Author: Jessica.F

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. 446292-08-6, name is (S)-2-((2-Oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)isoindoline-1,3-dione, A new synthetic method of this compound is introduced below., Recommanded Product: 446292-08-6

Add 4 kg of N-methylpyrrolidone to a 10 L reaction flask.Add 1.0kg of compound (II), add 0.3kg of 80% hydrazine hydrate, stir and heat.The reaction was stirred at 90 C for 4 h. The reaction solution was cooled to 45 ± 5 C,Add about 0.7kg of sulfuric acid, add the reaction, and cool the reaction solution to 5±5C for 1h~1.5h.Filtration, filter cake washed with N-methylpyrrolidone, ethanol,Transfer the wet product to the blast oven,The internal temperature of the oven was controlled to dry at 50-55 C for 16 ± 1 hour to obtain a white solid.Yield: 92%, product purity (HPLC): 99.5%.

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:
Patent; Changzhou Pharmaceutical Factory Co., Ltd.; Guo Yijie; Jin Xiaofeng; Shao Zhichun; (13 pag.)CN110156768; (2019); A;,
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Synthetic Route of 2058-72-2, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 2058-72-2 as follows.

General procedure: Isatin (10 mmol), 2,2,2-trifluoroethylamine hydrochloride (15 mmol) and p-toluenesulfonic acid (0.5mmol) were suspended in toluene (10 mL) in a two-neck flask with a water separator and a condenser.The mixture was then heated to separate the water until complete disappearance of the starting materials.After cooling to room temperature, the mixture was washed with a small quantity of saturated NaHCO3solution and dried by Na2SO4, After evaporation of the organic solvent, the crude residue was purified byflash chromatography (silica gel, hexane/EtOAc) and afforded the resulting ketimine.

According to the analysis of related databases, 2058-72-2, the application of this compound in the production field has become more and more popular.

Reference:
Article; Huang, Wei-Jie; Chen, Qing; Zhu, Wen-Run; Lin, Ning; Long, Xian-Wen; Pan, Wei-Gao; Weng, Jiang; Lu, Gui; Heterocycles; vol. 94; 5; (2017); p. 879 – 893;,
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Application of 2058-72-2, 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. 2058-72-2, name is 5-Bromo-1-methylindoline-2,3-dione belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.

General procedure: At the first, a mixture containing (10% mol) aimin base ligand and transition metal salts (10% mol) was prepared in 10 ml dichloromethan. Then a mixture of isatin derivatives (1 mmol) and (S)-proline (1.1 mmol), in 10 mL ethanol was added to mixture. After completion of the reaction (monitored by TLC), the reaction mixture was extracted with dichloromethane (15 mL). The combined organic layer dried over anhydrous MgSO4. The organic layer was concentrated in vacuum to furnish the products, which were recrystallized from ethanol.

The synthetic route of 5-Bromo-1-methylindoline-2,3-dione has been constantly updated, and we look forward to future research findings.

Reference:
Article; Taghizadeh, Mohammad Javad; Javidan, Abdollah; Jadidi, Khosrow; Journal of the Korean Chemical Society; vol. 59; 3; (2015); p. 205 – 208;,
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Reference of 1074-82-4, 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. 1074-82-4, name is Potassium 1,3-dioxoisoindolin-2-ide, This compound has unique chemical properties. The synthetic route is as follows.

(Synthesis of Intermediate 1)96.2 g (1.04 mol) of chloroacetone was added to 300 ml of N-methylpyrrolidone (NMP), and the mixture was stirred at 15 to 20 C. 175 g (0.945 mol) of phthalimide potassium was added in portions to the solution, while the temperature of reaction solution was kept at 30 C. or lower. After addition, the mixture was stirred at room temperature for two hours, to complete the reaction. After reaction, the reaction solution was poured into 3,000 ml of water, allowing precipitation of the crystal. The crystal was filtered, washed with water and dried, to give 163 g of an intermediate 1 (yield: 84.9%).

The chemical industry reduces the impact on the environment during synthesis Potassium 1,3-dioxoisoindolin-2-ide. I believe this compound will play a more active role in future production and life.

Reference:
Patent; FUJIFILM CORPORATION; US2012/238752; (2012); 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. 59-48-3, name is Indolin-2-one belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below. Formula: C8H7NO

5-Acetyl-2-oxindole 2-Oxindole (3 g) was suspended in 1,2-dichloroethane and 3.2 mL acetyl chloride were slowly added. The resulting suspension was heated to 50 C. for 5 hours, cooled, and poured into water. The resulting precipitate was collected by vacuum filtration, washed copiously with water and dried under vacuum to give 2.9 g (73% yield) of the title compound as a brown solid.

The synthetic route of 59-48-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SUGEN, Inc.; US2003/69421; (2003); A1;; ; Patent; Sugen, Inc.; US6051593; (2000); A;,
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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. 5332-26-3, name is 2-(Bromomethyl)isoindoline-1,3-dione, A new synthetic method of this compound is introduced below., Computed Properties of C9H6BrNO2

General procedure: The vacuum dried intermediate 3 (0.002 mol) was then reacted with mono- and di-substituted benzoic acids (0.003 mol) separately in presence of anhydrous potassium carbonate (0.003 mol) in DMF (10 mL). The reaction mixture was stirred at room temperature for about 2 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was poured into ice-cold water and allowed stir for 10 min. The solid obtained was filtered and washed successively with distilled water and recrystallized from ethanol to obtain4(a-n).

The synthetic route of 5332-26-3 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Kumar, C.S. Chidan; Loh, Wan-Sin; Chandraju, Siddegowda; Win, Yip-Foo; Tan, Weng Kang; Quah, Ching Kheng; Fun, Hoong-Kun; PLoS ONE; vol. 10; 3; (2015);,
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These common heterocyclic compound, 552330-86-6, name is 5-Bromoisoindolin-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. Formula: C8H6BrNO

5-Bromoisoindolin-l-one (15 g, 70.74 mmol) and sodium methyl mercaptide (12.40 g,176.85 mmol) were mixed together in DMF (150 mL) and heated to 100 C for lh. The reaction mixture was cooled to room temperature and poured into water (160 mL), and the aqueous phase was extracted with EtOAc (400 mL). The layers were then separated and the aqueous phase extracted with EtOAc (3 x 200 mL). The combined organic extracts were washed with brine (3 x 100 mL), dried using a phase separator cartridge and concentrated in vacuo. 5-(Methylthio)isoindolin-1-one (12.00 g, 95%) was obtained as a yellow solid. The material was used in the next step without further purification. LC/MS: m/zrrl8O [M+H]. ?H NMR (500 MHz, DMSO-d6) i5 2.54 (s, 3H), 4.33 (s, 2H), 7.33 (d, 1H), 7.44 (s, 1H), 7.56 (d, 1H), 8.43 (s, 1H).

The synthetic route of 5-Bromoisoindolin-1-one has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ASTRAZENECA AB; LEVER, Sarah; NARJES, Frank; OLSSON, Roine, Ingemar; VON BERG, Stefan; (124 pag.)WO2018/229155; (2018); A1;,
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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. 60434-13-1, name is 5-Chloro-1-methylindoline-2,3-dione, A new synthetic method of this compound is introduced below., Computed Properties of C9H6ClNO2

General procedure: A mixture of aminorhodanine (1 mmol), isatin (1 mmol) and 5 muL of acetic acid in 2mL of distilled ethanol was placed in a cylindrical quartz reactor (Phi = 4 cm). The reactor was introducedinto a monomode microwave (Anton Paar) apparatus, for 5 min at100 C and 50 Watts. The crude reaction mixture was allowed tocool down at room temperature and ethanol (10 mL) or mixture of H2O/EtOH (10 mL) was directly added in the cylindrical quartzreactor. The resulting precipitated product was filtered off and waspurified by recrystallization from ethanol if necessary.

The synthetic route of 60434-13-1 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Khaldoun, Khadidja; Safer, Abdelmounaim; Boukabcha, Nourdine; Dege, Necmi; Ruchaud, Sandrine; Souab, Mohamed; Bach, Stephane; Chouaih, Abdelkader; Saidi-Besbes, Salima; Journal of Molecular Structure; vol. 1192; (2019); p. 82 – 90;,
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Reference of 6326-79-0, 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. 6326-79-0, name is 6-Bromoisatin, This compound has unique chemical properties. The synthetic route is as follows.

Synthesis of 1-Methyl-6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-indol-2-one (R7) Step 1: Synthesis of Intermediate I-4.1 [0293] To R12 (25.0 g, 111 mmol) in acetonitrile (750 mL) is added MeI (15 mL, 241 mmol) and K2CO3 (60.0 g, 434 mmol) and the reaction mixture is stirred at 60 C. for 2 h. The reaction mixture is filtered and concentrated. Water and ethyl acetate are added to the residue. The organic layer is extracted twice with water, dried over MgSO4 and concentrated. Yield 56%, m/z 240/242 [M+H]+, rt 0.48 min, LC-MS Method X001-004.

The chemical industry reduces the impact on the environment during synthesis 6-Bromoisatin. I believe this compound will play a more active role in future production and life.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; ANDERSKEWITZ, Ralf; GRUNDL, Marc; MORSCHHAEUSER, Gerd; OOST, Thorsten; PAUTSCH, Alexander; US2014/275114; (2014); A1;,
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Electric Literature of 32692-19-6, 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. 32692-19-6, name is 5-Nitroindoline belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.

General procedure: We described the synthesis of the compound 1 (Table 2) to illustrate the general procedure for TFA accelerated Petasis three-component reaction. The descriptions of the preparations of all reported compounds are in the Supporting information section. To a magnetically stirred mixture of 5-nitroindoline (0.164 g, 1.0 mmol), 4-tolyboronic acid (0.135 g, 1.0 mmol), and glyoxylic acid monohydrate (0.092 g, 1.0 mmol) in CH2Cl2 (5 ml) was added TFA (20 mul). The mixture was stirred at room temperature for 4 h. After the completion of the reaction (TLC monitoring), half of the solvent was evaporated by means of a rotovap. The resulting solid was filtered through a sintered glass funnel. The collected solid was thoroughly washed with petroleum ether and a small amount of ice water (5 ml), and then dried in vacuo at room temperature for 24 h to afford 0.26 g (83.3 %) of 2-(5-nitroindolin-1-yl)-2-(p-tolyl) acetic acid as a light yellow solid.

The synthetic route of 5-Nitroindoline has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zhang, Jing; Yun, Fan; Xie, Rui; Cheng, Chunhui; Chen, Guangyao; Li, Jingxuan; Tang, Pingwah; Yuan, Qipeng; Tetrahedron Letters; vol. 57; 35; (2016); p. 3916 – 3919;,
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