Tag: M.W:100-200

Related Products of 7343-33-1, These common heterocyclic compound, 7343-33-1, name is 5-Bromo-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.

Example 59. Preparation of 3-bromo-l-(4-(trifluoromethoxy)phenyl)-lH-l,2,4-triazole (B61) To a 250 mL reaction flask was added 3-bromo-lH-l,2,4-triazole (5 g, 33.8 mmol), copper(I) iodide (0.644 g, 3.38 mmol) and cesium carbonate (11.01 g, 33.8 mmol). The flask was evacuated/backfilled with N2, then DMSO (33.8 ml) and l-iodo-4-(trifluoromethoxy)benzene (4.87 g, 16.90 mmol) were added. The reaction mixture was heated to 100 ¡ãC for 20 h. The reaction was cooled to room temperature, diluted with EtOAc and filtered through a plug of Celite. The Celite was further washed with EtOAc. Water was added to the combined organics, and the layers were separated. The aqueous phase was neutralized to pH 7, and further extracted with EtOAc. The combined organics were concentrated in vacuo. Purification via flash chromatography (silica/EtO Ac/Hex) yielded 3-bromo-l-(4- (trifluoromethoxy)phenyl)-lH-l,2,4-triazole as an off white solid (3.78 g, 12.27 mmol, 72.6percent): mp 69-70 ¡ãC; ]H NMR (400 MHz, CDC13) delta 8.44 (s, 1H), 7.70 (d, / = 8.9 Hz, 2H), 7.38 (d, J = 8.5 Hz, 2H); 19F NMR (376 MHz, CDC13) delta -58.04; EIMS m/z 307.

The synthetic route of 7343-33-1 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; DOW AGROSCIENCES LLC; CROUSE, Gary D.; DEMETER, David A.; SPARKS, Thomas C.; WANG, Nick X.; DENT, William Hunter; DEAMICIS, Carl; NIYAZ, Noormohamed M.; BAUM, Erich W.; FISCHER, Lindsey G.; GIAMPIETRO, Natalie C.; FRITZ, Amanda E.; WO2014/11429; (2014); 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. 16227-12-6, name is 4-Phenyl-4H-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows., category: Triazoles

EXAMPLE 127 4-phenyl-1-(pent-1-yl)triazolium bromide 0.15 g (0.001 mol) 4-phenyltriazole 1 and 0.37 ml (0.45 g, 0.003 mol) 1-bromopentane 2 are combined in a pressure tube. The mixture is stirred 12 h at 110 C. Subsequently, it is cooled down to room temperature. The precipitated solid is taken up in a 1:1 mixture of THF and petroleum ether, is filtered off, and washed with diethylether. M 296.21 C13H18N3Br Yield: 0.231 g (78%) 1H-NMR DM-229 (300 MHz/DMSO): (ppm)=0.88 (t, 3H, 11-H); 1.37 (m, 4H, 9); 1.96 (q, 2H, 8-H); 4.44 (t, 2H, 7-H); 7.69 (m, 3H, 5/5’/6H); 7.85 (d, 2H, 4/4′-H); 9.81 (s, 1H, 2-H); 10.86 (s, 1H, 1-H) 13C-NMR DM-229 (75.475 MHz/DMSO):

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 16227-12-6.

Reference:
Patent; TECHNISCHE UNIVERSITAET DRESDEN; US2011/105761; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

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. 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below. Quality Control of 4-Phenyl-1,2,4-triazolidine-3,5-dione

General procedure: A mixture of dimedone (1, 1 mmol), 4-phenylurazole (2, 1 mmol), aromatic aldehyde (3a-h, 1mmol) and S-LCCO nano perovskite (0.01 g) was mixed in a high-pressure Teflon reactor, which was equipped with a magnetic stirrer and an optical fiber, which was implemented to control the reaction’s temperature. The reaction mixture was irradiated by 400 W microwave at 80 oC, for the specified reaction times. TLC with n-hexan:ethylacetate eluent was used to monitor the progress of the reactions. After reaction completion and cooling, the reaction mixtures were filtered and washed with ethanol to separate the catalyst. First, 10 mL water was added to the solution. Then, EtOH/H2O (4:1) was added to crystallize the water insoluble crude products. Then the crystals were filtered to achieve pure products (4a-h).

The synthetic route of 15988-11-1 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zahedi, Najmeh; Javid, Ali; Mohammadi, Mohammad Kazem; Tavakkoli, Haman; Bulletin of the Chemical Society of Ethiopia; vol. 32; 2; (2018); p. 239 – 248;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 27996-86-7, The chemical industry reduces the impact on the environment during synthesis 27996-86-7, name is 4-[1,2,4]Triazol-1-yl-benzaldehyde, I believe this compound will play a more active role in future production and life.

L-Proline (1.81 g, 15.6 mmol) was added to a stirring, heterogeneous mixture of 4-(1H-1,2,4-triazol-1-yl)benzaldehyde (13.5 g, 78.0 mmol, Intermediate 82: step a) and 2,2-dimethyl-1,3-dioxane-4,6-dione (11.2 g, 78.0 mmol) in ethanol (520 mL) at 23 C. After 1.5 hours, diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (19.7 g, 78.0 mmol) was added in one portion. After 16 hours, the ethanol was removed by rotary evaporation at 35 C. to afford a yellow solid. Isopropanol (300 mL) was added and the heterogeneous mixture was stirred for 10 minutes at 23 C. The mixture was filtered and the filter cake was washed with isopropanol (150 mL). The solids were collected and dried under vacuum to provide the titled compound as a white solid.

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-[1,2,4]Triazol-1-yl-benzaldehyde, other downstream synthetic routes, hurry up and to see.

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

Adding a certain compound to certain chemical reactions, such as: 4928-88-5, name is Methyl 1H-1,2,4-triazole-3-carboxylate, 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 4928-88-5, COA of Formula: C4H5N3O2

To a cooled (0 oC) solution of methyl 1H-1,2,4-triazole-3-carboxylate (36 g, 283.2 mmol, 1.0 equiv) in pyridine(300mL) was added triphenylmethyl chloride (85 g, 304.9 mmol, 1.1 equiv) and the suspension was stirred for 90 min at room temperature. Then the suspension was then heated at 100 oC and refluxed for 2h. The clear solution was cooled to room temperature and concentrated under vacuum. Isopropanol (500 mL) was added to the residue and the solid was filtered and washed with 3x 300 mL H2O. The solid was dried in an oven under reduced pressure to afford 85 g of the title compound as a white solid. LCMS ES+ 243 [M+H]+ (Trityl fragment).

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 1H-1,2,4-triazole-3-carboxylate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; GENENTECH, INC.; BRONNER, Sarah M.; CRAWFORD, James J.; CRIDLAND, Andrew; CYR, Patrick; FAUBER, Benjamin; GANCIA, Emanuela; GOBBI, Alberto; HURLEY, Christopher; KILLEN, Jonathan; LEE, Wendy; RENE, Olivier; VAN NIEL, Monique Bodil; WARD, Stuart; WINSHIP, Paul; ZBIEG, Jason; (439 pag.)WO2018/83105; (2018); 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. 1001401-62-2, name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 2-(2H-1,2,3-Triazol-2-yl)benzoic acid

Step iii) ir 3s-N-{4-[(6-FIuoro-l,3-benzot azol-2-yl)ammo]oxolaii-3-yI}-2-(2H-l,2,3- triazoI-2-y)beiizamide A solution of tran5-3-N-(6-fluoro-l,3-benzothiazol-2-yl)oxolane-3,4-diarriinehydrochloride (106 mg, 0.366 mmol), 2-(2H-l ,2,3-triazol-2-yl)benzoic acid (CAS number 1001401-62-2; 83 mg, 0.439 mmol), EDC (105 mg, 0.549 mmol), aza-HOBt (85 mg, 0.549 mmol ) and triethylamime (0.153 ml, 1 .097 mmol) in DCM (2 ml) was stirred at room temperature for 18 hours. The reaction mixture was diluted with DCM (20 ml) and washed with HC1 (aq., IM, 20 ml) and saturated sodium bicarbonate solution (20 ml). The organics were filtered through a hydrophobic frit and solvent evaporated in vacuo. This was then purified by reverse phase preparative HPLC (acetonitrile / water with 0.1% ammonia) to afford the title compound.1H NMR (400 MHz, CD2C12-d2) : delta ppm 3.58 – 3.95 (m, 2 H), 4.13 – 4.32 (m, 2 H), 4.32 – 4.51 (m, 2 H), 6.77 (br. s., 1 H), 6.96 – 7.11 (m, 1 H), 7.25 – 7.41 (m, 2 H), 7.43 – 7.53 (m, 1 H), 7.56 – 7.65 (m, 2 H), 7.76 (s, 2 H), 7.81 – 7.87 (m, 1 H)MS ES+: 425

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 1001401-62-2.

Reference:
Patent; TAKEDA CAMBRIDGE LIMITED; TAKEDA PHARMACEUTICAL COMPANY LIMITED; FIELDHOUSE, Charlotte; GLEN, Angela; ROBINSON, John Stephen; FUJIMOTO, Tatsuhiko; WO2015/55994; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 3641-13-2, A common heterocyclic compound, 3641-13-2, name is 5-Amino-4H-1,2,4-triazole-3-carboxylic acid, molecular formula is C3H4N4O2, 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.

Example 2 (Synthesis of Dye 12); A solution of sodium nitrite (7.59 g; 0.11 mol) in 25 ml water was added rapidly dropwise to a slurry of 3-amino-1,2,4-triazole-5-carboxylic acid (12.81 g; 0.1 mol) in 49 g concentrated HCl (37% aq.) and 100 ml water at 0-5 C. The mixture was stirred 90 minutes at 0-5 C. The resultant diazonium slurry was added rapidly dropwise during 15 minutes to a solution of N-(2- carboxyethyl)-5-aminoquinoline (21.62 g; 0.1 mol; prepared above) in 300 ml 20% aqueous sodium carbonate at 0 C and cooled in ice bath. The mixture was stirred 5 hours, slowly warming to room temperature as the ice bath melted. The pH of the slurry was adjusted to 6.0 with concentrated HCl (37% aq.). The resulting orange precipitate was filtered and then dried at 60 C (crude yield = 49.5 g). The crude product (42.9 g) was re-dissolved in 2000 ml water. Addition of solid nickel(II) acetate tetrahydrate (7.75 g; 0.031 mol) immediately afforded a bright magenta solution of Dye 12 (lambdamax = 525 nm). The dye solution was further purified by ultra-filtration prior to evaluation.

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; LEXMARK INTERNATIONAL, INC.; EP1609823; (2005); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 135242-93-2, name is (1-Methyl-1H-[1,2,4]triazol-3-yl)methanol, 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 135242-93-2, Recommanded Product: 135242-93-2

c 3-Chloromethyl-1-methyl-1H-1,2,4-triazole (1-Methyl-1H-1,2,4-triazol-3-yl)methanol (500 mg, 4.4 mmol) (prepared using the conditions described in EP-A-421210) was added portionwise to thionyl chloride (5 ml) at 0 C. Upon complete addition the mixture was allowed to warm to room temperature, then heated at reflux for 45 minutes (gas evolution observed). Upon cooling the thionyl chloride was removed in vacuo. The residue was partitioned between dichloromethane and aqueous sodium hydrogen carbonate. The aqueous phase was further extracted with dichloromethane (x2). The combined extracts were dried (Na2SO4), filtered and evaporated to give the title chloride (570 mg), as an oil. This material was used without further purification. Data for the title compound: 1H NMR (250 MHz, CDCl3) delta 3.92 (3H, s), 4.63 (2H, s), 8.10 (1H, s). MS (ES+) m/e 133 [MH]+, 131 [MH]+.

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, (1-Methyl-1H-[1,2,4]triazol-3-yl)methanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Merck Sharp & Dohme Ltd.; US6355798; (2002); B1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

626248-56-4, name is 3-(2H-1,2,3-Triazol-2-yl)aniline, 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. Formula: C8H8N4

A mixture of tert-butyl (1S,2R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)cyclohexylcarbamate (80 mg, 0.227 mmol), 3-(2H-1,2,3-triazol-2-yl)aniline (50 mg, 0.312 mmol), K2CO3 (60 mg, 0.434 mmol), BINAP (20 mg, 0.032 mmol) and Pd(OAc)2 (10 mg, 0.044 mmol) in dioxane (2 mL) was degassed with Ar, then was stirred at 100 C for 20 h. Water and EtOAc were added. Organic phase was separated. The aqueous phase was extracted with EtOAc again. The combined organic phases were dried over Na2SO4, concentrated in vacuo to give a crude tert-butyl (1S,2R)-2-(6-(3-(2H-1,2,3-triazol-2-yl)phenylamino)-5-cyanopyrazin-2-ylamino)cyclohexylcarbamate (170 mg).

The synthetic route of 626248-56-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Portola Pharmaceuticals, Inc.; Song, Yonghong; Xu, Qing; Jia, Zhaozhong J.; Kane, Brian; Bauer, Shawn M.; Pandey, Anjali; US2013/131040; (2013); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 16681-70-2, 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 16681-70-2 as follows.

[0622] (2S,4S)-4-Amino-5-biphenyl-4-yl-2-cyanomethylpentanoicacid ethyl ester (70 mg, 199 f.tmol) was combinedwith DMF (1 mL), HATU (76 mg, 199 flillOI), DIPEA (104f.LL, 596 f.tmol), and 3H-[1,2,3]triazole-4-carboxylic acid (22mg, 199 flillOI) and the mixture was stirred at room temperaturefor 20 minutes. The solvent was evaporated and the crudemixture was purified by normal phase chromatography(0-100% EtOAc/hexanes) to yield Compound 1 (60 mg).

According to the analysis of related databases, 16681-70-2, the application of this compound in the production field has become more and more popular.

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