Triazoles

Application 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.

General procedure: 3,5-Dibromo-1,2,4-triazole (1; 658 mg, 2.9 mmol) or 3-chloro-1,2,4-triazole (300 mg, 2.9 mmol), o-quinone methide precursor 2 (2.9mmol), and K2CO3 (1.2 g, 8.7 mmol) were refluxed for 4 h in DMF (10mL). After completion of the reaction, the mixture was cooled, andpoured into H2O (30 mL). The precipitate formed was collected by filtration,washed with H2O, dried, and recrystallized.

The synthetic route of 3,5-Dibromo-1H-1,2,4-triazole has been constantly updated, and we look forward to future research findings.

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

Adding a certain compound to certain chemical reactions, such as: 4314-22-1, name is 2-(1H-1,2,3-Triazol-1-yl)acetic acid, 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 4314-22-1, Application In Synthesis of 2-(1H-1,2,3-Triazol-1-yl)acetic acid

Oxalyl chloride (0.95 mL, 11 mmol) was added dropwise to a suspension of 2- (1- 1, 2,3-triazolyl)) acetic acid (Step B, 1.27 g, 10 mmol) in 10 mL CH2C12 containing 0.05 mL DMF. Vigorous effervescence was observed. This mixture was stirred at room temperature for 4 h and cooled to-78C. A solution of N. O- dimethylhydroxylamine hydrochloride (1.2 g, 13 mmol) and diisopropylethyl amine (6.0 mL, 35 mmol) in 10 mL CH2C12 was added slowly over 3 min. The mixture was then allowed to warm to room temperature and stirred overnight. The reaction mixture was then diluted with ether until no additional precipitate appeared. The solid was filtered and washed with ether. The filtrate was concentrated and the residue was purified on silica gel using EtOAc as solvent to provide the title compound as amorphous solid. 1H NMR (400 MHz, CDC13) : 8 3.252 (s, 3H0, 3.812 (s, 3H), 5.379 (s, 2H), 7.753 & 7.761 (s’s, 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, 2-(1H-1,2,3-Triazol-1-yl)acetic acid, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MERCK & CO., INC.; WO2003/87037; (2003); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 16681-65-5, 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. 16681-65-5, name is 1-Methyl-1H-1,2,3-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below.

Example 93 (4-Chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(3,5-dimethylisoxazol-4-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanol To a flask containing 1-methyl-1H-1,2,3-triazole (200 mg, 2.41 mmol) was added THF (17 mL) and the solution was cooled to -43 C. using a CH3CN-CO2 bath. n-BuLi, (2.5 M in hexanes, 0.88 mL, 2.19 mmol) was then added dropwise to provide a white suspension. The suspension was stirred at -40 C. for 20 minutes, then a homogeneous solution of (4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(3,5-dimethylisoxazol-4-yl)methanone (500 mg, 1.05 mmol, Intermediate 63: step b) in 2 mL THF was introduced. A dark brownish solution immediately resulted. The reaction mixture was allowed to warm gradually to 0 C. over 25 minutes, then was quenched with aqueous NH4Cl solution. The aqueous portion was extracted with EtOAc (3*35 mL) and the combined organics were washed with brine, dried over MgSO4, filtered and concentrated to dryness. The residue was purified by FCC (20% EtOAc-hexanes increasing to 50% EtOAc) to provide the title compound as a white solid. 1H NMR (500 MHz, CDCl3) delta 8.08 (d, J=2.1 Hz, 1H), 7.85 (d, J=8.7 Hz, 1H), 7.61-7.46 (m, 3H), 7.39 (d, J=8.1 Hz, 2H), 6.94 (s, 1H), 4.81 (s, 1H), 4.32 (s, 2H), 4.09 (s, 3H), 3.98 (s, 3H), 1.95 (s, 3H), 1.82 (s, 3H); MS (ESI): mass calc. for Chemical Formula: C27H23ClF3N5O3; Exact Mass: 557.1. m/z found, 557.9 (M+H).

The synthetic route of 1-Methyl-1H-1,2,3-triazole has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Janssen Pharmaceutica NV; Leonard, Kristi A.; Barbay, Kent; Edwards, James P.; Kreutter, Kevin D.; Kummer, David A.; Maharoof, Umar; Nishimura, Rachel; Urbanski, Maud; Venkatesan, Hariharan; Wang, Aihua; Wolin, Ronald L.; Woods, Craig R.; Fourie, Anne; Xue, Xiaohua; Cummings, Maxwell D.; Jones, William Moore; Goldberg, Steven; US2015/105366; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 4923-01-7, 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. 4923-01-7, name is 5-Methyl-4H-1,2,4-triazol-3-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below.

General procedure: Method I. A mixture of Py (4.4 ml) and AcOH (3.0 ml) was stirred and treated by the addition of 5-aminoazole1a-h (0.01 mol) and (2E)-(3-morpholin-4-yl)-acrylonitrile (2) (1.38 g, 0.01 mol). The obtained mixture was refluxed at 150C for 5 h. After refluxing, the mixture was cooled. The precipitate that formed was filtered off, washed with a small amount of EtOH, and dried. Method II. A solution (or suspension) of the appropriate aminoazole 1a-h (0.01 mol) in solvent (15 ml) (EtOH in the case of compound 3a, dioxane in the case of compounds 3b-h) was stirred at 50C and treated by adding 3,3-diethoxypropionitrile (4) (1.5 ml, 0.01 mol), then 36% HCl solution (0.86 ml, 0.01 mol). The reaction mixture was refluxed for 2.5-3 h, the suspension (or solution) was cooled to room temperature, and the target product was isolated by the method indicated for each particular compound.

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, 5-Methyl-4H-1,2,4-triazol-3-amine, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Gazizov, Denis A.; Fedotov, Victor V.; Gorbunov, Evgeny B.; Ulomskiy, Evgeny N.; Yeltsov, Oleg S.; Rusinov, Gennady L.; Rusinov, Vladimir L.; Chemistry of Heterocyclic Compounds; vol. 55; 6; (2019); p. 573 – 577; Khim. Geterotsikl. Soedin.; vol. 55; 6; (2019); p. 573 – 577,5;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 16681-70-2, 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. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, This compound has unique chemical properties. The synthetic route is as follows.

To a stirred solution of 11-3 (0.2g, 0.36mMol), HOBT (0.05g, 0.4mMol), and IH-1, 2,3- triazole-4-carboxylic acid (0.05g, 0.4mMol) in anhydrous DMF (2mL) was added DIEA (0.18mL, 1. ImMoI) followed by EDC (0.08g, 0.4mMol). The solution was heated in the microwave reactor for 30 minutes at 800C. Solution was then treated with 0.5mL of acetic acid and was heated to 800C in the microwave reactor for lOmin. Upon cooling to room temperature, the solution was passed through a EPO syringe filter and purified on a C18 reverse phase HPLC to give 11-4 as a solid. Mass (M+l) calculated: 632.2742 observed: 632.274

The chemical industry reduces the impact on the environment during synthesis 1H-[1,2,3]Triazole-4-carboxylic acid. I believe this compound will play a more active role in future production and life.

Reference:
Patent; MERCK & CO., INC.; WO2006/135627; (2006); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 16681-70-2,Some common heterocyclic compound, 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, molecular formula is C3H3N3O2, 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.

0867] lH-1,2,3-triazole-5-carboxylic acid (15.3 mg, 135f.tmol) andHATU (51.4mg, 135 fJ.mol)weremixedinDMF (4mL) and stirred at room temperature for 15 minutes. (2S,4S)-4-Amino-2-(1-amino-l-methylethyl)-5-( 5′-chloro-2′-fluorobiphenyl-4-yl)pentanoic acid ethyl ester (50 mg, 123 f.tmol)and DIPEA (64 f.LL, 369 f.tmol) were added. The resultingsolution was stirred at room temperature for 15 minutes, atwhich point LC/MS showed reaction completion. The solventwas removed in vacuo and the crude residue was diluted inEtOH (4 mL). A solution of IN LiOH (983 f.LL, 983 f.tmol) inwater was then added. The resulting solution was stirred at60 C. for 2 days, at which point LC/MS showed reactioncompletion. The solvent was removed in vacuo and the cruderesidue was purified by preparative HPLC to yield the titlecompound (4.2mg) as a TFA salt. MS rn/z [M+Ht calc’dforC23H25ClFN50 3 , 474.16. found 474.2.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1H-[1,2,3]Triazole-4-carboxylic acid, its application will become more common.

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

Synthetic Route of 7411-23-6, These common heterocyclic compound, 7411-23-6, name is 3,5-Dibromo-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.

Two hatches of phenylboronic acid (13 5 g, 111 mmol, 1.0 eq), 3,5-dibromo~lH-i,2,4~ triazoe (25 g, 110 mmol, 1.0 eq), Cu(QAc)2 (30 g, 165 mmol, 1.5 eq), pyridine (26.5 g, 335 mmol, 27 mL, 3.0 eq) and 4A MS (5 g, 22.0 mmol) in toluene (250 mJL) was degassed and purged with O2 for three times, and then the mixture was stirred at 80 C for 16 h under O? atmosphere (15 psi). After completion of the reaction, the two batches of reaction mixture were mixed and filtered, then concentrated under reduced pressure to give a residue. The residue was purified by flash silica gel chromatography (ISCO; 200 g SepaFlash1 Silica Flash Column, eluent of 0-10% ethyl acetate/petroleum ether gradient 80 mL/min) to give 36 g crude product with 67% purity. 2 g was used for next step directly. The remaining 34 g was diluted with DCM (200 mL) and washed with saturated aqueous NaHC03 (100 mL c 1), brine (100 mL), dried over anhydrous Na2S04, filtered and concentrated under reduced pressure to give 3, 5-dibromo-l -phenyl-1 ,2,4-triazole (29.2 g, 37% yield, 85% purity) as a light yellow solid. i.C-YlS (ESI): m/z (M+H) 303.9.

The synthetic route of 7411-23-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AN2H DISCOVERY LIMITED; JOHNSTON, Jennifer; FATHEREE, Paul Ross; (225 pag.)WO2019/109099; (2019); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 217448-86-7, 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. 217448-86-7, name is Methyl 1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below.

Example 4 Preparation of Rufinamide (I). Mixture of 10 g (0.039 mol) of methyl-1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate, and 150 ml of methanolic ammonia solution was stirred at ambient temperature. The reaction mixture was heated to 45 C. for 22 hours. Cooled to ambient temperature. Solid was filtered, washed with methanol and dried under reduced pressure. Yield 69 g (87%); HPLC purity: 99.83%.

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, Methyl 1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; LUPIN LIMITED; Siyan, Rajinder Singh; Aher, Yogesh Subhas; Bhise, Nandu Baban; Singh, Girij Pal; Gohel, Sunilkumar Vinubhai; US2014/357871; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

60166-43-0, name is 1,4-Dimethyl-1H-1,2,3-triazole, 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. Computed Properties of C4H7N3

Under the protection of N2, a tetrahydrofuran (5.0 mL) solution of 1,4-dimethyl-1,2,3-triazole (0.56 g, 5.77 mol) was added dropwise to a tetrahydrofuran (5.0 mL) solution of butyllithium (2.77mL, 6.27 mol, 2.4 mol/L n-hexane solution) at -78C, and the resulting mixture was kept at -70C and reacted for 1h. Then chlorotributyltin (1.71 mL, 6.34 mol) was added. The system became clear, and was gradually warmed to room temperature. Water and ethyl acetate were added to the reaction flask, stirred for 15 min, and filtered through Celite filler, and the Celite filler was rinsed with ethyl acetate. After the filtrate was layered, the aqueous phase was extracted with ethyl acetate once. The ethyl acetate phases were combined, washed with a saturated sodium chloride aqueous solution, dried with anhydrous sodium sulfate, and concentrated to obtain a black residue. The residue was purified by silica gel column chromatography eluting with ethyl acetate/petroleum ether (5:1) to obtain a luminous yellow oily product (1.40g, 63%). 1H NMR (400 MHz, CDCl3) delta 4.03 (s, 3H), 2.35 (s, 3H), 1.45-1.54 (m, 6H), 1.28-1.40 (m, 6H), 1.16-1.21 (m, 6H), 0.91 (t, 9H).

The synthetic route of 60166-43-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Chia Tai Tianqing Pharmaceutical Group Co.,Ltd; Centaurus BioPharma Co., Ltd.; Lianyungang Runzhong Pharmaceutical Co., Ltd.; LI, Jijun; WU, Wei; ZHU, Yan; WANG, Huting; ZHAO, Lijia; HE, Weinan; SUN, Yinghui; PENG, Yong; HAN, Yongxin; (108 pag.)EP3412669; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 1455-77-2, 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. 1455-77-2, name is 3,5-Diamino-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows.

It has been reported that the salts of 1,2,4-triazole and 3-amino-1,2,4-triazole could be obtained via an acid-base neutralization [29, 30]. Likewise, the LiDAtz with two amino groups on the triazole ring was prepared by the neutralization from equimolar 3,5-diamino-1H-1,2,4-triazole (DAtzH) and LiOH. Briefly, equimolar DAtzH and LiOH were added into deionized water separately, mixed and kept reacting and stirring at room temperature for 24 h, and the synthetic process is listed in Scheme 1. The product, a yellow powder, was obtained with 96.8% yield after evaporation of water and then drying at 120 C under vacuum for 24 h. 13C Nuclear magnetic resonance (NMR, 400 MHz, D2O): 161.73 ppm. Fourier transform infrared (FT-IR, KBr, cm-1) spectra: 3374, 3417 (w, nuNH2), 3335 (m, nuH2O), 1608 (m, deltaNH2), 1558 (m, nuC-N), 1475 (s, nuC-N), 1382 (m, nuC-N-C), 1070 (m, nuC-N), 688, 773 (w, deltaN-C-N). Elemental analyses (EA; C2H4N5Li, 105.06): found: C 13.22, H 2.20, N 78.42%; calculated: C 13.20, H 2.22, N 76.96%. High-resolution mass spectra [HRMS-electrospray ionization (ESI)]: m/z: [M+H+] calcd. for C2H5LiN5: 106.0700, found: 106.0700.

The chemical industry reduces the impact on the environment during synthesis 3,5-Diamino-1,2,4-triazole. I believe this compound will play a more active role in future production and life.

Reference:
Article; Fei, Yuqing; Liu, Shimin; Lu, Liujin; He, Yude; Deng, Youquan; Research on Chemical Intermediates; vol. 44; 12; (2018); p. 7187 – 7204;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics