Tag: M.W=0-100

Adding a certain compound to certain chemical reactions, such as: 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, 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 41253-21-8, Recommanded Product: Sodium 1,2,4-triazol-1-ide

General procedure: 2-Chloro-N-(6-alkoxybenzo[d]thiazol-2-yl)acetamide (5 mmol) and sodium 1,2,4-triazole (6 mmol)were dissolved in N,N-dimethylformamide (10 mL) and stirred for 10 h at room temperature. Half of thesolvent was then evaporated, the solution was poured in 50 mL water, and extracted with ethyl acetate(30 mL 3). The ethyl acetate layer was dried over anhydrous MgSO4. After removing the solventunder reduced pressure, the crude product was obtained and recrystallized from dichloromethane toyield a white solid.N-(6-((3-Fluorobenzyl)oxy)benzo[d]thiazol-2-yl)-2-(1H-1,2,4-triazol-1-yl)acetamide (7a). White solid in55.1%. mp: 212-213 C. 1H-NMR (300 MHz, DMSO) delta12.73 (s, 1H, -CO-NH-), 8.59 (s, 1H, triazole-H),8.03 (s, 1H, triazole-H), 7.77-7.64 (m, 2H, Ar-H), 7.52-7.40 (m, 1H, Ar-H), 7.37-7.27 (m, 2H, Ar-H),7.23-7.10 (m, 2H, Ar-H), 5.33 (s, 2H, triazole -CH2-), 5.18 (s, 2H, -OCH2-). 13C-NMR (75 MHz, DMSO) delta166.31, 162.67 (d, J = 243.8 Hz), 156.09, 155.57, 152.04, 146.23, 142.99, 140.38 (d, J = 7.5 Hz), 133.21,130.94 (d, J = 8.4 Hz), 124.07 (d, J = 2.6 Hz), 121.88, 116.15, 115.08 (d, J = 21.0 Hz), 114.77 (d, J = 21.8 Hz),106.59, 69.42, 51.57. IR (KBr) cm-1: 1605.72, 1556.78 (C=N). Tof-MS: m/z [M + H]+ 383.65.

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:
Article; Liu, Da-Chuan; Zhang, Hong-Jian; Jin, Chun-Mei; Quan, Zhe-Shan; Molecules; vol. 21; 2; (2016);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 288-88-0, These common heterocyclic compound, 288-88-0, name is 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.

Preparation of 1-phenyl-1H-[1,2,4]triazole [0220] Following General Procedure A (90 0C, 30 hours), 1/-/-[1 ,2,4]triazole (104 mg, 1.5 mmol) is coupled with iodo-benzene (112 muL, 1.0 mmol). The crude brown oil is purified by flash chromatography on silica gel (eluent: dichloromethane/hexanes = 50/50) to provide 120 mg (83 % isolated yield) of the desired product as a light yellow solid. 007/001836_ 49 -IdentificationMp: 460C.1H NMR (400 MHz, CDCI3): delta 8.49 (s, 1 H1 H8), 8.03 (s, 1H, H7), 7.58-7.61 (m, 2H, H2i6), 7.40-7.44 (t, 2H1 H3,5), 7.31-7.33 (t, 1 H, H4).13C NMR (100 MHz, CDCI3): delta 152.62 (C7), 140.91 (C8), 136.99 (C1), 129.77 (C3,5), 128.21 (C4), 120.04 (C2i6).IR (KBr) : v (cm’1) = 3105, 2924, 2852, 1600, 1514, 1416, 1359, 1278, 1223,1152, 1055, 981 , 876, 754, 681 , 671 , 503.GC/MS: rt = 15.28 min, M/Z = 145.HRMS: 146.0721 (M+H). Theoretical: 146.0718

The synthetic route of 288-88-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.); Ecole Nationale Superieure de Chimie de Montpellier; WO2008/4088; (2008); A2;,
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 61-82-5 as follows. category: Triazoles

General procedure: To a mixture of dimedone (1 mmol), aldehyde (1 mmol), 2-aminobenzimidazole or 3-amino-1,2,4-triazole (1 mmol)and nano-SiO2 (15 mol %) in the acetonitrile (5 mL) was stirred for appropriate time (Table 2) at 25-30 C. After the completion of the reaction as indicated by TLC, dichloromethane (CH2Cl2) was added to the solidified mixture and the insoluble catalyst was separated by filtration. Evaporation of the solvent from the filtrate and recrystallization of the solid residue from hot ethanol afforded the pure products in high yields.

According to the analysis of related databases, 61-82-5, the application of this compound in the production field has become more and more popular.

Reference:
Article; Mousavi, Mir Rasul; Maghsoodlou, Malek Taher; Journal of the Iranian Chemical Society; vol. 12; 5; (2015); p. 743 – 749;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 41253-21-8, These common heterocyclic compound, 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, 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 (II-1) (48.6mmol) N, N- dimethylacetamide ( 30 mL) And it was dissolved in water (2.3mL), and the temperature was raised to 65C . Here , compound (III-1) (63.3mmol), TMSOB (58.4mmol) and sodium hydroxide ( 12. 0mmol) was added and stirring . After 7 hours , 2 hours reaction is performed by elevating the temperature of the reaction temperature to 85C It was . After completion of the reaction , water was added to the reaction mixture, and the mixture was extracted with toluene to obtain a compound (I-1). 82.0% yield .

The synthetic route of 41253-21-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; KUREHA CORPORATION; SANO, RUMI; SAWA, TOMOHIRO; MASANO, TAIGA; (21 pag.)JP2016/3226; (2016); A;,
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. 288-36-8, name is 1H-1,2,3-Triazole, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C2H3N3

Intermediate 3: 5-Methyl-2-(2H-l,2,3-triazol-2-yl)benzoic acid To the solution of 1,2,3-triazole (1.99 g, 28.93 mmol) in DMF (7.0 ml) at 0-10UC was added cesium carbonate (4.7 g, 14.45 mmol), N,N-dimethylethylenediamine (0.127 g, 1.45 mmol), copper(I) iodide (0.068 g, 0.36 mmol) and 2-iodo-5-methylbenzoic acid (3.79 g, 14.46 mmol). The reaction was subjected to microwave irradiation at 125 C for 15 minutes, and then poured into water (20 ml) and extracted with ethyl acetate. The combined organics were washed with brine, dried (sodium sulphate) and concentrated in vacuo. The crude product was purified by column chromatography (0-3 % methanol in dichloromethane) to afford the title compound.1H NMR (DMSO-i/6) delta ppm 2.42 (s, 3 Eta), 7.49 – 7.52 (m, 1 Eta), 7.58 – 7.64 (m, 2 Eta), 8.05 (s, 2 H), 13.01 (s, 1 H)MS ES+: 204

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 288-36-8.

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

288-36-8, name is 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. Recommanded Product: 288-36-8

Add 1.1 kg of acetone to the 5L reaction flask.131g 2-iodo-5-methylbenzoic acid,Stir and dissolve,Add 350g of anhydrous potassium carbonate,After heating to reflux (55-60 C) for half an hour, add 114g 1,2,3-triazole,2.4 g of cuprous iodide.The reaction was kept under reflux (55-60 C) for 8 hours, sampled, and sampled once every 1 h. After the reaction was completed, it was cooled to room temperature for filtration, and the filter cake was washed twice with 120 g of acetone to obtain a white solid at room temperature (20-30 C). The white solid was dissolved in 1.3 kg of purified water and stirred.After 30 min, hydrochloric acid was added dropwise at room temperature to adjust the pH of the system to 1.5-2.0 to obtain a large amount of white solid. It was stirred for 1-2 hours, filtered, and the filter cake was washed twice with purified water. The resulting solid was dried to dryness at 50 ¡À 5 C to give a crude compound.Add 1 compound of crude product, 0.2 kg of absolute ethanol and 0 kg of purified water to a 1 L reaction flask, and warm to 75-80 C.Clear, heat for half an hour, cool to 0-5 C, filter, filter cake with a cold ethanol solution rinse, to obtain a white solid compound 1 boutique.The compound 1 was placed in a blast drying oven at a temperature of 55 C ¡À 5 C and dried for 5 h. Sampling, sampling every 2h 1Time, until the test (rapid moisture analyzer: 105 C, 10 min) loss on drying ? 0.5%, get Suwoleisheng intermediate products -Compound 1 was fine white crystalline solid 86 g, yield: 93%. Purity: 99.91%, Cu < 5 ppm. The synthetic route of 288-36-8 has been constantly updated, and we look forward to future research findings. Reference:
Patent; Yangzijiang Pharmaceutical Group Co., Ltd.; Zou Yiquan; Xu Jingren; Cai Wei; Xuan Jingan; Chen Lingwu; Ji Ye; Zhu Yunlong; Liu Jinfeng; Hu Tao; (8 pag.)CN109810067; (2019); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 7170-01-6, These common heterocyclic compound, 7170-01-6, name is 3-Methyl-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.

To a solution of 4-fluorobenzaldehyde (3.63 g) and 3-methyl-lH-l,2,4-triazole (2.92 g; prepared according to US 2006/293304) in dry DMF (35 mL) was added K2C03 (24.25 g) at rt. The reaction mixture was stirred at 120C overnight, then cooled to rt and diluted with EA and water. The aq. layer was extracted with EA (2x) and the combined org. layers were washed with water and brine, dried over MgS04, filtered and concentrated under reduced pressure. The title compound was obtained, after purification by CC (Hept/EA 80:20 to 50:50), as a yellow solid (36% yield).1H NMR (CDCls) delta: 10.06 (s, 1H); 8.58 (s, 1H); 8.04 (d, J = 8.0 Hz, 2H); 7.88 (d, J = 8.0 Hz, 2H); 2.53 (s, 3H).

The synthetic route of 7170-01-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ACTELION PHARMACEUTICALS LTD; BUR, Daniel; GUDE, Markus; HUBSCHWERLEN, Christian; PANCHAUD, Philippe; WO2011/121555; (2011); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application 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.

The 5-chloro-6-methyl-pyrazolo [1,5-a] pyrimidine-3-carboxylic acid butyl 3rd (607 mg) for N, N- dimethyl formamide (39.8 ml) is added a solution of 4-methyl -1H-1, 2, 3-triazole (208 mg) and potassium carbonate (378 mg). The reaction mixture is stirred at room temperature for 2 hours, to be added, and the mixture is extracted with ethyl acetate. Extract water and saturated salt water cleaning, drying with anhydrous sodium sulfate, and the evaporation of the solvent under reduced pressure. Aid hemostasis by silica gel column chromatography purification (hexane/ethyl acetate), in order to produce the title compound (167 mg).

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; TAKED A PHARMACEUTICAL COMPANY LIMITED; KAWASAKI, MASANORI; MIKAMI, SATOSHI; NAKAMURA, SHINJI; NEGORO, NOBUYUKI; IKEDA, SHUHEI; ASHIZAWA, TOMOKO; MARUI, SHOGO; TANIGUCHI, TAKAHIKO; (135 pag.)TW2016/520; (2016); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature 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.

[0433] 1,2,4-Triazole sodium salt (236 mg, 2.7 mmol) was added to a solution of the title compound from Example 7, Step 1 (1.9 mmol) in 1.5 ml of DMF and the resulting mixture was heated at 50 C. for 18 hours. The cooled reaction mixture was diluted with 10% aqueous sodium bicarbonate (15 ml) and extracted with three 15 ml portions of dichloromethane. The combined organic layers were dried (Na2SO4) and concentrated to an oil. Purification by flash chromatography (10 micron mesh silica gel; elution with methanol: dichloromethane, 3:97 in volume) afforded the title compound as an oil (415 mg, 70% yield). [0434] Mass spectrum: m/z 314, 316 (m, m+2). [0435] 13C NMR (125 MHz, CDCl3) delta 152.5, 143.5, 141.9, 141.6, 134.2, 133.4, 131.4, 130.3, 129.3, 127.8, 127.7, 122.6, 53.4 ppm.

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; Pfizer Inc.; US2004/229874; (2004); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 41253-21-8,Some common heterocyclic compound, 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, molecular formula is C2H2N3Na, 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-Fluoro-2-1,2,4-triazol-1-yl-benzonitrile. A mixture of 2,3-difluorobenzylnitrile (2.27 g, 16.3 mmol) and triazole sodium salt (1.33 g, 14.8 mmol) in tetrahydrofuran (5 mL) and dimethylformamide (10 mL) was stirred at 85 C. for 4 h. After concentration, the residue was purified by flash chromatography (SiO2) eluting with 25%-50% ethyl acetate/hexane. The isolated product was recrystallized from hot ethyl acetate/hexane to give the title compound as white needles (1.51 g, 54% yield). 1H-NMR (500 MHz, CDCl3) delta ppm: 8.50 (1H, d, J=2.4 Hz), 8.25 (1H, s), 7.69-7.67 (1H, m), 7.60-7.57 (2H, m). LCMS [M+H]+ calcd for C9H6N4F: 189.16. found: 189.14.

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

Reference:
Patent; Bristol-Myers Squibb Company; US2007/129379; (2007); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics