Category: indolines-derivatives

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. , Electric Literature of 118289-55-7

Example 5 Preparation of 5- [2- [4- (1, 2- benzisothiazol-3-yl) -1-piperazinyl] ethyl] -6-chloro-1, 3-dihydro-2H-indol-2-one (Ziprasidone base) Example 2 was repeated with the exception that 10 ml of 1-butyl-3-methylimidazolium bromide was used instead of 8 ml of 1-ethyl-3-methylimidazolium methyl sulfate. After the completion of the reaction the presence of 5- [2- [4- (1, 2- benzisothiazol-3-yl) -1-piperazinyl] ethyl] -6-chloro-1, 3- dihydro-2H-indol-2-one was confirmed by HPLC.

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Reference:
Patent; KRKA; EP1889844; (2008); A2;,
Indoline – Wikipedia,
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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. 2913-97-5, name is N-(2-Oxoethyl)phthalimide, A new synthetic method of this compound is introduced below., Product Details of 2913-97-5

A solution of the product of Example 3E (9.34 g, 49.4 mmol) in methanol (33 mL) was treated with L-tert-leucine tert-butyl ester hydrochloride (10 g, 44.9 mmol), sodium cyanoborohydride (5.6 g, 89.8 mmol), and acetic acid (1.5 ml, 26.2 mmol), stirred at 25° C. for 4 hours, and partitioned between chloroform and saturated NaHCO3. The organic phase phase was washed with brine, dried over MgSO4, filtered and concentrated. The residue was chromatographed in silica gel, eluting with first with 66percent chloroform in hexanes and then with 33percent ethyl acetate in chloroform to give the title compound (10.5 g, 59percent yield).

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Reference:
Patent; DeGoey, David A.; Flentge, Charles A.; Flosi, William J.; Grampovnik, David J.; Kempf, Dale J.; Klein, Larry L.; US2005/131017; (2005); A1;,
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In chemical reaction engineering, simulations are useful for investigating and optimizing a particular reaction process or system., HPLC of Formula: C9H4F3NO3

General procedure: A mixture of bisarylidenepiperidin-4-one (1.36 mmoL), isatin (2.72 mmoL) and L-phenylalanine (2.72 mmoL) were heated with stirring in [bmim]Br medium (3 mL) for 1 h at 100 C. After completion of the reaction (TLC), ethyl acetate (2 x 5 mL) was added and the reaction mixture was stirred for 10 min. The organic layer was removed under reduced pressure and the crude product was purified by column chromatography (ethyl acetate:hexane v/v 3:7). 5′-Benzyl-4′-(p-methoxyphenyl)-5-(trifluoromethoxy)spiro[3,2′]oxindolopyrrolidino-4′-(p-methoxyphenyl)-1?-styryl-5-benzylidene-spiro[3′.3?]piperidin-4?-one (5l): Melting point 270-272 C; White solid, 92%; 1H-NMR (CDCl3, 400 MHz): delta/ppm 5.00 (d, J = 14.64 Hz, 1H), 4.67-4.70 (m, 1H), 4.33 (d, J = 10.24 Hz, 1H), 3.86 (d, J = 13.92 Hz, 1H), 3.81 (s, 3H), 3.79 (s, 3H), 3.76 (d, J = 16.92 Hz, 1H), 3.47 (d, J = 15.4 Hz, 1H), 3.06 (d, J = 11.72 Hz, 1H), 2.75-2.79 (dd, J = 13.96, 8.08 Hz, 1H), 2.72 (d, J = 13.92 Hz, 1H), 6.59-6.66 (m, 2H), 7.14-7.63 (m, 21H, Ar); 13C-NMR (CDCl3, 100 MHz): delta/ppm 39.6, 47.3, 52.7, 53.1, 55.3, 55.4, 61.1, 67.3, 70.9, 100.8, 109.7, 114.1, 114.4, 121.1, 122.2, 124.7, 124.9, 126.5, 127.4, 128.5, 128.6, 128.7, 129.3, 129.9, 130.1, 130.4, 134.5, 136.9, 138.3, 138.5, 138.7, 139.8, 139.8, 144.4, 179.6, 197.2. EI-MS: m/z 771 (M+). Anal. Calcd for C46H40F3N3O5: C, 71.58; H, 5.22; N, 5.44. Found: C, 71.71; H, 5.34; N, 5.56.

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Reference:
Article; Arumugam, Natarajan; Almansour, Abdulrahman I.; Kumar, Raju Suresh; Govindasami, Periyasami; Al-thamili, Dhaifallah M.; Krishnamoorthy, Rajapandian; Periasamy, Vaiyapuri Subbarayan; Alshatwi, Ali A.; Mahalingam; Thangamani, Shankar; Menendez, J. Carlos; Molecules; vol. 23; 5; (2018);,
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Redox catalysis has been broadly utilized in electrochemical synthesis. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis., Reference of 611-09-6

General procedure: Isatin 1 (3 mmol), malononitrile (0.2 g, 3 mmol,), bicyclic CH-acid 2 (3 mmol) and sodium acetate (0.025 g, 0.3 mmol) in ‘solvent-free’ manner or with additive (‘on-solvent’ manner) were grinded with a pestle and mortar at ambient temperature for 15 minutes. After the reaction was finished, the mixture was air-dried. Then the crude solid was put on filter, rinsed with water (2 mL) and EtOH (2 mL), and then dried with a water pump to isolate the spiro-oxindole 3.

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Reference:
Article; Elinson, Michail N.; Vereshchagin, Anatoly N.; Ryzhkov, Fedor V.; Anisina, Yuliya E.; Arkivoc; vol. 2018; 4; (2018);,
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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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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).

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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.

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Reference:
Article; Tian, Shaixiao; Mao, Yu; Jiang, Yongjun; Xu, Guangyu; Synlett; vol. 29; 7; (2018); p. 949 – 953;,
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