Category: Triazoles

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. 4928-87-4, name is 1,2,4-Triazole-3-carboxylic acid, A new synthetic method of this compound is introduced below., Product Details of 4928-87-4

A solution of 1H-1,2,4-triazole-3-carboxylic acid (0.072 g, 0.64 mmol), N- [(dimethylamino)(3H-[1 ,2,3]triazolo[4,5-b]pyridin-3-yloxy)methylene]-lambda/- methylmethanaminium hexafluorophosphate (0.243 g, 0.64 mmol) and lambda/-ethyl-lambda/- isopropylpropan-2-amine (0.205 mL, 1.17 mmol) in DMF (1.5 mL) was stirred for 15 minutes under argon. Finally, 3″-fluoro-3,2I:3l,4″-terpyridine-5′,6I-diamine (Intermediate 1 , 0.15 g, 0.53 mmol) in DMF (3 mL) was added and the mixture was stirred at room temperature for 20 hours. The solvent was evaporated and the crude mixture was purified by silica gel flash chromatography (90:10 dichloromethane/methanol) to give the title compound (0.070 g, 35% of yield). ESI/MS m/e: 377 ([M+H]+, C18H13FN8O).

The synthetic route of 4928-87-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; LABORATORIOS ALMIRALL, S.A.; WO2007/39297; (2007); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 1455-77-2, name is 3,5-Diamino-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 1455-77-2, Safety of 3,5-Diamino-1,2,4-triazole

3,5-Diamino-1,2,4-triazole was dissolved in 66percent hydrofluoric acid aqueous solution. After short heating in a water bath and slow cooling, crystals of (HL)(H2L)(HF2)2F compound (I) were found.

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-Diamino-1,2,4-triazole, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Goreshnik, Evgeny; Journal of Fluorine Chemistry; vol. 197; (2017); p. 94 – 99;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 7411-23-6,Some common heterocyclic compound, 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, molecular formula is C2HBr2N3, 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.

Intermediate 4 3,5-Dibromo-l-methyl-lH-l,2,4-triazole To a solution of 3,5-dibromo-lH-l,2,4-triazole (1.0 g, 4.41 mmol) in DMF (9 mL) sodium tert- pentoxide (0.485 g, 4.41 mmol) was added and the mixture was stirred for 10 min at rt under nitrogen atmosphere, lodomethane (0.29 mL, 4.63 mmol) was added and the mixture was stirred at 40C for 2 hours. The mixture was poured onto water and extracted twice with diisopropylether. The organic phase was washed with water (2x), brine and dried over sodium sulfate. The solvents were evaporated to give the title compound as a solid (0.83 g, 78%).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3,5-Dibromo-1H-1,2,4-triazole, its application will become more common.

Reference:
Patent; ACTURUM LIFE SCIENCE AB; BESIDSKI, Yevgeni; YNGVE, Ulrika; PAULSEN, Kim; LINDE, Christian; NORDVALL, Gunnar; MACSARI, Istvan; MALMBORG, Jonas; WO2014/195321; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione, 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 15988-11-1, Safety of 4-Phenyl-1,2,4-triazolidine-3,5-dione

General procedure: A mixture of arylaldehyde (1 mmol), malononitrile (1mmol), 4-phenylurazole (1mmol ) and NaBr (0.05 g, 0.5 mmol ) in EtOH (20 mL) was stirred with a magnetic stirrer and electrolyzed in an undivided cell equipped with a graphite anode, and an iron cathode at ambient temperature under a constant current density of 10mA/cm2( electrodes square 5 cm2), until the catalytic quantity of 0.1 F/mol of electricity was passed. After electrolysis process, the mixture was filtered, then it was rinsed twice with cold ethanol to obtained corresponding product.

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, 4-Phenyl-1,2,4-triazolidine-3,5-dione, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Khandan-Barani, Khatereh; Dodangeh, Mohammad; Kangani, Mehrnoosh; Maghsoodlou, Malek-Taher; Oriental Journal of Chemistry; vol. 32; 2; (2016); p. 1255 – 1260;,
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 288-88-0 as follows. Formula: C2H3N3

General procedure: A mixture of CuI (0.10 g, 0.50 mmol), the required azole(10 mmol), K3PO4 (4.4 g, 20 mmol), the required halide (12 mmol)and N,N0-dimethylethylenediamine (0.11 mL, 1.0 mmol) in DMF(5 mL) was degased and heated under argon at 110 C for 72 h.After filtration over celite (washing using AcOEt) and removal ofthe solvents, the crude product is purified by chromatography oversilica gel (the eluent is given in the product description). 4.3.1 1-Phenyl-1H-1,2,4-triazole (2a) Compound 2a was prepared from 1,2,4-triazole (0.69 g) and iodobenzene (1.4 mL) using the general procedure 1, and was isolated (eluent: heptane/AcOEt 7:3) in 96% yield as a yellow powder: mp 48 C (lit. 28 46 C); 1H NMR (CDCl3, 300 MHz) 7.42 (m, 1H), 7.53 (m, 2H), 7.71 (m, 2H), 8.15 (s, 1H), 8.74 (s, 1H); 13C NMR (CDCl3, 75 MHz) 120.1 (2CH), 128.3 (CH), 129.9 (2CH), 137.1 (C), 140.9 (CH), 152.7 (CH).

According to the analysis of related databases, 288-88-0, the application of this compound in the production field has become more and more popular.

Reference:
Article; Nagaradja, Elisabeth; Bentabed-Ababsa, Ghenia; Scalabrini, Mathieu; Chevallier, Floris; Philippot, Stephanie; Fontanay, Stephane; Duval, Raphael E.; Halauko, Yury S.; Ivashkevich, Oleg A.; Matulis, Vadim E.; Roisnel, Thierry; Mongin, Florence; Bioorganic and Medicinal Chemistry; vol. 23; 19; (2015); p. 6355 – 6363;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 135242-93-2, These common heterocyclic compound, 135242-93-2, name is (1-Methyl-1H-[1,2,4]triazol-3-yl)methanol, 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.

3-(2-Fluorophenyl)-6-phenyl-4H-1,2,3-triazolo[1,5-alpha]pyrimidin-5-one (77 mg, 0.25 mmol), triphenylphosphine (165 mg, 0.63 mmol) and (1-methyl-1H-1,2,4-triazol-3-yl)methanol (80 mg, 0.63 mmol) were suspended in dry tetrahydrofuran (1.5 ml).. diethyl azodicarboxylate (100 mul, 0.63 mmol) was added and a solution resulted immediately.. The reaction was stirred at room temperature for 48 hours before purification by preparative tlc (40% EtOAc/hexanes) to give a white solid which was recrystallized from ethyl acetate/hexanes to afford 3-(2-fluorophenyl)-5-(1-methyl-1H-1,2,4-triazol-3-ylmethoxy)-6-phenyl-1,2,3-triazolo[1,5-alpha]pyrimidine (49 mg, 49%) as white needles, m.p. 170-171 C.; deltaH (400 MHz, d6-DMSO) 3.84 (3H, s, NCH3), 5.57 (2H, s, OCH2), 7.35-7.41 (2H, m, ArH), 7.43-7.51 (4H, m, ArH), 7.73 (2H, dd, J=8.1 and 1.8 Hz, ArH), 8.14 (1H, td, J=7.5 and 1.8 Hz, ArH), 8.45 (1H, s, triazole CH), 9.51 (1H, s, pyrimidine CH); m/z (ES+) 402 (M+H+).

The synthetic route of 135242-93-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Merck Sharp & Dohme Ltd.; US6337331; (2002); B1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 41253-21-8, The chemical industry reduces the impact on the environment during synthesis 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, I believe this compound will play a more active role in future production and life.

(3) Synthesis of intermediate 5-(4-chlorobenzyl)-2-methoxymethoxymethyl-2-methyl-1-(1H-1,2,4-triazol-1-ylmethyl)cyclopentanol (Compound (VII), R1 =CH3, Ym =4-Cl, G=CH2OCH3, A=N)1H-1,2,4-Triazole sodium salt (1.196g, 13.1 mmol) was dissolved in NMP (7 ml), and heated to an internal temperature of 115 degrees C. To this, 5-(4-chlorobenzyl)-2-methoxymethoxymethyl-2-methylcyclopentanone (Compound (IX), R1 =CH3, Ym =4-Cl, G=CH2OCH3) (2.60 g, 8.76 mmol) was added, and washed thoroughly with NMP (1.8 ml). After the internal temperature became 115 degrees C again, sodium t-butoxide (505 mg, 5.26 mmol) and trimethylsulfoxonium bromide (2.2379 g, 1.476 mmol) were added in portions over about 3 hours. After completion of the addition, stirring was conducted at the same temperature for 75 minutes. The reaction solution was cooled to 35 degrees C, and then, to the reaction solution, water was added and extraction with ethyl acetate was conducted. The organic layer was washed with water and saturated brine, and dried over anhydrous sodium sulfate. The solvent was distilled away and the residue was subjected to silica gel column chromatography (eluent; hexane:ethyl acetate =3:1 to 0:1) for purification to obtain the desired substance. Product: 2.36 gYield: 71 %Description: Colorless viscous oil

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, Sodium 1,2,4-triazol-1-ide, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; KUREHA CORPORATION; ARAKI, Nobuyuki; YAMAZAKI, Toru; KUSANO, Nobuyuki; IMAI, Eiyu; KANNO, Hisashi; MORI, Masaru; MIYAKE, Taiji; WO2011/70771; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic 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 16681-70-2, HPLC of Formula: C3H3N3O2

1,2,3-Triazole-4-carboxylic acid (0.0274 g, 0.242 mmol), DIPEA (169 muL, 969 mumol) and HATU (92 mg, 242 mumol) were combined in DMF (0.2 mL) and stirred for 5 minutes at room temperature. This was then combined with (2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid 2-dimethylamino-ethyl ester (93 mg, 240 mumol), predissolved in DMF (0.2 mL) and DIPEA (0.5 eq.). The resulting mixture was stirred for 15 minutes and the reaction was quenched with AcOH. The product was purified by preparative HPLC and lyophilized to yield the title compound (30 mg; purity 95%). MS m/z [M+H]+ calc’d for C26H33N5O4, 480.25. found 480.4.

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:
Patent; THERAVANCE, INC.; US2012/213806; (2012); A1;,
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. 22300-52-3, name is 4,5-Dibromo-2H-1,2,3-triazole, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 22300-52-3

Step 2. tert-butyl 4-(4,5-dibromo-2H-l,2,3-triazol-2-yl)piperidine-l-carboxylate and tert-butyl 4-(4,5-dibromo-lH-l,2,3-triazol-l-yl)piperidine-l-carboxylate [0261] A mixture of 4,5-dibromo-2H-l,2,3-triazole (2.27 g, 10.08 mmol), tert-butyl 4- (methylsulfonyloxy)piperidine-l -carboxylate (2.79 g, 10.00 mmol), and cesium carbonate (9.75 g, 29.91 mmol) in N,N-dimethylformamide (50 mL) stirred overnight at 100 ¡ãC. The reaction mixture was cooled to room temperature, poured into water (100 mL) and extracted with ethyl acetate (2 x 100 mL). The combined organic layers were washed with brine (100 mL), dried over anhydrous sodium sulfate, filtered, and concentrated to afford a mixture of tert-butyl 4-(4,5-dibromo-2H- 1 ,2,3- triazol-2-yl)piperidine- 1 -carboxylate and tert-butyl 4-(4,5-dibromo- 1 H- 1 ,2,3-triazol- 1 -yl)piperidine- 1-carboxylate (4.00 g, 97percent) as a yellow oil. MS (ESI, pos. ion) m/z 411 , 409, 413 [M+H]+. Step 3. tert-butyl 4-(4-bromo-2H-l,2,3-triazol-2-yl)piperidine-l-carboxylate (Intermediate 19) and tert-butyl 4-(4-bromo-lH-l,2,3-triazol-l-yl)piperidine-l-carboxylate (Intermediate 20) [0262] n-Butyllithium (2.5 M in hexanes, 2.92 mL, 7.30 mmol) was added dropwise to a -78 ¡ãC solution containing a mixture of tert-butyl 4-(4,5-dibromo-2H- 1,2, 3-triazol-2-yl)piperi dine- 1- carboxylate and tert-butyl 4-(4,5-dibromo-lH-l,2,3-triazol-l-yl)piperidine-l -carboxylate (3.00 g, 7.35 mmol) in tetrahydrofuran (20 mL). The resulting solution stirred for 1 hour at -78 ¡ãC, and then the reaction mixture was poured into saturated aqueous ammonium chloride solution (20 mL). The aqueous phase was separated and extracted with ethyl acetate (3 x 20 mL), and the combined organic layers were dried over anhydrous sodium sulfate, filtered, and concentrated under vacuum. The residue was purified via column chromatography on silica gel (eluting with 2: 1, ethyl acetate/petroleum ether) to afford tert-butyl 4-(4-bromo-2H-l,2,3-triazol-2-yl)piperidine-l- carboxylate (0. 800 g, 33percent) as a colorless oil. MS (ESI, pos. ion) m/z 331, 333[M+H]+. [0263] tert-Butyl 4-(4-bromo-lH-l ,2,3-triazol-l-yl)piperidine-l-carboxylate (0.500g, 20percent) was also obtained as a colorless oil. MS (ESI, pos. ion) m/z 331, 333 [M+H]+.

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 22300-52-3.

Reference:
Patent; BAIR, Kenneth W.; HERBERTZ, Torsten; KAUFFMAN, Goss Stryker; KAYSER-BRICKER, Katherine J.; LUKE, George P.; MARTIN, Matthew W.; MILLAN, David S.; SCHILLER, Shawn E. R.; TALBOT, Adam C.; WO2015/74064; (2015); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

1455-77-2, name is 3,5-Diamino-1,2,4-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. Safety of 3,5-Diamino-1,2,4-triazole

Potassium tetranitropropane (200 mg, 0.67 mmol) was added to 20 mL of a mixed solvent of methanol and water (1:1 by volume), then concentrated hydrochloric acid (0.14 mL, 37%, 1.67 mmol) was added dropwise.Then, 3,5-diamino-1,2,4-triazole (293 mg, 1.34 mmol) was added and reacted at room temperature for 2 h. The reaction of the starting material was completely monitored by TLC, and a certain amount of NaHCO3 was added.Then add anhydrous magnesium sulfate to dry, spin dry, and pass the column (PE: EA = 4:1).A yellow solid 168 mg was obtained in 40% yield.

The synthetic route of 1455-77-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Chinese Academy Of Sciences Shanghai Organic Chemistry Institute; Yang Jun; Huang Haifeng; Shi Yameng; (17 pag.)CN110128344; (2019); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics