Tag: M.W=100-200

Quality Control of 5-Nitroindolin-2-one, The chemical industry reduces the impact on the environment during synthesis 20870-79-5, name is 5-Nitroindolin-2-one, I believe this compound will play a more active role in future production and life.

The commercial 5-nitroindolin-2-one (1.00 g, 5.61 mmol) was hydrogenated in EtOH (70 mL) in the presence of 10% Pd-C (315 mg, 2.97 mmol) for 4 h. Then the catalyst was filtered off through Celite, the Celite rinsed with additional EtOH and the solution was evaporated, to give 17 as a brown solid (698 mg, 4.71 mmol, 84% yield). 1H NMR (CD3OD): delta 3.43 (s, 2H, CH2); 6.63-6.65 (m, 2H, Ar); 6.73-6.74 (m, 1H, Ar) ppm. Anal. (C8H8N2O) Calc%: C 64.85, H 5.44, N 18.91; Found%: C 65.03, H 5.49, N 18.83.

As always, wish you can browse a selection of our May HOT articles below about 5-Nitroindolin-2-one.

Reference:
Article; Sestito, Simona; Nesi, Giulia; Daniele, Simona; Martelli, Alma; Digiacomo, Maria; Borghini, Alice; Pietra, Daniele; Calderone, Vincenzo; Lapucci, Annalina; Falasca, Marco; Parrella, Paola; Notarangelo, Angelantonio; Breschi, Maria C.; Macchia, Marco; Martini, Claudia; Rapposelli, Simona; European Journal of Medicinal Chemistry; vol. 105; (2015); p. 274 – 288;,
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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. 1127-59-9, name is 7-Methylindoline-2,3-dione, A new synthetic method of this compound is introduced below., 1127-59-9

General procedure: A mixture of 1H-pyrazol-5-amin (1 mmol), isatin (1 mmol) and enolizable C ? H activated compound (1 mmol) in NDDES (1.5 ml)was stirred under microwave irradiation at 60°C for an appropriate time. The progress of the reaction was monitored by TLC. After completion of the reaction, the mixture was cooled to room temperature and cold water was added to the reaction mixture. The precipitated solid was isolated by filtration, washed with water and purified by recrystallization from ethanol.

Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. Keep reading other articles of 1127-59-9.

Reference:
Article; Zhang, Wei-Hong; Chen, Meng-Nan; Hao, Yi; Jiang, Xin; Zhou, Xiao-Lin; Zhang, Zhan-Hui; Journal of Molecular Liquids; vol. 278; (2019); p. 124 – 129;,
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Indoline | C8H9N – PubChem

These common heterocyclic compound, 222036-66-0, name is 5-Aminoisoindolin-1-one, 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. name: 5-Aminoisoindolin-1-one

Synthesis of 5-((9H-purin-6-yl)amino)isoindolin-1-one (Cpd. No. 1F) A mixture of 6-chloro-9H-purine (1, 0.15 g, 0.97 mmol), 5-aminoisoindoline-1-one (2, 0.14 g, 0.97 mmol) and (1S)-(+)-camphor-10-sulfonic acid (0.27 g, 1.16 mmol) in isopropanol (10 mL) was heated in a sealed tube at 100° C. for 4 h. After completion of the reaction, the mixture was concentrated. The obtained solid was filtered and re-crystallized from ethanol and isopropanol to afford 5-((9H-purin-6-yl)amino)isoindolin-1-one (Cpd. No. 1F) as off-white solid. Yield: 0.15 g, 58percent; MS (ESI) m/z 267 [M+1]+; 1H NMR (400 MHz, DMSO-d6) delta 11.01 (s, 1H), 8.66 (s, 2H), 8.44 (s, 1H), 8.31 (d, J=1.9 Hz, 1H), 7.99 (dd, J=8.3, 1.8 Hz, 1H), 7.67 (d, J=8.3 Hz, 1H), 4.40 (s, 2H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 222036-66-0, its application will become more common.

Reference:
Patent; eFFECTOR Therapeutics, Inc.; Sprengeler, Paul A.; Reich, Siegfried H.; Ernst, Justin T.; Webber, Stephen E.; Shaghafi, Mike; Murphy, Douglas; Tran, Chinh; (131 pag.)US10112955; (2018); B2;,
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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., name: Isoindoline

To a solution of 3,4-(methylenedioxy)aniline (150 mg, 1.09 mmol) in dry DCM (4 mL) was added dropwise phenyl chloroformate (0.138 ml, 1.09 mmol) and triethylamine (0.153 ml, 1.09 mmol). After the reaction mixture was stirred at r.t for 8 hr., isoindoline (0.123 ml, 1.09 mmol) and triethylamine (0.153 ml, 1.09 mmo) were added, and the reaction mixture was stirred overnight. The solvent was then removed under reduced pressure, and the residue was purified by chromatographed on silica gel (EtOAC/Hexane: 1:3) to give the title compound (185 mg, 60%) as a white solid: m.p:165-166 C. 1H NMR (CDCl3, 500 MHz): 4.82 (s, 4H); 5.93 (s, 2H); 6.20 (s, 1H); 6.73 (s, 2H); 7.17 (s, 1H); 7.30 (m, 4H). MS (MH+, 283).

Hope you enjoy the show about 496-12-8.

Reference:
Patent; Tachdjian, Catherine; Patron, Andrew P.; Adamski-Werner, Sara L.; Bakir, Farid; Chen, Qing; Darmohusodo, Vincent; Hobson, Stephen Terrence; Li, Xiaodong; Qi, Ming; Rogers, Daniel Harry; Rinnova, Marketa; Servant, Guy; Tang, Xiao-Qing; Zoller, Mark; Wallace, David; Xing, Amy; Gubernator, Klaus; US2005/84506; (2005); A1;,
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Reference of 3484-35-3, 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.

General procedure: To a one-neck round-bottom flask equipped with magnetic stirringwas added 6-chloro-2-indolinone (2a, 1.00 g, 6.0 mmol),vinamidinium salt 324 (2.02 g, 12.0 mmol), Et3N (1.82 g, 18.0mmol), and DMF (10 mL). The mixture was stirred for 20 h atr.t., after the reaction was complete (monitored by TLC,EtOAc/MeOH = 20:1), 30 mL EtOAc and 30 mL water was added,then the aqueous layer was extracted with 30 mL EtOAc. Thecombined EtOAc layer was washed with sat. NaCl solution (15mL) and water (15 mL) then dried over Na2SO4. After filteringthe desiccant, the solvent was concentrated under vacuum to avolume of about 5 mL. The mixture was titrated with 15 mL nhexaneto give a yellow precipitant, the solid was filtered, anddried under vacuum to give 4a (1.34 g, yield 88%), a yellowpowder, which was used in the next step without further purification;mp > 250 C.

I am very proud of our efforts over the past few months and hope to 3484-35-3 help many people in the next few years.

Reference:
Article; Tian, Shaixiao; Mao, Yu; Jiang, Yongjun; Xu, Guangyu; Synlett; vol. 29; 7; (2018); p. 949 – 953;,
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COA of Formula: C10H7NO3, Having gained chemical understanding at molecular level, chemistry graduates may choose to apply this knowledge in almost unlimited ways, as it can be used to analyze all matter and therefore our entire environment.

To a stirred solution of 9 (0.38mmol) in MeOH (2mL), NH4OAc (3.76mmol), 2-(1,3-dioxoisoindolin-2-yl)acetaldehyde (10) (0.56mmol), and MTBE (2mL) were added at room temperature. The mixture was heated at 50°C for 10h and then cooled to room temperature. The pH of the reaction mixture was adjusted to 8 with saturated aqueous NaHCO3 solution. The reaction mixture was extracted with EtOAc (2×35mL), and the combined organic layer was washed with water (10mL) and brine (10mL). The EtOAc solution was dried over anhydrous Na2SO4, filtered, and evaporated to dryness under reduced pressure. The residue was purified by MPLC on silica gel using MeOH/ CH2Cl2 (1:20) as eluent to give the titled compound as a yellow solid. Yield 67percent; mp 262?263°C; IR (KBr) 3076, 2928, 1716, 1391cm?1; 1H NMR (400MHz, CDCl3/CD3OD) delta 2.51 (s, 3H), 5.00 (s, 2H), 7.00 (d, 1H, J=7.6Hz), 7.10 (d, 1H, J=8.0Hz), 7.42 (t, 1H, J=7.8Hz), 7.67 (d, 1H, J=9.2Hz), 7.69?7.72 (m, 2H), 7.74 (dd, 1H, J=9.2, 1.6Hz), 7.83?7.86 (m, 2H), 8.28 (s, 1H), 8.87 (br s, 1H); 13C NMR (100MHz, CDCl3) delta 24.6, 35.5, 116.3, 117.7, 122.2, 122.8, 123.9 (2C), 128.0, 128.9, 131.7, 132.1 (2C), 134.2, 134.6 (2C), 137.3, 143.3, 147.7, 150.0, 154.5, 159.1, 168.1 (2C); HRMS-ESI: m/z [M+H]+ calcd for C24H18N7O2: 436.1516, found 436.1530.

We are continuing to develop the new Research Structures and WebCSD systems in response to feedback from you, our user community, so we would love to hear what you think about the enhanced search functionality and any suggestions you might have about 2913-97-5.

Reference:
Article; Jin, Cheng Hua; Krishnaiah, Maddeboina; Sreenu, Domalapally; Subrahmanyam, Vura Bala; Park, Hyun-Ju; Park, So-Jung; Sheen, Yhun Yhong; Kim, Dae-Kee; Bioorganic and Medicinal Chemistry; vol. 22; 9; (2014); p. 2724 – 2732;,
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Indoline | C8H9N – PubChem

Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation., COA of Formula: C10H7NO2

3-Amino-5-bromobenzotrifluoride (2.00 g, 8.332 mmol) was dissolved in acetonitrile (80 mL) and the solution was degassed with nitrogen. Pd(OAc)2 (94 mg, 0.417 mmol), tris(2- methylphenyl)phosphine (254 mg, 0.833 mmol) and triethylamine (3.5 mL, 25.0 mmol) were added and the bright orange solution was allowed to stir at room temperature for 1 h. To this solution was added N-vinylphthalimide (1.73 g, 10.0 mmol) and the reaction mixture was degassed and was heated at reflux for 16 h. The reaction was filtered through a Celite pad. The filtrate was washed with water and brine, was dried over magnesium sulfate, was filtered and was concentrated. The residue was purified by column chromatography (eluted with hexanes:ethyl acetate = 3 : 1 to 2: 1 to 1 : 1) to afford 2- {(E)-2-[3-amino-5- (trifluoromethyl)phenyl]vinyl}-lH-isoindole-l,3(2H)-dione (2.02 g, 73% yield) as a yellow solid. XH NMR (400 MHz, CDC13): delta 7.92-7.90 (m, 2H), 7.78-7.76 (m, 2H), 7.59 (d, 1H), 7.35 (d, 1H), 7.09 (s, 1H), 6.91 (s, 1H), 6.79 (s, 1H), 3.88 (-NH2; br s, 2H).

This is the end of this tutorial post, and I hope it has helped your research about 3485-84-5.

Reference:
Patent; EXELIXIS, INC.; ANAND, Neel, Kumar; BROWN, S., David; TESFAI, Zerom; ZAHARIA, Cristiana, A.; WO2012/37132; (2012); A1;,
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Indoline | C8H9N – PubChem

In chemical reaction engineering, simulations are useful for investigating and optimizing a particular reaction process or system., Application of 21857-45-4

To a 100 mL round- bottomed flask, flushed with nitrogen, were added 17 (91 mg, 0.5 mmol), 5-methoxyindoline (82 mg, 0.55 mmol), BuOH (10 mL), and 2-3 drops of cone. HC1. The reaction mixture was heated at reflux with stirring for 12 h until the starting material 17 disappeared (TLC). The reaction solution was allowed to cool to room temperature; the solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel with hexane: acetyl acetate = 20: 1 as the eluent. Fractions containing the product (TLC) were combined and evaporated to afford 93 mg (63%) 8 as a white powder: mp 201.1-202.3 C; Rf 0.5 (AcOEt/Hexane 3 : 1); 1H NMR (DMSO-d6) delta 2.42 (s, 3 H), 2.53 (s, 3 H), 3.25 (t, 2 H), 3.75 (s, 3 H), 4.39 (t, 2 H), 6.79 (t, 2 H), 6.89 (d, 1 H), 8.48 (d, 1 H), Anal. Ci7H17N302

Interested yet? This just the tip of the iceberg, You can reading other blog about 21857-45-4.

Reference:
Patent; DUQUESNE UNIVERSITY OF THE HOLY SPIRIT; GANGJEE, Aleem; (111 pag.)WO2016/100495; (2016); A1;,
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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. 16800-68-3, name is 1-Acetylindolin-3-one belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below. category: indolines-derivatives

General procedure: A 10 mL glass tube equipped with a stirring bar was charged with the isatin-derived N-Boc ketimine 1 (0.44 mmol, 1.2 equiv), the N-acetylindolin-3-one 2 (0.4 mmol, 1.0 equiv), catalyst 4o (0.02 mmol, 2 mol%) and CH2Cl2 (4.0 mL). The resulting solution was stirred at r.t. for the indicated time. The solvent was then evaporated to give the crude product, which was directly purified by flash chromatography (n-pentane/EtOAc, 4:1 to 1:1) to provide the desired products 3a-t.

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; Gajulapalli, V. Pratap Reddy; Jafari, Ehsan; Kundu, Dipti S.; Mahajan, Suruchi; Peuronen, Anssi; Rissanen, Kari; Enders, Dieter; Synthesis; vol. 49; 22; (2017); p. 4986 – 4995;,
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Electric Literature of 71294-03-6,When developing chemical systems it’s of course important to gain a deep understanding of the chemical reaction process.

7-Fluoro-1,3-dihydro-indol-2-one (7.3 g, 48 mmol) and lithium chloride (6.67 g, 158 mmol) was dissolved in THF (200 mL). The solution was then cooled to -78 C. and n-butyllithium (2.5 M, 40 mL, 100 mmol) was added slowly over a 15 minute period. After 20 minutes at -78 C., methyl iodide (6 mL, 96 mmol) was added and the mixture allowed to warm to room temperature. After 24 hours, the mixture was poured into water and extracted with ethyl acetate, dried (MgSO4), and concentrated in vacuo. Flash chromatography (SiO2, Hexane/ethylacetate 9/1 then 8/2) gave 7-fluoro-3,3-dimethyl-1,3-dihydro-2H-indol-2-one (4.1 g, 48%)

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 7-Fluoroindolin-2-one, and friends who are interested can also refer to it.

Reference:
Patent; Wyeth; US2006/9509; (2006); A1;,
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Indoline | C8H9N – PubChem