Category: 2058-74-4

2058-74-4, Name is 1-Methylisatin, 2058-74-4, belongs to indolines-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows.

General procedure: A mixture of isatin derivative (1.0mmol), activated methylene (1.0mmol), 1,3-diketones (1.0mmol), and Fe3O4SiO2-imid-PMAn catalyst (0.8mol%) was stirred at 70C in water or irradiated in a microwave oven at 200W for an appropriate period of time as indicated in Table 2. After completion of the reaction, as indicated by TLC, the reaction mixture was diluted with hot ethanol (10mL). The catalyst was removed by using a magnetic field and then the solvent was evaporated and the pure product was obtained by recrystallization from ethanol.

Statistics shows that 1-Methylisatin is playing an increasingly important role. we look forward to future research findings about 2058-74-4.

Reference:
Article; Esmaeilpour, Mohsen; Javidi, Jaber; Divar, Masoumeh; Journal of Magnetism and Magnetic Materials; vol. 423; (2017); p. 232 – 240;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

2058-74-4, A common heterocyclic compound, 2058-74-4, name is 1-Methylisatin, molecular formula is C9H7NO2, 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.

General procedure: A mixture of isatin derivatives (1a-1d, 1 mmol) oracenaphthoquinone (5, 1 mmol), methylene nitriles (2a,2b, 1 mmol), 1,3-dicarbonyl (3, 1 mmol), and 5 mg IG in3 cm3 H2O was stirred at 60 C for the mentioned timeshown in tables. Rapid conversion of reagents can beclearly confirmed by reaction color change. The progress ofthe reaction was monitored by TLC using EtOAc/n-hexane(1:3) as an eluent. Upon completion, the reaction mixturewas allowed to cool to room temperature and the precipitatewas obtained from the reaction mixture by filtration.The product 4a was dissolved in DMSO and the catalystwas separated by simple filtration. Pure products wereafforded by evaporation of the solvent under reduced pressure.

The synthetic route of 2058-74-4 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Javanshir, Shahrzad; Saghiran Pourshiri, Nassim; Dolatkhah, Zahra; Farhadnia, Mohammad; Monatshefte fur Chemie; vol. 148; 4; (2017); p. 703 – 710;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

The chemical industry reduces the impact on the environment during synthesis 2058-74-4, name is 1-Methylisatin, I believe this compound will play a more active role in future production and life. 2058-74-4

To the solution of Isatin 1a (1 mmol) in water (20 ml)at 60 C was added o-phenylenediamine 2 (1 mmol). The resulting mixture was stirred and beta-cyclodextrin(15 mol%) was added to the solution. The reaction progress was monitored using TLC by mixture of Hexane – EtOAc (6/4). The completion of the reactionas indicated by TLC in UV-chamber and vapour iodine chamber. The reaction mixture was cooled to room temperature and mixture was extracted by ethyl acetate(2 30mL) and dried over anhydrous sodium sulfate.Ethyl acetate removed in vacuum and crude product obtained. To recycle beta-cyclodextrin, acetone was added in the aqueous media, beta-cyclodextrin recovered. Pure product (6H-Indolo[2,3-b]quinoxaline3a) was obtained by silica gel column chromatography(Hexane/EtOAc) = (7/3 – 6/4) as solid.

The chemical industry reduces the impact on the environment during synthesis 2058-74-4. I believe this compound will play a more active role in future production and life.

Reference:
Article; Shivhare, Km Neha; Siddiqui; Supramolecular Chemistry; vol. 31; 1; (2019); p. 52 – 61;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

A common compound: 2058-74-4, name is 1-Methylisatin, belongs to indolines-derivatives compound, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below. 2058-74-4

General procedure: To a stirred mixture of 1-benzyl-1H-indole-2,3-dione (1a, 0.25 g,1.05 mmol), CuI (0.01 g, 0.05 mmol, 0.05 equiv), and phenylacetylene (2a, 0.11 g, 1.11 mmol, 1.05 equiv) in anhyd toluene (2 mL), DBU (0.032 g, 0.21 mmol, 0.2 equiv) was added at 25 C under a N2 atmosphere. Stirring was continued at this temperature until the starting material was completely consumed (TLC monitoring). After completion, the mixture was quenched with sat. aq NH4Cl (2mL) and extracted with EtOAc (2 ¡Á 5 mL). The combined organic layers were dried (anhyd Na2SO4) and evaporated under reduced pressure to dryness. The crude product thus obtained was purified by column chromatography (activated silica gel, 60-120 mesh, hexane-EtOAc) to afford pure 3aa as a white solid; yield: 0.35 g (97%); mp 177-179 C.

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, 2058-74-4, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Chouhan, Mangilal; Senwar, Kishna Ram; Kumar, Kapil; Sharma, Ratnesh; Nair, Vipin A.; Synthesis; vol. 46; 2; (2014); p. 195 – 202;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

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. 2058-74-4, name is 1-Methylisatin, This compound has unique chemical properties. The synthetic route is as follows., 2058-74-4

General procedure: A solution of N-methylisatin (322 mg, 2.0 mmol), phenylacethylene (306 mg, 3.0 mmol), CuI (76 mg, 0.4 mmol), and Cs2CO3 (978 mg, 3.0 mmol) in CH3CN (4.0 mL) was stirred at room temperature for 18 h. After aqueous extractive workup and column chromatographic purification process (CH2Cl2/EtOAc, 15:1) 1a was obtained as a pale yellow soild, 347 mg (66%).

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Reference:
Article; Roh, Hwa Jung; Kim, Su Yeon; Min, Beom Kyu; Kim, Jae Nyoung; Tetrahedron Letters; vol. 58; 1; (2017); p. 21 – 24;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem