Day: August 31, 2021

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. 1455-77-2, name is 3,5-Diamino-1,2,4-triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Safety of 3,5-Diamino-1,2,4-triazole

3-Amino-6-chloro-1,2,4,5-tetrazine (4) (1:00 g, 7.60mmol) was dissolved in a mixture of 16:0 mL acetonitrile and 2:0 mL water. To the stirred solution 3,5-diamino-1,2,4-triazole (1:51 g, 15:2 mmol) was added. The mixturewas heated to 90 °C and refluxed for 16 h. The precipitatewas filtered and washed with water and acetonitrile. Theproduct (9) was recrystallized from water. After standing overnight at ambient temperature, the crystals were filteredand dried. 1:33 g (5:78 mmol; 76percent) of red needles of 9 were yielded. ? Elemental analysis (C4H10N10O2, 230.19)exp. (calcd.) in percent: C 20.62 (20.87); H 4.18 (4.38); N 60.37(60.85). ? DSC (5 C min1, ° C): Tdec:: c 314 °C. ? 1H NMR([D6]DMSO, 25 °C, ppm): d =5.38 (s, 2H, NH2 triazole),6.94 (s, 2H, NH2 triazole), 7.83 (s, 2H, NH2 tetrazine).? 13C NMR ([D6]DMSO, 25 °C, ppm): d =155.5 (1C,C-NH2 triazole), 156.3 (1C, C-NH2 triazole), 162.7 (1C,C-tetrazine), 162.9 (1C, C-tetrazine). ? MS ((+)-DEI): m=z = 194.1 (100) [C4H6N10]+, 124.1 (43) [C3H4N6]+,99.1 (5) [C2H5N2]+, 82.1 (19) [C2H2N5]+. ? Raman: n(cm-1)=3250 (2), 3184 (5), 1648 (7), 1570 (5), 1555 (12), 1526 (5), 1477 (90), 1399 (4), 1371 (8), 1335 (6), 1158 (10),1027 (18), 866 (100), 828 (4), 669 (7), 580 (9), 456 (5), 356(4), 345 (7), 321 (6). ? Sensitivity data: IS: > 40 J; FS: >360 N; ESD: > 1 J.

In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to serve as an indispensable tool to navigate research efforts intended to model. Read on for other articles about 1455-77-2.

Reference:
Article; Klapoetke, Thomas M.; Preimesser, Andreas; Stierstorfer, Joerg; Zeitschrift fur Naturforschung, B: Chemical Sciences; vol. 68; 12; (2013); p. 1310 – 1320;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 27996-86-7, New Advances in Chemical Research in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 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: A mixture of azolyl ketone (1a/1b) (1 mmol) and aryloxy benzaldehyde (2a-f) (1 mmol) were dissolved in 10% NaOH-EtOH (5 mL), it was stirred at room temperature for 9-10 h. After completion, 5 mL water was added to the reaction mixture. The separated solid compound was filtered and washed with water. It was purified by crystallization with methanol/chloroform or basic alumina column chromatography to give the desired compounds (3-13).The compounds (16-31) were prepared by the reaction of their corresponding aldehyde and ketone partners.

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 4-[1,2,4]Triazol-1-yl-benzaldehyde is helpful to your research.

Reference:
Article; Marrapu, Vijay K.; Chaturvedi, Vinita; Singh, Shubhra; Singh, Shyam; Sinha, Sudhir; Bhandari, Kalpana; European Journal of Medicinal Chemistry; vol. 46; 9; (2011); p. 4302 – 4310;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 288-36-8, name is 1H-1,2,3-Triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 288-36-8

A solution of 2-iodo-5-methylbenzoic acid (4.0 g, 15.3 mmol) in DMF (10 mL) was treated with 1,2,3-triazole (2.1 g, 30.5 mmol), CsCO3 (9.95 g, 30.5 mmol), CuI (0.145 g, 0.76 mmol) and trans-N,N’-dimethylcyclohexane-l,2-diamine (0.43 g, 3.05 mmol). The mixture was heated at 120 0C for 10 min in a microwave reactor. The reaction was cooled to room temperature, diluted with water, and washed with EtOAc. The aqueous phase was acidified with IN HCl and extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and concentrated. The residue was purified by gradient elution on SiO2 (0 to 10% MeOH in DCM with 0.1% AcOH) to give the faster eluting 2-(2H-l,2,3-triazol~2-yl)-5-methylbenzoic acid, followed by the undesired regioisomer isomer, I -(2H- 1 ,2,3-triazoI-2-yl)-5-methylbenzoic acid. A solution of the acid (3.56 g, 17.52 mmol) in 150 mL of DCM was stirred and cooled to O0C. The solution was treated with oxalyl chloride (1.9 mL, 21.9 mmol) and DMF (68 muL, .878 mmol). The solution was slowly warmed to room temperature and stirred overnight. Solvent was concentrated and the resulting solid was azetroped with DCM and concentrated to provide A-7 as a yellow solid.

We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 1H-1,2,3-Triazole ,and how the biochemistry of the body works.

Reference:
Patent; MERCK SHARP & DOHME CORP.; BRESLIN, Michael, J.; COLEMAN, Paul, J.; COX, Christopher, D.; SCHREIER, John, D.; WHITMAN, David, B.; WO2010/48010; (2010); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Electric Literature of 4922-98-9, New Advances in Chemical Research 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. 4922-98-9, name is 5-Phenyl-1H-1,2,4-triazol-3-amine, molecular formula is C8H8N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

STEP E; A reaction mixture of compound 37-4 (28.4 mg, 0.1 mmol) and 3-phenyl-1 H- 1 ,2,4-tpiazol-5-amine (16 mg, 0.1 mmol) in ethanol was stirred at 80 0C for overnight. The product was purified using reverse phase HPLC. The two pure enantiomers (37-6 and 37-7) were chirally separated from 37-5 by chiral cell column (20 micron, 50 X 500 mm, 100percent MeOH with 0.1percent TFA as mobile phase at 80 mL/min).

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 5-Phenyl-1H-1,2,4-triazol-3-amine.

Reference:
Patent; SCHERING CORPORATION; SHIPPS, JR., Gerald, W.; CHENG, Cliff, C.; HUANG, Xiaohua; ACHAB, Abdelghani, Abe; ORTH, Peter; VOIGT, Johannes, H.; SOUCY, Kyle, Ann; WO2010/56631; (2010); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Related Products of 423165-07-5, New Advances in Chemical Research 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. 423165-07-5, name is exo-3-(3-Isopropyl-5-methyl-4H-1,2,4-triazol-4-yl)-8-azabicyclo[3.2.1]octane, molecular formula is C13H22N4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

Compound (I) (3.09 g) as prepared in Example 5, compound (II) (2.34 g) as prepared in Example 4, and THF (30 g) were mixed in a round bottom flask. After the mixture was cooled in an ice bath and reacted for 10 min, HOAc (1.5 g) was added into the mixture and reacted for another 10 min. Subsequently, NaBH(OAc)2 (3.2 g) was added into the reaction mixture to reduce intermediate to crude product. The whole reaction mixture was quenched with 15% NaOH to pH >10. The organic phase was collected by phase separation, and concentrated under reduced pressure. Maraviroc (4.6 g) in a form of white powder was obtained from the concentrate by crystallization with EA.

By the way, if you are interested in learning more fun chemistry with your kids, get your hands into one chemistry set now, and start enjoying the best part of chemistry: experiments about exo-3-(3-Isopropyl-5-methyl-4H-1,2,4-triazol-4-yl)-8-azabicyclo[3.2.1]octane.

Reference:
Patent; SCI Pharmtech, Inc.; Wang, Heng-Yen; Kao, Chen-Yi; US2019/248782; (2019); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

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. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Formula: C3H3N3O2

1 .92 g (50 % purity, 3.00 mmol) 8-{[2-(trifluoromethyl)phenyl]sulfonyl}-3,8- diazabicyclo[3.2.1 ]octane (Intermediate 3) were reacted in analogy to example 1 , procedure 1 .2 with 0.678 g (6 mmol, 2 eq) 1 H-1 ,2,3-triazole-5-carboxylic acid to yield after work-up and purification 792 mg (62%) of the title compound 1 H-1 ,2,3-triazol-4- yl[(8-{[2-(trifluoromethyl)phenyl]sulfonyl}-3,8-diazabicyclo[3.2.1 ]oct-3-yl]methanone. (0504) LC-MS (Method 1 ): Rt = 0.96 min; MS (ESIpos): m/z = 416 [M+H]+ (0505) 1 H-NMR (400 MHz, DMSO-d6) delta [ppm]: 1 .602 (2.82), 1 .629 (2.52), 1 .689 (12.16), 1 .980 (0.53), 2.073 (1 .54), 2.327 (1 .17), 2.669 (1.20), 2.673 (0.87), 2.934 (3.84), 2.964 (4.10), 3.379 (5.16), 4.293 (5.08), 4.355 (9.64), 4.386 (4.07), 4.519 (0.72), 7.890 (1 .47), 7.908 (5.87), 7.913 (7.23), 7.920 (16.00), 7.927 (6.81 ), 7.932 (7.53), 7.936 (7.64), 7.950 (2.37), 7.955 (1 .54), 8.018 (0.79), 8.030 (7.57), 8.037 (6.89), 8.053 (5.61 ), 8.295 (7.27), 8.31 1 (6.51 ), 8.317 (6.21 ), 15.524 (0.53).

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1H-[1,2,3]Triazole-4-carboxylic acid, in my other articles.

Reference:
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; KOPPITZ, Marcus; SIEBENEICHER, Holger; STEUBER, Holger; TER LAAK, Antonius; NUBBEMEYER, Reinhard; ROTTMANN, Antje; IRLBACHER, Horst; BADER, Benjamin; PETERS, Michaele; WAGENFELD, Andrea; TEREBESI, Ildiko; (123 pag.)WO2017/202817; (2017); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

New discoveries in chemical research and development 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. 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. HPLC of Formula: C3H5N3

In a 25 ml RBF, a mixture of 5-chloro-2-fluorobenzaldehyde (505 mg, 3.09 mmol), 3-methyl-1H-1,2,4-triazole(270 mg, 3.09 mmol), Cs2CO3 (1007 mg, 3.09 mmol) in DMSO(6179 ul) was heated at 45 C for 4 hrs and stirred at rt overnight. The reaction mixture was diluted with EtOAc and washed with water. The combined organic phase was washed with brine, dried over MgSO4, filtered,concentrated and purified by flash chromatography to yield 74A as white solid product (140 mg, 20%).

If you are hungry for even more, make sure to check my other article about 7170-01-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; YANG, WU; CORTE, JAMES R; GILLIGAN, PAUL J; PINTO, DONALD J P; EWING, WILLIAM R; DILGER, ANDREW K; WANG, YUFENG; FANG, TIANAN; PABBISETTY, KUMAR B; SMITH II, LEON M; (307 pag.)JP2015/528022; (2015); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Synthetic Route of 61-82-5, New Advances in Chemical Research in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 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: 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.

The potential utility of systematic synthetic strategy will be applicable to efficient generations of chemical libraries of compounds to find ‘hit’ molecules.Read on for other articles about 1H-1,2,4-Triazol-5-amine, hurry up and to see.

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

Synthetic Route of 1533519-85-5, 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, 1533519-85-5, name is Methyl 2-((4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-yl)thio)acetate, molecular formula is C18H17N3O2S, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

For the 250 ml reaction bottle B join the previous step product (4 g, 0.0118 muM), tetrahydrofuran (30 ml), tetramethyl piperidine (TEMPO, 0.2 g, 0.1 eq), oil bath 30 – 32 C heating and stirring, to dissolve to clarify. Batch by adding N – bromo succinimide (NBS, 3.2 g, 0 . 018 muM, 1.5 eq), temperature control not more than 35 C. Canada finishes, thermal insulation 30 – 32 C reaction 3 h. Detection of the raw material after the reaction is complete, stop heating, ice bath cooling. To be in reaches warm 0 – 5 C, batch by adding sodium sulfite aqueous solution quenching reaction, ethyl acetate extraction, anhydrous sodium sulfate drying, filtering, and concentration, drying, and the produced intermediate C crude product can be directly used for the next step reaction. Analysis of the sample through the column chromatography (200 – 300 mesh silica gel, eluent is dichloromethane: methanol=15:1) purification, to obtain white solid C.

The potential utility of systematic synthetic strategy will be applicable to efficient generations of chemical libraries of compounds to find ‘hit’ molecules.Read on for other articles about Methyl 2-((4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-yl)thio)acetate, hurry up and to see.

Reference:
Patent; Zhejiang Jingxin Pharmaceutical Co., Ltd.; Shanghai Jingxin Bio-pharmaceutical Co., Ltd.; Dai Xiangqian; Huang Yue; (17 pag.)CN107098866; (2017); A;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Research speed reading in 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic. 162848-16-0, name is 4-[1,2,4]Triazol-1-yl-benzoic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C9H7N3O2

A mixture of MIICl2 (0.25mmol) (M=Zn(1), Cd(2)), ligand Hcpt (0.5mmol), and DMF (10mL) was heated at room temperature to 150C for three days in a 25mL Teflonlined stainless-steel autoclave and was then cooled to room temperature at 5C/h-1 to obtain corresponding colorless block crystals 1-2 (yield: 53% for 1 and 49% for 2 based on MII). Anal.Calcd for 1 C18H12N6O4Zn (441.71): C, 48.90; H, 2.72; N, 19.02%. Found: C, 48.86; H, 2.75; N, 19.07%. IR frequencies (KBr, cm-1): 3443 (w), 3131 (w), 1682 (s), 1608 (s), 1568 (m), 1542 (m), 1504 (m), 1492 (m), 1462 (w), 1427 (w), 1384 (s), 1297 (s), 1219 (m), 1142 (s), 1045 (s), 1068 (m), 1002 (w), 975 (m), 955 (m), 860 (m), 809 (w), 771 (m), 690 (w), 670 (m), 638 (w), 559 (w), 538 (w), 516 (w). Anal.Calcd for 2 C24H26O6N8Cd (634.94): C, 45.36; H, 4.09; N, 17.64%. Found: C, 45.35; H, 4.11; N, 17.69%. IR frequencies (KBr, cm-1): 3425(mb), 2918(w), 1683(m), 1650(m), 1607(s), 1523(s), 1476(m), 1412(m), 1385(s), 1265(s), 1203(m), 1181(w), 1062(w), 858(m), 784(m), 722(w), 653(w), 619(w), 535(w), 524(w).

In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to serve as an indispensable tool to navigate research efforts intended to model. Read on for other articles about 162848-16-0.

Reference:
Article; Li, Teng; Liu, Xiang; Huang, Zhuang-Peng; Lin, Qiang; Lin, Chu-Ling; Zhan, Qing-Guang; Xu, Xiang-Dong; Cai, Yue-Peng; Inorganic Chemistry Communications; vol. 39; (2014); p. 70 – 74;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics