Category: 41253-21-8

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. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, A new synthetic method of this compound is introduced below., Formula: C2H2N3Na

(2) Production Example 2-2 (0100) 3.24 mmol of compound 4-a was dissolved in 3.2 mL of dimethylacetamide, and heated to 85 C. 4.85 mmol of a sodium salt of 1,2,4-triazole and 4.53 mmol of TMSOB were added to the obtained solution. Next, 1.64 mmol of a 28% methanol solution of sodium methoxide was added intermittently over a period of 50 minutes, after which a reaction was allowed to progress for 50 minutes. Following completion of the reaction, azole derivative 6-a was obtained using the same method as that used in Production Example 2-1 above. The purity was 99.1%.

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; Kureha Corporation; Masano, Taiga; Sudo, Keiichi; US2015/218134; (2015); A1;,
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. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, A new synthetic method of this compound is introduced below., Recommanded Product: 41253-21-8

Example 121; 4-[[2-(1 H-Lambda ,2,4-TriazoM -yl)ethyl](2,2,2-trif luoroethyl)amino]-2- (trifluoromethyl)benzonitrile; A mixture of 2-[[4-cyano-3-(trifluoromethyl)phenyl](2,2,2-trifluoroethyl)amino]ethyl methanesulfonate, Example 15C (0.050 g, 0.128 mmol) and 1 ,2,4-triazole sodium salt (0.023 g, 0.256 mmol) in DMF (2 ml_) was heated at 6O0C under N2 for 45 min. Upon cooling, the mixture was partitioned between Et2O and water. The organic phase was washed with water and the combined aqueous phases were extracted twice with Et2O. The combined organic phases were washed with brine, dried (Na2SO4), and concentrated in vacuo. The residue was purified by silica gel chromatography (5-80% EtOAc/hexanes gradient followed by 1-10% MeOH/EtOAc gradient) and the product was crystallized from CH2CI2/hexanes to give the title compound as a white solid (0.038 mg, 83% yield): MS (ES) m/z 364 (M+1 ).

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; SMITHKLINE BEECHAM CORPORATION; WO2006/44707; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

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, SDS of cas: 41253-21-8

First, 1H-1,2,4-triazole sodium salt (13.1 mmol) was dissolved in NMP (7 ml) and an internal temperature of thus obtained mixture was raised to 115C. Into this mixture, Compound IX-1 (8.76 mmol) was added and the mixture was washed with NMP (1.8 ml). Then, after the internal temperature rises back to 115C, sodium t-butoxide (5.26 mmol) and trimethylsulfoxonium bromide (1.476 mmol) were added in parts over approximately 3 hours. After addition of these sodium t-butoxide and trimethylsulfoxonium bromide had completed, stirring was carried out for 75 minutes at the internal temperature of 115C. Subsequently, after thus obtained reaction solution was cooled down to 35C, water was added to the reaction solution. Then, extraction with ethyl acetate was carried out. Further, an organic layer was washed with water and saturated brine, and dried with anhydrous sodium sulfate. Subsequently, a solvent was distilled away. Thereafter, by purification of a resultant residue by silica gel column chromatography, a target substance was obtained. [0291] Yield: 71%

At the same time, in my other blogs, there are other synthetic methods of this type of compound, Sodium 1,2,4-triazol-1-ide, and friends who are interested can also refer to it.

Reference:
Patent; Kureha Corporation; TATEISHI, Hideaki; ARAKI, Nobuyuki; YAMAZAKI, Toru; MIYAKE, Taiji; SUDO, Keiichi; KANNO, Hisashi; EP2719281; (2014); A1;,
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. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, A new synthetic method of this compound is introduced below., category: Triazoles

(ii) Preparation of crude anastrozole; Into a 1 L, three-necked RB flask was charged 60g of sodium triazole monohydrate (prepared by reaction of molar quantities of 1,2,4-IH-triazole and sodium hydroxide in isopropanol at reflux temperature and isolated by filtering of the reaction mass at room temperature) and 200ml of dry DMF under nitrogen atmosphere. The reaction mass was cooled to 20 C. A solution of the above bromo compound of formula-V (140g) in toluene (200ml) was added to the reaction mass over a period of 2hr. The reaction mass was maintained at this temperature until the completion of reaction. The reaction mass was transferred into 3L flask containing 1.5L of water and stirred for 30min. Reaction mass was extracted with toluene (2 x 300ml and 1 x 100ml). Toluene layers were combined and washed with water (2 x 200ml). Toluene layer was treated with activated carbon (5g) and filtered. Toluene was distilled of from the filtrate under vaccum to get 130g of crude anastrozole.

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

Reference:
Patent; NATCO PHARMA LIMITED; PULLA REDDY, Muddasani; VENKAIAH CHOWDARY, Nannapaneni; WO2005/105762; (2005); A1;,
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 41253-21-8 as follows. name: Sodium 1,2,4-triazol-1-ide

Triazole sodium salt (6.54 mmol) was dissolved in NMP 4 mL and the mixture was heated to 115 C. (internal temperature). 2-(4-Fluorobenzyl)-8,8-dimethyl-7,9-dioxa-spiro[4,5] decan-1-one (compound (XVI-1): Ym=4-F) 1.27 g dissolved in NMP 3 mL was added thereto. After the internal temperature reached 116 C., sodium t-butoxide (2.61 mmol) and TMSOB (5.87 mmol) were added in portions over 2.3 hours to carry out the reaction. After all reagents were added, the mixture was agitated additionally for 25 minutes. The reaction solution was cooled to room temperature; saturated aqueous sodium chloride solution was added thereto; and the mixture was extracted with ethyl acetate. The organic layers were combined, washed with saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate, and the solvent was removed by distillation under reduced pressure. The residue was purified by silica gel column chromatography, to give the title compound (XV-1) as an isomer mixture.Yield: 66.7%

According to the analysis of related databases, 41253-21-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; KUREHA CORPORATION; Araki, Nobuyuki; Miyake, Taiji; Imai, Eiyu; Obata, Emiko; US2014/179517; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route 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.

Prepare a dry, clean 500mL glass four-port bottle, equipped with a suitable mechanical stirrer, condenser tube and thermometer, and check the airtightness before adding the material.95 g of 2′-chloro-2,4-difluoroacetophenone (compound 5) (0.5 mol, 1 eq), 69 g was added to the reaction flask under N2 protection.Sodium 1,2,4-triazolyl (Compound 6) (0.75 mol, 1.5 eq) and 200 mL of DMF were stirred and the temperature of the reaction solution was raised to 70-75 C. The reaction was stirred for 12 h. After the reaction was completed, the reaction system was cooled to At room temperature, 400 ml of water was added, and then 600 ml of ethyl acetate was added for extraction. The separated ethyl acetate phase was washed with 300 ml of water and the organic phase was separated. The solvent was distilled off under reduced pressure and 300 ml of n-heptane was added for recrystallization to give a white solid. Powdery Compound 1 84.8 g (yield: 76.0%).

Statistics shows that Sodium 1,2,4-triazol-1-ide is playing an increasingly important role. we look forward to future research findings about 41253-21-8.

Reference:
Patent; Jiangsu Hengsheng Pharmaceutical Co., Ltd.; Wang Xilin; Yu Yuanyuan; (8 pag.)CN107746388; (2018); 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. 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C2H2N3Na

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) ? 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.

According to the analysis of related databases, 41253-21-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Naidu, B. Narasimhulu; Banville, Jacques; Beaulieu, Francis; Connolly, Timothy P.; Krystal, Mark R.; Matiskella, John D.; Ouellet, Carl; Plamondon, Serge; Remillard, Roger; Sorenson, Margaret E.; Ueda, Yasutsugu; Walker, Michael A.; US2005/267105; (2005); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

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. COA of Formula: C2H2N3Na

Compound 485; Synthesis of (4-hvdroxy-3,5-dimethochiyphenylY5-thiazol-2-yl-2-r 1 ,2,41 thiazol- 1 -yl-phenyl)methanone; Compound 347 [(5-(thiazol-2-yl)-2-(lH-l,2,4-triazol-l-yl)phenyl)(3,4,5- trimethoxyphenyl)methanone] (41.7 mg, 0.1 mmol) was dissolved in DMF (3 ml), and 1,2,4-triazole-Na (27 mg) was added thereto at room temperature. The mixture was reacted at 130C for 12 hours. After completion of the reaction, the reaction mixture was cooled to room temperature, and diluted with an EtOAc solution. The organic layer was washed with a saturated ammonium chloride solution, water, and brine. The extracted organic layer was dried over anhydrous MgSO4, and the solid substance was filtered off. The filtrate was vacuum evaporated to remove the solvent. The resulting residue was purified by column chromatography (SiO2, CH2Cl2/MeOH=40/l?10/l) to obtain Compound 485 (78.7 mg, 73%) in a form of a white solid.1H NMR (CDCl3) delta 8.375 (brs, IH), 8.345 (dd, J = 10.5, 8.40, IH), 8.173 (d, J= 2.10 Hz, IH), 7.965 (m, 2H), 7.773 (d, J= 8.40 Hz, IH), 7.476 (d, J = 3.0 Hz, IH), 3.857 (s, 6H). MS (ESI) m/z 409 (M+ + H).

The synthetic route of Sodium 1,2,4-triazol-1-ide has been constantly updated, and we look forward to future research findings.

Reference:
Patent; CHONG KUN DANG PHARMACEUTICAL CORP.; WO2008/38955; (2008); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 41253-21-8, A common heterocyclic compound, 41253-21-8, name is Sodium 1,2,4-triazol-1-ide, molecular formula is C2H2N3Na, 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.

(ii) Preparation of crude anastrozole of formula-I; Into a 10L, three-necked RB flask was charged l.4kg of above crude compound of formula-V and 7L of anhydrous DMF. The reaction mass was stirred for 30min and added 0.65kg of solid sodium triazole (prepared by reaction of molar quantities of 1,2,4- IH-triazole and sodium hydroxide in isopropanol at reflux temperature and isolated by filtering of the reaction mass at room temperature) in lots keeping the temperature below 25 C. The reaction mass was maintained under stirring at this temperature for 4hr. HPLC of the reaction mass indicated the absence of starting material. The reaction mass was transferred into a 50L flask containing 21L of water and stirred for 30min. Reaction mass was extracted with toluene (2 x 3L and 1 x 1L). Toluene layers were combined and . washed with water (2 x 2L). Toluene was distilled of from the filtrate under vaccum to get 1.2kg of crude anastrozole.; Example 3; Preparation of pure anastrozole of the formula-I; (i) Preparation of crude anastrozole; Into a 1L, three-necked RB flask was charged 45g of anhydrous sodium triazole and 250ml of dry DMF under nitrogen atmosphere. The reaction mass was cooled to 25 C. Bromo compound of formula-V (100g, prepared according to the process given in EP 0296749, example 1) was added to the reaction mass over a period of 2hr. The reaction mass was maintained at this temperature until the completion of reaction. The reaction mass was transferred into 3L flask containing 1.6L of water and stirred for 30min. Reaction mass was extracted with toluene (2 x 300ml and 1 x 100ml). Toluene layers were combined and washed with water (2 x 200ml). Toluene layer was treated with activated carbon (5g) and filtered. Toluene was distilled of from the filtrate under vaccum to get 95g of crude anastrozole.; Example 4; Preparation of pure anastrozole of the formula-I; (i) Preparation of crude anastrozole; Into a 1L, three-necked RB flask was charged 60g of sodium triazole monohydrate and 400ml of dry DMF under nitrogen atmosphere. The reaction mass was cooled to 25 C. Bromo compound of formula-V (100g, prepared according to the process given in EP 0296749, example 1) was added to the reaction mass over a period of 2hr. The reaction mass was maintained at this temperature until the completion of reaction. The reaction mass was transferred into 3L flask containing 1.6L of water and stirred for 30min. Reaction mass was extracted with toluene (2 x 300ml and 1 x 100ml). Toluene layers were combined and washed with water (2 x 200ml). Toluene layer was treated with activated carbon (5g) and filtered. Toluene was distilled of from the filtrate under vaccum to get 96g of crude anastrozole.

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

Reference:
Patent; NATCO PHARMA LIMITED; PULLA REDDY, Muddasani; VENKAIAH CHOWDARY, Nannapaneni; WO2005/105762; (2005); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature 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.

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) cm1: 1605.72, 1556.78 (C=N). Tof-MS: m/z [M + H]+ 383.65.

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