Day: January 20, 2021

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. 162848-16-0, name is 4-[1,2,4]Triazol-1-yl-benzoic acid, This compound has unique chemical properties. The synthetic route is as follows., SDS of cas: 162848-16-0

A mixture of Co(NO3)2¡¤6H2O (29 mg, 0.1 mmol) and 4-Htba(19mg, 0.1mmol) in 8 mL mixed solvent (DMF 2 mL, CH3OH4 mL, H2O 2 mL) was firstly stirred at room temperature for 15 min; then, the mixed solution was sealed into a pressure glassbottle (15 mL) equipped with a Teflon lid and heated at 100 C for 48 h. Pink block crystals of complex 4 were obtained (yield73%, based on ligand). Anal. Calcd. (%) for C18H20N6O8Co: C,42.61; H, 3.97; N, 16.57. Found (%): C, 42.58; H, 3.92; N,16.50. IR (KBr, cm-1): 3400(br, m), 3117(m), 1531(s),1387(s), 1150(m), 978(m), 785(m), 673(w), 509(w).

According to the analysis of related databases, 162848-16-0, the application of this compound in the production field has become more and more popular.

Reference:
Article; Wang, Da-Wei; Wang, Tao; Du, Lin; Zhou, Jie; Yan, Tong; Zhao, Qi-Hua; Structural Chemistry; vol. 29; 4; (2018); p. 1013 – 1023;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 16681-67-7, These common heterocyclic compound, 16681-67-7, name is 4-Bromo-2-methyl-2H-1,2,3-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.

To a microwave tube equipped with a stifling bar, (R)-4-((R)-1-((1-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one (120 mg, 0.292 mmol), 4-bromo-2-methyl-2H-1,2,3-triazole (94.5 mg, 0.584 mmol), 1,2-dimethoxyethane (3 mL), 1 N Na2CO3 aqueous solution (0.96 mL, 0.96 mmol) were added, the mixture was bubbled N2 for 5 minutes before Pd(PPh3)4 (33.7 mg, 0.029 mmol) was added. The tube was sealed and heated in microwave at 140 C. for 15 minutes. DCM (200 mL) was added and the resulting mixture was washed with saturated NaHCO3 aqueous solution (20 mL¡Á4), brine (20 mL¡Á1), dried over anhydrous Na2SO4, filtered, removed solvents in vacuo. The resulting residue was passed a ISCO silica gel column (MeOH:DCM=5:95) to give off-white solids, 81.7 mg (yield 76.4%).

Statistics shows that 4-Bromo-2-methyl-2H-1,2,3-triazole is playing an increasingly important role. we look forward to future research findings about 16681-67-7.

Reference:
Patent; Gilead Scientific Systems, Inc.; Cory, Kevin S; Doo, Jimin; Farrand, Julie; Guerrero, Juan A; Katana, Ashley A; Cato, Daryl; Laisaweed, Scott I; Lee, Jiayao; Lingco, John O; Nicolaus, May; Notte, Gregory; Phyen, Hyeoung-Jung; Sangy, Michael; Sumit, Arun C; Adam J, Surayyah; Stephens, Cork L; Venkatraman, Chandrasekar; Watkins, William J; Yang, Jong Yu; Jabloki, Jeff; Jifel, Shiela; Ro, Jennifer; Lee, Sung H; Jao, Chung Dong; Grove, Jeffery; Su, Jianjun; Blomgren, Peter; Mitchell, Scott A; Shyung, Jin Ming; Chandrasekar, Jayaraman; (460 pag.)KR2016/37198; (2016); A;,
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. 956317-36-5, name is 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid, A new synthetic method of this compound is introduced below., category: Triazoles

5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid (11.94 gm, 0.058 moles) and DCM (15 ml) were charged in round bottom flask at room temperature. The reaction mixture was cooled to 0-5 C. and oxalyl chloride (5.07 mL, 0.058 moles) was added under inert atmosphere followed by the addition of DMF (1.18 mL, 0.0152 moles). The temperature of reaction mixture was raised to RT and stirred for 2 h. (R)-1-benzyl-5-methyl-1,4-diazepane (12 g, 0.058 moles, formula VII. DBT salt was neutralized with NaOH to obtain free base), triethyl amine (16.57 mL, 0.1176 moles) and DCM (500 mL) were taken in another RBF at 0-5 C. and stirred at room temperature for 2 h. The resulting mixture was slowly added to mixture containing triazole at 0-5 C. and stirred. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was diluted with water and extracted with DCM (2*7.5 mL). The combined organic layer was dried over Na2SO4 and concentrated under reduced pressure to give crude material. The obtained crude material was purified by column chromatography using silica gel (60-120 mesh), 2% MeOH-DCM as an eluent to give (R)-(4-benzyl-7-methyl-1,4-diazepan-1-yl)(5-methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone (Formula IX, 18 g) as a brown color liquid. The obtained crude compound was used for the next step without any further purification.

The synthetic route of 956317-36-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; DR. REDDY’S LABORATORIES LIMTED; IQBAL, Javed; DAHANUKAR, Vilas Hareshwar; ORUGANTI, Srinivas; KANDAGATLA, Bhaskar; (23 pag.)US2016/168138; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 4928-87-4, A common heterocyclic compound, 4928-87-4, name is 1,2,4-Triazole-3-carboxylic acid, molecular formula is C3H3N3O2, 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.

Compound 1 was prepared using the branched tube method [11]: 1H-1,2,4-triazole-3-carboxylic acid (0.117 g, 1 mmol), potassium iodide (0.166 g, 1 mmol) and lead(II) nitrate (0.331 g, 1 mmol) were placed in the arm to be heated. Water was carefully added to fill both arms, and then the arm to be heated was placed in a bath at 60 C. After 10 days, yellow crystals were deposited in the cooler arm which were filtered off, washed with water and air dried. (0.28 g, yield 63%), m.p. > 300 C. Anal. Calc. for C3H2IN3O2Pb: C, 8.07; H, 0.45; N, 9.41. Found: C, 8.15; H, 0.43; N, 9.63%. IR (cm-1) selected bands: 810(m), 981(m), 1280(m), 1453(vs), 1622(vs), 3102(br) and 3444(br).

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:
Article; Safarifard, Vahid; Morsali, Ali; Inorganica Chimica Acta; vol. 398; (2013); p. 151 – 157;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 4928-88-5, 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. 4928-88-5, name is Methyl 1H-1,2,4-triazole-3-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.

EXAMPLE 16 A mixture of methyl 1,2,4-triazole-3-carboxylate (1.27 g, 0.01 mole) and beta-D-ribofuranosyl-1,2,3,5-tetraacetate (3.18 g, 0.01 mole) was melted and then 0.076 g of p-toluenesulfonic acid was added thereto. The reaction mixture was reacted for 3 hours, while maintaining the temperature of the reaction mixture at 95+-5¡ã C. And then, the reaction mixture was crystallized with 20 ml of isobutanol to give 2.92 g of 1-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)-1,2,4-triazole-3-carboxylic acid methyl ester (yield: 92percent).

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

Reference:
Patent; Lee, Tai-Au; Park, Nam-Jin; Khoo, Ja-Heouk; Lee, Byung-Cheol; US2003/120064; (2003); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products 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.

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]+.

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

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

Reference of 138624-97-2, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 138624-97-2 name is 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

A mixture of (3R)-3-amino- 1, 8-dimethyl-4,5-dihydro-3H-pyrido [3,4-b] azepine-2,7-dione (15 mg, 0.07 mmol), 1-hydroxybenzotriazole (11 mg, 0.08 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimidehydrochloride (16 mg, 0.08 mmol) and 1 -benzyl1,2,4-triazole-3-carboxylic acid (17 mg, 0.08 mmol) in N,N-dimethylformamide (3 mL) was stirred at 25 C for 2 h. The mixture was concentrated under reduced pressure and the residue was purified by RP-HPLC (acetonitrile 20-50% / 0.05% ammonium hydroxide in water)afford arbitrarily assigned (R)- 1 -benzyl-N-( 1, 8-dimethyl-2,7-dioxo-2,3 ,4,5 ,7 ,8-hexahydro-1 H-pyrido [3,4-b] azepin-3-yl)- 1 H-i ,2,4-triazole-3-carboxamide (21.2 mg, 76%) as a white solid. ?H NMR (400 MHz, CD3OD) 8.56 (s, 1H), 7.87 (s, 1H), 7.37 – 7.33 (m, 5H), 6.49 (s, 1H), 5.47 (s, 2H), 4.71 – 4.65 (m, 1H), 3.59 (s, 3H), 3.33 (s, 3H), 2.74 – 2.69 (m, 2H), 2.45 – 2.38 (m, 1H), 2.13 – 2.08 (m, 1H). LCMS RT = 0.702mi m/z = 407.1 [M + H]. LCMS (5 to 95% acetonitrile in water + 0.1% formic acid over1.5 mins) retention time 0.702 mi ESI+ found [M+H] = 407.1.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid, and friends who are interested can also refer to it.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; GENENTECH, INC.; PATEL, Snahel; (105 pag.)WO2018/73193; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 27808-16-8,Some common heterocyclic compound, 27808-16-8, name is 4-Methyl-1H-1,2,3-triazole, molecular formula is C3H5N3, 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-bromo-6-methylpyridine-2-carboxylic acid (408 mg, 1 .89 mmol) was dissolved in a mixture of 1 ,4-Dioxane (2ml_)Water (0.200ml_), then 4-Methyl-1 H-1 ,2,3-triazole (236 mg, 2.84 mmol), cesium carbonate (1 .24 g, 3.78 mmol), Cul (18 mg, 0.09 mmol) and (1 R,2R)-N 1 , N2-dimethylcyclohexane-1 ,2-diamine (54 mg, 0.38 mmol) were added. The mixture was stirred at 120 C for 2 hrs. Reaction mixture was cooled to RT and then water and MTBE were added. After vigorously stirring, the layers were separated and the aqueous one was acidified to pH 2 with HCI 6N. The acidic solution was concentrated and purified by RP on C18 column [eluting H20 (0.1 % HCOOH)/CH3CN from 100:0 to 60:40] affording 6-methyl-3-(4-methyl-2H-1 ,2,3-triazol-2-yl)pyridine-2-carboxylic acid (p95, 274 mg, y= 66% yield) and 6-methyl-3-(4-methyl-1 H-1 ,2,3-triazol-1 -yl)pyridine-2- carboxylic acid (p96, 40 mg, y=10%) as a white solids. P95 MS (/77/z): 219.2 [MH]+ 1 H NMR (MeOD-d4) delta 8.17 (d, 1 H), 7.72 (s, 1 H), 7.54 (br. s., 1 H), 2.62 (br. s., 3 H), 2.38 (s, 3 H) P96 MS (mlz): 219.2 [MH]+ 1 H NMR (MeOD-d4) delta 8.05 (s, 1 H), 7.94 (d, 1 H), 7.62 (d, 1 H), 2.67 (s, 3 H), 2.40 (s, 3 H)

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

Reference:
Patent; CHRONOS THERAPEUTICS LIMITED; MICHELI, Fabrizio; BERTANI, Barbara; GIBSON, Karl Richard; DI FABIO, Romano; RAVEGLIA, Luca; ZANALETTI, Riccardo; CREMONESI, Susanna; POZZAN, Alfonso; SEMERARO, Teresa; TARSI, Luca; LUKER, Timothy Jon; (275 pag.)WO2019/43407; (2019); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 288-36-8, 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 288-36-8 as follows.

A solution of 2-iodobenzoic acid (3.0 g, 12.09 mmol) in DMF (1.0 mL) was treated with 1,2,3-triazole (1.5 g, 21.7 mmol), copper(I) iodide (0.25 g, 1.2 mmol), Cs2CO3 (7.08 g, 21.7 mmol), and trans-N,N?-dimethylcyclohexane-l ,2-diamine (0.31 g, 2.17 mmol). The mixture was heated at 120 CC for 12h. The reaction was cooled to ii, diluted with EtOAc, and filtered through Celite. The residue was purified by gradient elution on Si02 (0 to 10% MeOH in DCM with 0.1% AcOH) to give the title compound.?HNMR (500 MHz, DMSO-d6) 3 13.05 (br s, 1H), 8.12 (s, 2H), 7.81-7.52 (m, 4H) ppm. LRMS m/z (M+H) 190.2 found, 190.2.

According to the analysis of related databases, 288-36-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KIM, Ronald; KUDUK, Scott, D.; LIVERTON, Nigel; ZHUO, Gang; (97 pag.)WO2016/100157; (2016); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7411-23-6, A common heterocyclic compound, 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, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

To a colorless solution of 3,5-dibromo-lH-l,2,4-triazole (lnt-1, 250 mg, 1.1 mmol, Eq: 1) and bromocyclobutane (179 mg, 1.32 mmol) in DMF (3 ml) was added K2CO3 (305 mg, 2.2 mmol). The vial was closed under argon and stirred over night at 120C. The reaction mixture was diluted with 25 mL H20 and extracted with EtOAc (2 x 25 mL). The organic layers were washed with sat NaCl (3 x 25 mL), dried over MgS04 and concentrated in vacuo. The title compound was isolated as a yellow liquid (288 mg, 93 % yield). MS (ES+) m/z: 281.9 [(M+H)+].

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; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; BARTELS, Bjoern; BERCHTOLD, Stefan; GALLEY, Guido; GOERGLER, Annick; JAKOB-ROETNE, Roland; KRUMMENACHER, Daniela; LIMBERG, Anja; NEIDHART, Werner; RATNI, Hasane; REUTLINGER, Michael; RODRIGUEZ SARMIENTO, Rosa Maria; SCHNIDER, Christian; (309 pag.)WO2018/87018; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics