Triazoles

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

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

184177-83-1, name is 1-((2S,3S)-2-(Benzyloxy)pentan-3-yl)-4-(4-(4-(4-hydroxyphenyl)piperazin-1-yl)phenyl)-1H-1,2,4-triazol-5(4H)-one, 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. HPLC of Formula: C30H35N5O3

To a stirred solution of (lS)-(2S)-2-(2-benzyloxy-l-ethyl-propyl)-4-{4-[4-(4-hydroxy-phenyl)- piperazin-l-yl]-phenyl}-2,4-dihydro-[l,2,4]triazole-3-one (1Og) in dimethylsulfoxide (100ml), a solution of sodium hydroxide (1.3g) in water (5ml) was added at ambient temperature and stirred for 15 minutes. To the resulting mixture (-)-(5R-cis)-5-(2,4-difluorophenyl)-5-[(lH-l,2,4- triazole-1-yl) methyl] -tetrahyro-3 -furanmethanol-4-chlorobenzene sulphonate (10.0 g) was added, raising the temperature to 35-45 C and stirred at the same temperature for 10-12 hours. To the resulting solution water was added and stirred for 60 minutes. The resulting mixture was filtered to obtain 12.5g of the title compound having purity of 97.0% by HPLC.

The synthetic route of 184177-83-1 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; IND-SWIFT LABORATORIES LIMITED; WO2009/141837; (2009); A2;,
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. 15988-11-1, name is 4-Phenyl-1,2,4-triazolidine-3,5-dione, A new synthetic method of this compound is introduced below., Formula: C8H7N3O2

General procedure: General procedure for the synthesis oftriazolo[1,2-a]indazole-trione (1a-g) and2H-indazolo[2,1-b]phthalazine-triones (2a-g)To a well-ground mixture of arylaldehyde (1 mmol), dimedone(0.140 g, 1 mmol) and 4-phenylurazole (0.177 g, 1 mmol) or2,3-dihydrophthalazine-1,4-dione (0.162 g, 1 mmol), was added[Et3N-SO3H]HSO4[(0.028 g, 0.1 mmol) for the preparation of1a-gor (0.042 g, 0.15 mmol] for the synthesis of2a-g}. Theobtained mixture was firstly stirred magnetically at 90C, andafter solidification of the reaction mixture, it was stirred with asmall rod at same temperature. After the reaction was completed(as observed by TLC), the reaction mixture was cooled to roomtemperature, water (2 mL) was added, stirred for 3 min, andfiltered. The solid residue was recrystallized from EtOH/H2O(4/1) to give the pure product.

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; Zare, Abdolkarim; Masihpour, Fatemeh; Phosphorus, Sulfur and Silicon and the Related Elements; vol. 191; 8; (2016); p. 1160 – 1165;,
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

Electric Literature of 15988-11-1, 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 15988-11-1 as follows.

General procedure: A mixture of dimedone (1 mmol), aldehyde or isatin (1 mmol) and 4-phenylurazole (1 mmol), and catalyst (0.01 g, 5 mol%) in water (5 mL) was refluxed. After completion of the reaction that was monitored by TLC (EtOAc:n-hexane, 1:3), the reaction mixture was cooled to room temperature. Then, the precipitated product was filtered and washed with water and cooled with ethanol to afford the pure product.

According to the analysis of related databases, 15988-11-1, the application of this compound in the production field has become more and more popular.

Reference:
Article; Seyyedhamzeh, Mozhdeh; Shaabani, Shabnam; Hamidzad Sangachin, Mona; Shaabani, Ahmad; Research on Chemical Intermediates; vol. 42; 4; (2016); p. 2845 – 2855;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 7343-33-1, 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. 7343-33-1, name is 5-Bromo-1H-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows.

200 mg of intermediate 35, 60percent sodium hydride(Oily), and 1 mL of DMF,Under ice-cooling, 198 mg of 3-bromo-1H-1,2,4-triazole was added. After stirring for 2.5 hours under ice cooling,Saturated multilayer aqueous solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine,And dried over anhydrous sodium sulfate. The obtained organic layer was dried under reduced pressure. The obtained residue was subjected to silica gel chromatography,83 mg of the present invention compound 245 described below was obtained.

The chemical industry reduces the impact on the environment during synthesis 5-Bromo-1H-1,2,4-triazole. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Sumitomo Chemical; Ikari, Kaori; (123 pag.)JP2019/6686; (2019); A;,
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. 6818-99-1, name is 3-Chloro-1,2,4-triazole belongs to Triazoles compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C2H2ClN3

EXAMPLE 188 A mixture of 3-chloro-1,2,4-triazole (10.3 g., 0.1 m.) and 1,3-diaminopropane (7.4 g., 0.1 m.) in ethanol containing sodium ethoxide is allowed to stand overnight. The solvent is removed to give 3-(3-aminopropylamino)-1,2,4-triazole.

The synthetic route of 6818-99-1 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Smith Kline & French Laboratories Limited; US3950353; (1976); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, 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. Computed Properties of C3H3N3O2

A. (2S,4R)-5-Biphenyl-4-yl-2-hydroxymethyl-2-methyl-4-[(3H-[1,2,3]triazole-4-carbonyl)-amino]-pentanoic acid (R4=H; R7=H) 1,2,3-Triazole-4-carboxylic acid (130 mg, 1.2 mmol, 1.2 eq.) and HATU (400 mg, 1.1 mmol, 1.1 eq.) were dissolved in DIPEA (167 muL) and the resulting mixture was stirred for 5 minutes at room temperature in DMF (0.2 mL). DIPEA (3 eq.) and (2S,4R)-4-amino-5-biphenyl-4-yl-2-hydroxymethyl-2-methyl-pentanoic acid (300 mg, 957 nmol, 1.0 eq.) dissolved in DMF (0.2 mL) was added, and the resulting mixture was stirred for 15 minutes. The reaction was quenched with AcOH and the product was purified by preparative HPLC then lyophilized to yield the title compound (120 mg, 95% purity). MS m/z [M+H]+ calc’d for C22H24N4O4, 409.18. found 409.4.

The synthetic route of 16681-70-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; THERAVANCE, INC.; US2012/213806; (2012); 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