heptane/EtOAc from 100/0 to 50/50). The product fractions were collected and concentrated in vacuo, yielding 1 g of a 70/30 mixture of intermediate 69 andintermediate 70 (21 %) which was used as such in the next reaction step.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 7411-23-6.

Reference:
Patent; ORTHO-MCNEIL-JANSSEN PHARMACEUTICALS, INC; VAN BRANDT, Sven, Franciscus, Anna; DE CLEYN, Michel, Anna, Jozef; GIJSEN, Henricus, Jacobus, Maria; BERTHELOT, Didier, Jean-Claude; SURKYN, Michel; WO2011/86099; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 4928-87-4 as follows. name: 1,2,4-Triazole-3-carboxylic acid

To a reaction of 1/7-1, 2, 4-triazole-3 -carboxylic acid (226 mg, 2.0 mmol) and (2,3- dimethoxybenzyl)amine (0.31 mL, 2.1 mmol) in dry DMF (10 mL) was added 1- hydroxybenzotriazole monohydrate (337 mg, 2.2 mmol) and EDC (N-(3- Dimethylaminopropyl)-N’-ethylcarbodiimide) (422 mg, 2.2 mmol) followed by N- methylmorpholine (0.88 mL, 8.0 mmol via syringe). The mixture was stirred at room temperature under nitrogen and the solids were gradually dissolved. The contents were stirred at room temperature for 24 h, and then slowly diluted into ice cold water and extracted with DCM (2 x 50 mL). The DCM phase was washed with ice cold water (2 x 100 mL). The DCM phase was dried over anhydrous Na2S04, filtered and concentrated under reduced pressure and chromatographed on silica gel using EtOAc and Hexanes (9: 1) as eluents to get the desired amide 3 (104.9 mg, 20% yield) as a white solid. -NMEI (400 MHz, DMSO-de): <514.67 (br s, 1H), 8.94 (br s, 1H), 8.49 (br s, 1H), 7.03-6.99 (m, 1H), 6.99-6.94 (m, 1H), 6.85-6.82 (m, 1H), 4.48 (d, J= 6.4 Hz, 2H), 3.80 (s, 3H), 3.78 (s, 3H) ppm. MH+ = 233.2 m/z. According to the analysis of related databases, 4928-87-4, the application of this compound in the production field has become more and more popular. Reference:
Patent; THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE; NATIONAL JEWISH HEALTH; WEMPE, Michael Fitzpatrick; VAZQUEZ-TORRES, Andres; DAI, Shaodong; (72 pag.)WO2020/41556; (2020); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

162848-16-0, name is 4-[1,2,4]Triazol-1-yl-benzoic acid, belongs to Triazoles compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. SDS of cas: 162848-16-0

A mixture of MIICl2 (0.25mmol) (M=Zn(1), Cd(2)), ligand Hcpt (0.5mmol), and DMF (10mL) was heated at room temperature to 150C for three days in a 25mL Teflonlined stainless-steel autoclave and was then cooled to room temperature at 5C/h-1 to obtain corresponding colorless block crystals 1-2 (yield: 53% for 1 and 49% for 2 based on MII). Anal.Calcd for 1 C18H12N6O4Zn (441.71): C, 48.90; H, 2.72; N, 19.02%. Found: C, 48.86; H, 2.75; N, 19.07%. IR frequencies (KBr, cm-1): 3443 (w), 3131 (w), 1682 (s), 1608 (s), 1568 (m), 1542 (m), 1504 (m), 1492 (m), 1462 (w), 1427 (w), 1384 (s), 1297 (s), 1219 (m), 1142 (s), 1045 (s), 1068 (m), 1002 (w), 975 (m), 955 (m), 860 (m), 809 (w), 771 (m), 690 (w), 670 (m), 638 (w), 559 (w), 538 (w), 516 (w). Anal.Calcd for 2 C24H26O6N8Cd (634.94): C, 45.36; H, 4.09; N, 17.64%. Found: C, 45.35; H, 4.11; N, 17.69%. IR frequencies (KBr, cm-1): 3425(mb), 2918(w), 1683(m), 1650(m), 1607(s), 1523(s), 1476(m), 1412(m), 1385(s), 1265(s), 1203(m), 1181(w), 1062(w), 858(m), 784(m), 722(w), 653(w), 619(w), 535(w), 524(w).

The synthetic route of 162848-16-0 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Li, Teng; Liu, Xiang; Huang, Zhuang-Peng; Lin, Qiang; Lin, Chu-Ling; Zhan, Qing-Guang; Xu, Xiang-Dong; Cai, Yue-Peng; Inorganic Chemistry Communications; vol. 39; (2014); p. 70 – 74;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 815588-93-3,Some common heterocyclic compound, 815588-93-3, name is 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid, molecular formula is C4H5N3O2, 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 ieri-butyl 6-amino-2-(2-(difluoromethyl)phenyl)-1 H-indole-1 -carboxylate (int 8) (358 mg, 1.00 mmol), 1 -methyl-1 H-1 ,2,4-triazole-5-carboxylic acid (454 mg, 2.00 mmol), HATU (570 mg, 1.50 mmol) and TEA (202 mg, 2.00 mmol) in DMF (4 m_) was stirred at rt overnight. Water (10 ml_) was added and the mixture was extracted with EtOAc (2 x 15 ml_). The combined organic layers were dried over MgS04, filtered and concentrated to dryness. The residue was purified by silica gel chromatography (gradient 30- 00 percent EtOAc in PE) to give the title compound as a yellow oil.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-Methyl-1H-1,2,4-triazole-5-carboxylic acid, its application will become more common.

Reference:
Patent; PHENEX PHARMACEUTICALS AG; DEUSCHLE, UIrich; STEENECK, Christoph; ALBERS, Michael; HOFFMANN, Thomas; (62 pag.)WO2018/153893; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 61-82-5, name is 1H-1,2,4-Triazol-5-amine, belongs to Triazoles compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 61-82-5, HPLC of Formula: C2H4N4

A mixture of aldehyde (1 mmol), dimedone (1 mmol), 3-amino-1,2,4-triazole (1 mmol), and [C4(H-DABCO)2][HSO4]4 (16 mg) washeated in an oil bath (90 C) under solvent-free conditions. Aftercompletion of the reaction, as identified by TLC, using n-hexane:EtOAc (7:3) as the eluent, 10 mL of water was added and stirredfor 10 min. The catalyst was dissolved in water and the solid wasfiltered off and washed with warm EtOH, to obtain the pure targetmolecule.

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Article; Safari, Niloufar; Shirini, Farhad; Tajik, Hassan; Journal of Molecular Structure; vol. 1201; (2020);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 162848-16-0, name is 4-[1,2,4]Triazol-1-yl-benzoic acid, A new synthetic method of this compound is introduced below., category: Triazoles

General procedure: The ligand 4-Htba (0.1 mmol) was dissolved in DMF (5 mL), to which a DMF solution (5 mL) of Cd(NO3)2¡¤4H2O (0.1 mmol) was added with stirring for ca. 30 min. Then, the solution was sealed in a Teflon-linear autoclave and heated at 100 C for 3 days, after cooling to room temperature at a rate of 10 C/h, colorless blockc rystals of complex 1 were obtained in 58% yield (20.0 mg). Anal. Calcd for C10H7CdN3O4: C, 34.75; H, 2.04; N, 12.16%. Found: C, 34.71; H, 2.06; N, 12.14%. IR (KBr, cm-1): 1606vs, 1575vs, 1542vs, 1449m, 1410vs, 1368s, 1337s, 1303s, 1281s, 1229m, 1149m, 1051m, 994w, 975m, 873w, 854m, 812w, 781m, 724w, 698w, 669w, 646w, 541w. The same synthetic procedure as that for 1 was used except that Cd(NO3)2¡¤4H2O was replaced by Pb(NO3)2 (0.1 mmol), forming colorless block crystals of 2 in 54% yield (23.8 mg). Anal. Calcd for C10H7PbN3O4: C, 27.27; H, 1.60; N, 9.54%. Found: C, 27.22; H, 1.64; N, 9.49%. IR (KBr, cm-1): 1603s, 1557vs, 1383vs, 1340s, 1305m, 1277m, 1222m, 1143w, 1050w, 964w, 848w, 782m, 719w, 696w, 666w, 641w, 541w.

The synthetic route of 162848-16-0 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Mu, Yu-Hai; Ge, Zhi-Wei; Li, Cheng-Peng; Inorganic Chemistry Communications; vol. 48; (2014); p. 94 – 98;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, belongs to Triazoles compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 7411-23-6, SDS of cas: 7411-23-6

a) 3 ,5-Dibromo- 1 -ethyl- 1 H-[ 1 ,2,4]triazole 3,5-Dibromo-lH-l,2,4-triazole (2.5 g, 11.0 mmol, Eq: 1.00) was dissolved in dimethyl- formamide (31.8 ml) and sodium hydride (529 mg, 60% dispersion in mineral oil, 13.2 mmol, Eq: 1.2) was added slowly. Ethyl methanesulfonate (2.74 g, 2.27 ml, 22.0 mmol, Eq: 2) was added to the reaction and the mixture was heated in a microwave oven for 60 minutes at 100 C. The mixture was diluted with water and extracted 3x with ethyl acetate. The organic layer was dried over magnesium sulfate, filtered and the solvent was evaporated to give 3,5-dibromo-l-ethyl-lH- [l,2,4]triazole (2.54 g, 90.4%) as a white powder. MS: m/z= 255.9 (M+H+)

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3,5-Dibromo-1H-1,2,4-triazole, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; FLOHR, Alexander; GROEBKE ZBINDEN, Katrin; KUHN, Bernd; LERNER, Christian; RUDOLPH, Markus; SCHAFFHAUSER, Herve; WO2013/178572; (2013); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 28938-17-2 as follows. Computed Properties of C3H3Br2N3

Example 21 1.20 g (5.0 mmol) of 2-methyl-4,5-dibromo-2H-1,2,3-triazole was dissolved in 10 ml of tetrahydrofuran, cooled to -20?0C, 2.74 ml (5.18 mmol) of 2.0M isopropylmagnesium tetrahydrofuran solution was added dropwise slowly in 30 minutes. Added dropwise was completed, continued to stir for 30?60 minutes. 1.26 g (5.0 mmol) of solid iodine was added, continued to react for 30 minutes. Reaction liquid was added by 20 ml of saturated ammonium chloride aqueous solution, extracted by using 30 ml of ethyl acetate, dried by anhydrous sodium sulfate, concentrated to dry under reduced pressure, the residual solid was added by 10 ml of isopropanol/water (5/1), heated to reflux for 1 hour, cooled to 0?10C, continued to be stirred for 1 hour, filtered, vacuum dried under a temperature <40C. 1.16 g of 2-methyl-4-bromo-5-iodo-2H-1,2,3-triazole solid was obtained, the yield was 81%. 1H NMR (CDCl3, 400 MHz): delta 4.20 (s, 3H); 13C NMR (CDCl3, 400 MHz): delta 130.4, 94.6, 43.0. According to the analysis of related databases, 28938-17-2, the application of this compound in the production field has become more and more popular. Reference:
Patent; ABA Chemicals Corporation; JIANG, Yueheng; QUE, Limin; CAI, Tong; QIN, Dongguang; EP2889292; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 7170-01-6, A common heterocyclic compound, 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, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

a) 1-(2-Fluoro-4-nitro-phenyl)-3-methyl-1H-[1,2,4]triazole; 3,4-Difluoronitrobenzene (514 mg, 3.23 mmol), 3-methyl-1H-1,2,4-triazole (325 mg, 3.72 mmol) and di-potassium hydrogen phosphate trihydrate (1.49 g, 6.46 mmol) in 1 dimethyl sulfoxide (5 mL) were stirred for 6 hours at 70 C. The mixture was concentrated in vacuo; the residue was diluted with water and extracted three times with ethyl acetate. The combined organic layers were washed four times with water, twice with brine, dried over magnesium sulfate and evaporated. Column chromatography (30 g silica, heptane/ethyl acetate 1:1 v/v) afforded the title compound (261 mg, 36%) as white crystals MS ISP (m/e): 223.3[(M+H)+]. 1H NMR (CDCl3, 300 MHz): delta (ppm)=8.72 (d, 1H), 8.20 (m, 3H), 2.52 (s, 3H). Mp 105-107 C.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Baumann, Karlheinz; Flohr, Alexander; Goetschi, Erwin; Jacobsen, Helmut; Jolidon, Synese; Luebbers, Thomas; US2009/215759; (2009); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics