Category: indolines-derivatives

Career opportunities within science and technology are seeing unprecedented growth across the world, and those who study chemistry or another natural science at university now have increasingly better career prospects. SDS of cas: 39755-95-8

General procedure: Fe 3 O 4 /COSbeta-CD-SO 3 H NPs (V) (0.02 g) were added to a mixture of isatin (1 mmol, 0.147 g), 5,5-dimethylcyclohexane-1,3-dione (dimedone) (1 mmol, 0.140g), and malononitrile (1mmol, 0.066g) in water (4mL). The mixture was magnetically stirred at 50C, for 20min. Reaction progress was monitored by TLC (n-hexane:EtOAc, 3:1). Upon reaction completion, the catalyst was removed by an external magnet, washed with water (10mL), and dried overnight to be ready for the next run. The formed solid was filtered off, washed with warm water, then dried to obtain pure products (0.328g, 98%).

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 39755-95-8.

Reference:
Article; Mohammadian, Narges; Akhlaghinia, Batool; Research on Chemical Intermediates; vol. 45; 10; (2019); p. 4737 – 4756;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

Adding a certain compound to certain chemical reactions, such as: 2058-72-2, name is 5-Bromo-1-methylindoline-2,3-dione, belongs to indolines-derivatives 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 2058-72-2, Synthetic Route of 2058-72-2

General procedure: A solution of chromones 1 (0.2 mmol), isatins 2 (0.3 mmol) and proline, or thioproline (0.5 mmol) in the 4.0 mL of EtOH at 80 C in oil bath for 3 h. After completion of the reaction, as indicated by TLC, the reaction solvent was directly removed, and purification by flash column chromatography (petroleum ether/EtOAc = 5:1~10:1) was carried out to furnish the corresponding products 3.

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Reference:
Article; Yue, Jing; Chen, Shuang; Zuo, Xiong; Liu, Xiong-Li; Xu, Sheng-Wen; Zhou, Ying; Tetrahedron Letters; vol. 60; 2; (2019); p. 137 – 141;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. , 39755-95-8

General procedure: The preparation was divided into two steps. Firstly, substituent indoline-2,3-dione (1 equiv) was dissolved in ethanol (10 mL), hydrazine hydrate (2 mL) was added. The reaction mixture was refluxed with magnetic stirring for 3 h and cooled to 0 C, then sodium hydroxide (3 equiv) was added, refluxed for 0.5 h and cooled to room temperature, then 150 mL water was added. The mixture was acidified by adding 2 N hydrochloric acid to pH 2, and extracted twice with dichloromethane. The organic filtrate was washed twice with brine, dried (Na2SO4), and then concentrated to give corresponding indolin-2-one by high-vacuum drying. Secondly, a mixture of the corresponding indolin-2-one (1 equiv) and furan-2-carbaldehyde (1 equiv) in ethanol was added two drops of piperidine and refluxed with magnetic stirring for 5 h. After the mixture cooled, the precipitate was filtered, washed with cold ethanol, dried, and recrystallized from methanol to afford the terminal product.

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Reference:
Article; Zhong, Ye; Xue, Mengzhu; Zhao, Xue; Yuan, Jun; Liu, Xiaofeng; Huang, Jin; Zhao, Zhenjiang; Li, Honglin; Xu, Yufang; Bioorganic and Medicinal Chemistry; vol. 21; 7; (2013); p. 1724 – 1734;,
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Indoline | C8H9N – PubChem

Related Products of 1074-82-4,When developing chemical systems it’s of course important to gain a deep understanding of the chemical reaction process.

(0331) A mixture of potassium phthalimide (100.0 g, 539.9 mmol, 1.0 equiv.), potassium carbonate (11.2 g, 81.0 mmol, 0.15 equiv.) and N,N-dimethylformamide (DMF) (200 mL) is treated with chloroacetone (47.3 mL, 54.9 g, 593.9 mmol, 1.1 equiv.) at a rate to control the internal temperature at not more than 40 C. After the addition is complete, the reaction mixture is stirred for about 12 hours at about 20-25 C. Water (333 mL) is charged to the reaction mixture at a rate to control the internal temperature at not more than 30 C. The mixture is stirred at about 20-25 C. for about 1 hour, and then the mixture is filtered. The filter cake is washed with water (200 mL), and the product is dried at about 70-80 C. under vacuum with a nitrogen flow for about 12 hours. The product phthalimidoacetone (VII-j) is obtained as a white solid (90.2 g, 97.3 wt. % purity, 80% yield).

The design and synthesis of related molecules that are more effective, more selective, and less toxic than aspirin are important objectives of biomedical research.Keep reading other articles of Potassium 1,3-dioxoisoindolin-2-ide.

Reference:
Patent; Boehringer Ingelheim International GmbH; DANG, Mai Thi Quynh; HAMPEL, Thomas Armin; KOCH, Sandra; NORDSTROM, Fredrik Lars; REEVES, Jonathan Timothy; REICHEL, Carsten; SCHOERER, Marvin; STANGE, Christian; VOLCHKOV, Ivan N.; Zhong, Li; ZIMMERMANN, Uwe Johannes; (38 pag.)US2018/251427; (2018); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

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. 7147-90-2, name is 5-Chloroisoindoline-1,3-dione belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 5-Chloroisoindoline-1,3-dione

To a solution of 5-chloro-isoindole-l,3-dione (5.0 g, 27.5 mmol) in DCM (200 mL) was added ethylmagnesium chloride (2 M in THF, 41.3 mL) dropwise at 0 C. After the addition, the mixture was allowed to stir at 0 C for 3 hours before it was quenched with satd. aq. NH4C1 solution. After extraction with DCM, the organic layer was washed with brine, dried over anhy. Na2S04, filtered and concentrated in vacuo to give a crude product containing a mixture of two regioisomers (5.82 g, 100%). MS: 212.0 (M+H+).

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Reference:
Patent; F. HOFFMANN-LA ROCHE AG; AEBI, Johannes; AMREIN, Kurt; CHEN, Wenming; HORNSPERGER, Benoit; KUHN, Bernd; LIU, Yongfu; MAERKI, Hans P.; MAYWEG, Alexander V.; MOHR, Peter; TAN, Xuefei; WANG, Zhanguo; ZHOU, Mingwei; WO2013/79452; (2013); A1;,
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. 239463-85-5, name is (R)-3-(5-(2-Aminopropyl)-7-cyanoindolin-1-yl)propyl benzoate (2R,3R)-2,3-dihydroxysuccinate, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of (R)-3-(5-(2-Aminopropyl)-7-cyanoindolin-1-yl)propyl benzoate (2R,3R)-2,3-dihydroxysuccinate

To a 100mL three-necked flask fitted with a stirring blade, a thermometer, acondenser, indoline derivative tartrate salt (purity99.9%) 5.0 g, butyl acetate 15 mL and separately adjusted 20% aqueous potassiumcarbonate solution 14mL were added & stirred, and warmed in the vicinity of45 & stirred, and it was made sure that the solid was dissolved, to obtain aprimary reaction solution.To the primary reaction liquid obtained in theneutralization step, 1- (2-methanesulfonyloxy-ethoxy) -2-(2,2,2-trifluoroethoxy) benzene 3.67g was added as N- alkylating agent and stirred,after stirring for 18 hours under heating to reflux, then cooled to about 30 C, to obtain a secondary reaction solution (reaction conversion rate 95.4%).The aqueous layer was removed from the secondary reaction mixture, the resulting organic layer was washed successively with saturated aqueous sodiumbicarbonate solution 10 mL and 10% aqueous sodium chloride 10 mL, to obtain butylacetate solution (purity 81.0 %, dialkyl body content 9.4%) of N-alkylated indoline derivative.

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Reference:
Patent; TOKUYAMA CORPORATION; SHIMIZU, TOMOHIRO; TANAKA, KENJI; (18 pag.)JP2016/3183; (2016); A;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

With the volume and accessibility of scientific research increasing across the world, it has never been more important to continue building the reputation for quality and ethical publishing we’ve spent the past two centuries establishing., Application of 1168150-46-6

General procedure: A mixture of intermediate (3a, 3b, 6a, 6b, 10a, 10b, 11a-d, and14a-g, 1.5 mmol) and methyl (E)-3-(methoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate (1.5 mmol) in methanol (10 mL) wasstirred under reflux for 5-10 h. When TLC showed the completionof the reaction, the solution was cooled to room temperature. Theprecipitate was filtered off to give a crude product, which wasrecrystallized from methanol to provide the target compounds.

The synthetic route of 1168150-46-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Qin, Mingze; Tian, Ye; Sun, Xiaoqing; Yu, Simiao; Xia, Juanjuan; Gong, Ping; Zhang, Haotian; Zhao, Yanfang; European Journal of Medicinal Chemistry; vol. 139; (2017); p. 492 – 502;,
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Indoline | C8H9N – PubChem

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. 496-12-8, name is Isoindoline, A new synthetic method of this compound is introduced below., Related Products of 496-12-8

General procedure: In an oven-dried RB flask, 4-chloro-2-phenyl-1H-pyrrolo[3,2-c]pyridine 6b (250 mg, 1.09 mmol) and formaldehyde solution, 37 wt.% in H2O (0.2 mL, 2.73 mmol) were mixed in glacial acetic acid(5 mL). N-methyl piperazine (273.8 mg, 2.73 mmol, CAS 109-01-3)was added drop wise at 0C. The resulting mixture was stirred atroom temperature for 12 h. After completion of the reaction, the excess solvent was evaporated to dryness under reduced pressure.The residue was neutralized with 10% NaHCO3 solution, the solidf ormed was collected by filtration, washed with water and dried.The crude product was purified by silica gel column chromatographyto provide title compound as an off-white solid (326.3 mg,88%).

In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to navigate research efforts intended to implement such knowledge in the development of new catalytic chemistries. Read on for other articles about 496-12-8.

Reference:
Article; Jose, Gilish; Suresha Kumara, Tholappanavara H.; Sowmya, Haliwana B.V.; Sriram, Dharmarajan; Guru Row, Tayur N.; Hosamani, Amar A.; More, Sunil S.; Janardhan, Bhavya; Harish; Telkar, Sandeep; Ravikumar, Yalegara Siddappa; European Journal of Medicinal Chemistry; vol. 131; (2017); p. 275 – 288;,
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Indoline | C8H9N – PubChem

Career opportunities within science and technology are seeing unprecedented growth across the world, and those who study chemistry or another natural science at university now have increasingly better career prospects. Reference of 22190-33-6

A solution of the title A compound, 5-bromo-2, 3-DIHYDRO-1 H-INDOLE (15. 75 g, 79.54 mmol) in 200 mL acetonitrile and 200 mL dichloromethane is treated with DMAP (0.971 g, 7.95 mmol) and di-t-butyl dicarbonate (19.14 g, 87.49 MMOL). The solution is stirred at RT for 16 h. The mixture is diluted with 300 mL dichloromethane and washed twice with 1 N aqueous HCI and once with brine, dried over anhydrous MGS04, and concentrated to afford 5-bromo-2,3- dihydro-indole-1-carboxylic acid tert-butyl ester.

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Reference:
Patent; NOVARTIS AG; NOVARTIS PHARMA GMBH; WO2004/65351; (2004); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem

Computed Properties of C8H6BrNO, Chemistry built the modern world, from the materials that make up the everyday objects around us, the batteries in our devices and cleaning products that help to maintain sanitation.

A mixture of 6-bromoisoindolin-1-one (1.0 g, 4.72 mmol), Pd(dppf)Cl2 (104 mg, 0.14 mmol), K2CO3 (1.96 g, 14.2 mmol) and 3-pyridylboronic acid (580 mg, 4.72 mmol) in dioxane (45 mL) and water (5 mL) was heated to 100 C. overnight. After cooling, the mixture was poured into water and extracted with EtOAc (3×100 mL). The combined organic fractions were washed with brine and dried over sodium sulfate. The solvent was evaporated and the residue was purified by column chromatography on silica gel (1%-50% EtOAc in pet. ether) to afford 85B (500 mg, 50% yield) as an off-white solid: 1H NMR (400 MHz, DMSO-d6) delta 8.94 (d, J=2 Hz, 1H), 8.67 (s, 1H), 8.60 (dd, J=4.8 Hz, 1.2 Hz, 1H), 8.16-8.13 (m, 1H), 7.96-7.94 (m, 2H), 7.71 (d, J=8.8 Hz, 1H), 7.52-7.49 (m, 1H), 4.44 (s, 2H); ESI m/z 211.0 [M+H]+.

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Reference:
Patent; Seal Rock Therapeutics, Inc.; BROWN, Samuel David; US2018/291002; (2018); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem