Category: Triazoles

Research speed reading in 2021. In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. 584-13-4, name is 4H-1,2,4-Triazol-4-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 584-13-4

1) 30 g of 5-bromomethyl-alpha, alpha, alpha ‘, alpha’-tetramethyl-1,3-benzenediacetonitrile was added successively to a glass reactor, 4-amino-1,2,4-triazole, acetonitrile 80 ml, heated to reflux under stirring, after 12 h, cooling, crystallization at 0 deg. 8h. Filtration, dried, to give 35.58 g of intermediate I, yield 93.0%;

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 584-13-4, and we look forward to future research findings.

Reference:
Patent; Yangtze River Pharmaceutical Group Jiangsu Haici Biological Pharmaceutical Co., Ltd.; Yangtze River Pharmaceutical Group Co., Ltd.; Niu, Mingyu; Ma, Lijin; Liang, Wen; Wang, Qinghui; Lu, Guihua; Lu, Tianyu; Wang, Wei; (8 pag.)CN106083748; (2016); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 1001401-62-2, New Advances in Chemical Research in 2021. Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 1001401-62-2, name is 2-(2H-1,2,3-Triazol-2-yl)benzoic acid, molecular formula is C9H7N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

A mixture of 2-(2H-1,2,3-triazol-2-yl)benzoic acid (285 mg, 1.5 mmol) in SOCl2 (3 mL) was stirred at RT for 0.5 h. Then the mixture was concentrated in vacuo. To a solution of the product from step 7 (300 mg, 1.26 mmol) and TEA (0.5 mL, 3.78 mmol) in DCM (3 mL) was added the above residue dropwise at 0 oC. The mixture was stirred at 0 oC for 2 h. water (2 mL) was added to quench the reaction and the mixture was extracted with DCM (3 mL x 3). The combined organic layers was washed with brine (3 mL x 3), dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by Prep-HPLC to give the title compound as a solid. LRMS m/z (M+H) 410.1 found, 410.2 required.

The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.I hope my blog about 2-(2H-1,2,3-Triazol-2-yl)benzoic acid is helpful to your research.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; LIVERTON, Nigel; LUO, Yunfu; (68 pag.)WO2016/89721; (2016); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 13423-60-4, name is 1-Phenyl-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C8H7N3

EXAMPLE 109 1-phenyl-4-(prop-1-yl)triazolium bromide 0.300 g (0.002 mol) 1-phenyltriazole 1 and 0.188 ml (0.254 g, 0.002 mol) 1-bromopropane 2 were dissolved in a pressure tube in 5 ml THF. The reaction mixture was stirred for 1 h at 50 C.; however, because no precipitate formed, the temperature was raised first to 80 (2 h) and then to 110 C. After 21 h at 110 C. the reaction mixture was cooled down. A DC check still indicated considerable amounts of the educt 1, so that additional 0.376 ml (0.508 g, 0.004 mol) of the educt 2 was added and stirring was continued for 24 h at 110 C. Subsequently, the reaction mixture was cooled down to room temperature and the same volume petroleum ether was added. The precipitated solid is filtered off, washed with petroleum ether and dried in HV. M 268.16 Yield: 0.0374 g (7%) 1H-NMR DM-102.w (300 MHz/DMSO): (ppm)=0.98 (t, 3H, 9-H); 3.95 (q, 2H, 8-H); 4.31 (t, 2H, 7-H); 7.70 (m, 3H, 5/5’/6H); 7.96 (d, 2H, 4/4′-H); 9.51 (s, 1H, 1-H); 11.00 (s, 1H, 2-H) 13C-NMR DM-102 (74.475 MHz/DMSO):

If you are hungry for even more, make sure to check my other article about 13423-60-4, the application of this compound in the production field has become more and more popular.

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

Synthetic Route of 61-82-5, New Advances in Chemical Research in 2021. Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 61-82-5, name is 1H-1,2,4-Triazol-5-amine, molecular formula is C2H4N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: A mixture of 3-amino-1,2,4-triazole or benzimidazole (1.0 mmol), benzaldehyde (1.0 mmol), dimedone (1.0 mmol), and acetonitrile (5 mL) was taken in a round bottom flask and added iodine (10 mol %) and stirred at 80 C for 10 min. After completion of the reaction, as monitored by TLC, the reaction mass was cooled to room temperature and the solid separated was filtered and washed with water and dried at reduced pressure.Data of representative examples

I am very proud of our efforts over the past few months and hope to 1H-1,2,4-Triazol-5-amine help many people in the next few years.

Reference:
Article; Puligoundla, Ravinder Goud; Karnakanti, Shuklachary; Bantu, Rajashaker; Nagaiah, Kommu; Kondra, Sudhakar Babu; Nagarapu, Lingaiah; Tetrahedron Letters; vol. 54; 20; (2013); p. 2480 – 2483;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 27996-86-7, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 27996-86-7, name is 4-[1,2,4]Triazol-1-yl-benzaldehyde, molecular formula is C9H7N3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

General procedure: Substituted benzaldehydes (0.04 mol) and sodium bisulfite (0.04 mol), dissolved in 20 mL of an ethanol and water mixture, were stirred for 1 h at room temperature. The formed sodium hydroxy(4-substituted phenyl)methanesulfonate salts were obtained by filtration.

This is the end of this tutorial post, and I hope it has helped your research about 27996-86-7!

Reference:
Article; Unsal-Tan, Oya; Ozadali-Sari, Keriman; Ayazgok, Beyza; Kuecuekk?l?nc, Tuba Tueylue; Balkan, Ayla; Medicinal Chemistry Research; vol. 26; 7; (2017); p. 1506 – 1515;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Reference of 16681-65-5, New Advances in Chemical Research in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic,A common heterocyclic compound, 16681-65-5, name is 1-Methyl-1H-1,2,3-triazole, molecular formula is C3H5N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

To a solution of 1-methyl-1 H-1 ,2,3-triazole (Preparation 32, 0.1 g, 1.2 mmol) in tetrahydrofuran (THF, 10 ml) at -780C was added dropwise 1.6 M n-butyl lithium (0.9 ml, 1.4 mmol), maintaining the temperature below -6O0C. The reaction was stirred at – 780C for 30 minutes, then dimethylformamide (0.14 ml, 1.8 mmol) was added. The reaction was warmed to room temperature and stirred for 1 hour. The reaction was quenched with water and extracted with ethyl acetate (3 x 10 ml). The combined organic extracts were washed with water (3 x 10 ml), dried over MgSO4 and concentrated in vacuo. The residue was purified by silica gel column chromatography, eluting with 95:5 to 100:0 dichloromethane:methanol, to afford the title compound as a yellow oil (0.04 g, 30% yield).1HNMR (CDCI3): 4.10 (s, 3H)1 7.88 (s, 1 H), 9.55 (s, 1 H)

Therefore, this conceptually novel strategy might open impressive avenues to establish green and sustainable chemistry platforms.In my other articles, you can also check out more blogs about 1-Methyl-1H-1,2,3-triazole.

Reference:
Patent; PFIZER LIMITED; WO2008/135826; (2008); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Application of 16681-70-2, New Advances in Chemical Research in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, molecular formula is C3H3N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

0867] lH-1,2,3-triazole-5-carboxylic acid (15.3 mg, 135f.tmol) andHATU (51.4mg, 135 fJ.mol)weremixedinDMF (4mL) and stirred at room temperature for 15 minutes. (2S,4S)-4-Amino-2-(1-amino-l-methylethyl)-5-( 5′-chloro-2′-fluorobiphenyl-4-yl)pentanoic acid ethyl ester (50 mg, 123 f.tmol)and DIPEA (64 f.LL, 369 f.tmol) were added. The resultingsolution was stirred at room temperature for 15 minutes, atwhich point LC/MS showed reaction completion. The solventwas removed in vacuo and the crude residue was diluted inEtOH (4 mL). A solution of IN LiOH (983 f.LL, 983 f.tmol) inwater was then added. The resulting solution was stirred at60 C. for 2 days, at which point LC/MS showed reactioncompletion. The solvent was removed in vacuo and the cruderesidue was purified by preparative HPLC to yield the titlecompound (4.2mg) as a TFA salt. MS rn/z [M+Ht calc’dforC23H25ClFN50 3 , 474.16. found 474.2.

Therefore, this conceptually novel strategy might open impressive avenues to establish green and sustainable chemistry platforms.In my other articles, you can also check out more blogs about 1H-[1,2,3]Triazole-4-carboxylic acid.

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

Synthetic Route of 138624-97-2, New Advances in Chemical Research in 2021.In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. 138624-97-2, name is 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid, molecular formula is C10H9N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

A mixture of 1-benzyl-1,2,4-triazole-3-carboxylic acid (16 mg, 0.08 mmol), (6S)-6-amino-2,4-dimethyl-7,8-dihydro-6H-pyrazolo[4,3-b]azepin-5-one (15 mg, 0.08 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimidehydrochloride (15 mg, 0.08 mmol) and 1-hydroxybenzotriazole (10 mg, 0.08 mmol) in N,N-dimethylformamide (5 mL) was stirred at 30 C. for 2 h. The mixture was concentrated under reduce pressure. The residue was purified by RP-HPLC (acetonitrile 22-50%/0.05% hydrochloride acid in water) to afford 1-benzyl-N-[(6S)-2,4-dimethyl-5-oxo-7,8-dihydro-6H-pyrazolo[4,3-b]azepin-6-yl]-1,2,4-triazole-3-carboxamide (16.3 mg, 56%) as a white solid. 1H NMR (400 MHz, CD3OD) delta 8.81 (s, 1H), 7.84 (s, 1H), 7.38-7.33 (m, 5H), 5.51 (s, 2H), 4.73-4.68 (m, 1H), 3.93 (s, 3H), 3.31 (s, 3H), 3.00-2.90 (m, 2H), 2.50-2.45 (m, 1H), 2.27-2.22 (m, 1H). LCMS RT=1.088 min, m/z=380.2 [M+H]+. LCMS (5 to 95% acetonitrile in water+0.03% trifluoroacetic acid over 1.5 mins) retention time 1.088 min, ESI+ found [M+H]=380.2.

I am very proud of our efforts over the past few months and hope to 1-Benzyl-1H-1,2,4-triazole-3-carboxylic acid help many people in the next few years.

Reference:
Patent; Genentech, Inc.; Patel, Snahel; Hamilton, Gregory; (73 pag.)US2018/170927; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C2HBr2N3

In a 50 mL round bottomed flask, 3,5-dibromo-1H-1,2,4-triazole (Int-1, 1.50 g, 6.61 mmol) was dissolved in DMF (15 mL) and the solution was cooled to 0-5 C (ice bath). Sodium hydride (55% dispersion in mineral oil, 317 mg, 7.93 mmol) was added in portions and the resulting mixture was stirred for 30 min at 0-5 C and for 15 min at room temperature. After that, 1- fluoro-2-iodoethane (1.15 g, 537 mu, 6.61 mmol) was added dropwise at room temperature. The resulting mixture was stirred for 18 h at room temperature. After that, it was concentrated in vacuo, the residue was purified by column chromatography (silica gel, 70 g, eluting with ethyl acetate / n-heptane, gradient 0: 100 to 40:60 v/v) to yield the title compound as yellow oil (1.51 g, 84%). 1H NMR (CDCl3, 300 MHz): delta 4.46 (td, J = 4.7, 24.2 Hz, 2 H), 4.80 (td, J = 4.7, 46.3 Hz, 2 H). MS (ES+) m/z 271.9, 273.9, 275.9 [M+H, 2 Br isotopes].

The catalyzed pathway has a lower Ea, but the net change in energy that results from the reaction is not affected by the presence of a catalyst. In my other articles, you can also check out more blogs about 7411-23-6

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

Research speed reading in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 7170-01-6, name is 3-Methyl-1H-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. SDS of cas: 7170-01-6

Synthesis of 1-fluoro-2-methoxy-4-nitrobenzene (1023) To a stirred solution of 1-fluoro-2-methoxy-4-nitrobenzene (2.5 g, 14.60 mmol) in DMF (25 mL) under an argon atmosphere were added potassium carbonate (4 g, 29.20 mmol) and 3-methyl-1H-1,2,4-triazole (1.2 g, 14.60 mmol) at room temperature. The reaction mixture was stirred at 85 C. for 16 h in a sealed tube. After consumption of the starting material (monitored by TLC), the reaction mixture was diluted with water (100 mL) and extracted with EtOAc (2×50 mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was purified by column chromatography using 15-25% EtOAc:hexane to afford 1-fluoro-2-methoxy-4-nitrobenzene (1.2 g, 35%) as an off-white solid. 1H-NMR (CDCl3, 400 MHz): delta 8.87 (s, 1H), 8.10 (d, 1H), 8.00-7.97 (m, 2H), 4.10 (s, 3H), 2.50 (s, 3H); LCMS: 234.9 (M+1); (column; Ascentis Express C-18 (50×3.0 mm, 2.7 mum); RT 2.02 min. 0.025% Aq TFA+5% ACN: ACN+5% 0.025% Aq TFA; 1.2 mL/min); TLC: 30% EtOAc:hexane (Rf: 0.2).

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 7170-01-6, and we look forward to future research findings.

Reference:
Patent; FORUM Pharmaceuticals Inc.; Burnett, Duane A.; Bursavich, Matthew Gregory; McRiner, Andrew J.; (484 pag.)US2017/44182; (2017); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics