Indolines-derivatives

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. 552330-86-6, name is 5-Bromoisoindolin-1-one, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 5-Bromoisoindolin-1-one

In a screw cap vial under an argon atmosphere 3,4-dimethoxy-2- (isobutoxy)phenylboronic acid (Compound 302) (0.015g, 0.06mmol) and the bromide (0.066 mmol) was dissolved in dimethoxyethane (0.35 mL). K2C03 (1M solution, 0.12 mL, 0.12 mmol) and Pd(PPh3)4 (0.004g, 0.003mmol) was added. The suspension was shaken at 80C for 72h. Brine (2 mL) was added and the mixture was extracted with CH2CI2 (3 mL). The phases were separated using a phase separation cartridge (Chromabond, PTS) . The organic phase was concentrated in vacuo and the residue was dissolved in DMF (0.3 mL) and purified by preparative HPLC/MS.Compounds 174 – 176 were prepared according to this procedure: -i2-Isobutoxy-3r4-dimethoxy-phenyl)-2,3-dihydro-isoindol-l-one iCompound 174)1H NM (600 MHz, DMSO-SPE) delta 8.53 (s, 1H), 7.68 (d, J = 7.8 Hz, 1H), 7.64 (s, 1H), 7.56 (dd, J = 7.9, 1.2 Hz, 1H), 7.09 (d, J = 8.6 Hz, 1H), 6.93 – 6.88 (m, 1H), 4.39 (s, 2H), 3.84 (s, 3H), 3.79 (s, 3H), 3.48 (d, J = 14.4 Hz, 2H), 1.78 – 1.67 (m, 1H), 0.75 (d, J = 6.7 Hz, 6H).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 552330-86-6.

Electric Literature of 446292-08-6,Some common heterocyclic compound, 446292-08-6, name is (S)-2-((2-Oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)isoindoline-1,3-dione, molecular formula is C22H19N3O6, 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.

4.45 g (10.6 mmol) of the structural compound of formula (II) was suspended in 100 ml of ethanol, 40 ml of a methylamine aqueous solution (10.2 ml, 142 mmol) was added, reflux for 2 hours, concentrate to dryness under reduced pressure. Add 100 ml of ethanol, continue to concentrate under reduced pressure to dry. The residue was cooled to room temperature, adding 90 ml of methylene chloride, and the mixture was stirred to obtain a dichloromethane solution of the compound of the formula (R-1) go directly to the next step.

The synthetic route of 446292-08-6 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 132898-96-5, name is 2,3-Dioxoindoline-5-sulfonyl chloride, 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 132898-96-5, Product Details of 132898-96-5

General procedure: To a stirred solution of the N-Boc-protected pyrrolidine (1.0 mmol) in dry DCM (3 mL) at 0 C under argon atmosphere, TFA (1.14 g, 10.0 mmol) was added dropwise. The obtained solution was stirred at 0 C for 30 min followed by stirring at r.t. for 2 h. Subsequently, the solution was poured to cold 10% aq. NaOH (15 mL) and extracted with DCM (3 × 15 mL). The combined organic phases were dried over MgSO4 and concentrated under reduced pressure resulting in the corresponding unprotected pyrrolidine, which was used in the next step without further purification. The free pyrrolidine (ca. 1 mmol) from the previous step was then taken up in CHCl3 (2.2 mL) and DIPEA (2.0 mmol) was added. The solution was added dropwise to a stirred solution of 5-chlorosulfonyl isatin (1.5 mmol) in CHCl3/THF (1:1, 15 mL) at room temperature. The resulting mixture was stirred further for 1 h and the solvent was removed under reduced pressure. After purification by flash column chromatography the target isatin sulfonamide was obtained.

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These common heterocyclic compound, 22190-33-6, name is 5-Bromoindoline, 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. Quality Control of 5-Bromoindoline

Combine 5-bromoindoline (3.56 g, 18 mmol) and Et3N (1.92 g, 19 mmol) in CH2Cl2 (40 ml). Cool in an ice bath and add Boc2O (4.14 g, 19 mmol). Allow to warm, stir 2 h and add more Boc2O (0.50 g). Stir 2 h and wash with 1N HCl, then with 1N NaHCO3. Dry (MgSO4) and concentrate. Heat the solid with hexane, allow to cool, and filter to obtain the carbamate as off-white crystals, m.p. 124-6 C.

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

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. 32692-19-6, name is 5-Nitroindoline, A new synthetic method of this compound is introduced below., Safety of 5-Nitroindoline

Example 23 (S)-3,5-Dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)- phenyl)-2-(2-(5-(methylsulfonamido)indolin-1 -yl)acetoxy)ethyl)pyridine1 -oxide (Compound 131 ) Scheme 23 Step 1 : Preparation of benzyl 2-(5-nitroindolin-1 -yl)acetate (127) To a solution of 5-nitroindoline (1 g, 6.09 mmol) in dry DMF (20 ml), K2C03 (1 .094 g, 7.92 mmol) and benzyl 2-bromoacetate (1 .242 ml, 7.92 mmol) were added and the resulting suspension was heated at 65C for 2 hours. The mixture was cooled to room temperature, diluted with ethyl acetate and washed with water and brine. The organic layer was dried over sodium sulfate and the solvent was removed. The residue was purified by flash chromatography on silica gel column (DCM:petroleum ether = 60:40) affording benzyl 2-(5-nitroindolin-1 -yl)acetate (0.782 g, 2.504 mmol, 41 % yield). MS/ESI+ 312.9 [MH] +.

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.

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. 56341-37-8, name is 6-Chlorooxindole belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below. Safety of 6-Chlorooxindole

General procedure: To the mixture of optionally substituted 6-chlorooxindole (5.0 mmol) and 3-chloro-2-fluorobenzaldehyde (2.4 g, 15 mmol) (Oakwood) in methanol (50 mL) was addedpiperidine (Aldrich) (1.7 g, 20 mmol) dropwise. The mixture was then heated at 50 Cfor 3 h. After cooled to 4 C, the mixture was filtered and resulting precipitate wascollected, washed with cold methanol, dried to give the desired product.(E)-6-chloro-3-(3-chloro-2-fluoro-benzylidene)-1,3-dihydro-indol-2-one 13.1 (R3a = H,R3b = H, R3c = H): a yellow solid (Yield, 84%); 1H NMR (300 MHz, DMSO-d6) 10.88 (br.s., 1H), 7.73 (q, J = 7.41 Hz, 2H), 7.56 (s, 1H), 7.34 – 7.43 (m, 1H), 7.17 (d, J = 8.10 Hz,1H), 6.87 – 6.97 (m, 2H) ppm.

The synthetic route of 56341-37-8 has been constantly updated, and we look forward to future research findings.

Some common heterocyclic compound, 446292-08-6, name is (S)-2-((2-Oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)isoindoline-1,3-dione, molecular formula is C22H19N3O6, 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. Product Details of 446292-08-6

To the slurry of Formula-4 160 gm, 0.379 moles in 800 ml isopropyl alcohol, Charged 40% methylamine solutionl30 gm, 1.677 moles. Reaction mass was heated up to 45C-50C for 2-3 Hrs. Distilled out IPA under vacuum and charged fresh 800 ml Isopropyl alcohol Cooled reaction mass to 45C-50C and added 70% solution of Perchloric acid 59.6 gm, 0.415 moles. Stirred reaction mass for 1 Hrs at 45-50C. Cooled reaction mass to 0-5 C, filtered and dried at 50C-55C to afford 160 gm crude 4-{4-[(5S)-5-(Aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate. The crude 4-{4-[(5S)-5-(Aminomethlyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-mophiholin-3-one perchlorate has a crystalline nature and is in considerably pure form.To Above crude 4-{4-[(5S)-5-(Aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate charged 640 ml Dichloromethane (4 vol of starting material) and charged 320 ml methanol. Heated the slurry to 38C – 40C and stirred for 30 min. Cooled the slurry to 20C. Filtered and suck dried. Product obtained after drying was 138.7 gm pure crystalline perchlorate salt having purity more than 99.5% (Yield-94%)

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 446292-08-6, its application will become more common.

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. 3891-07-4, name is 2-(2-Hydroxyethyl)isoindoline-1,3-dione, This compound has unique chemical properties. The synthetic route is as follows., COA of Formula: C10H9NO3

General procedure: To a double-necked round bottom flask (100mL), equipped with a condenser, it was added a mixture of KI (1.5mmol), P2O5 (1.5mmol) and the desired alcohol (1mmol) in DMF (5mL). The reaction mixture was stirred at r.t. for 30min. Next, the considered nucleobase (1mmol), K2CO3 (1mmol) and Et3N (1mmol) were added and the reaction mixture was heated to reflux for a further 6.5-10.5h (until TLC indicated no further progress in reaction, Table5). The solvent was then evaporated at reduced pressure, and the remaining foam was dissolved in chloroform (150mL) and washed with water (2×150mL). The organic layer was dried on Na2SO4 (1g) and evaporated. The product was purified using short column chromatography on silica gel eluting with proper solvents.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 3891-07-4.

Electric Literature of 88150-75-8, 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 88150-75-8 as follows.

Ethyl 2- { [2-D, 3-DIOXOISOINDOLIN-2-YDETHOXY] METHYL}-4- (2-CHLOROPHENYL)-5-CYANO-6- methyl-1,4-dihydropyridine-3-carboxylate. A mixture of 2-chlorobenzaldehyde (2.64 g; 18.79 mmol), 3-aminocrotononitrile (1.54 g; 18.79 MMOL), and ethyl 4- [2- (1, 3- dioxoisoindolin-2-yl) ethoxy] -3-oxobutanoate (6 g; 18. 79 mmol) in MeOH is heated to reflux for 6 days. After cooling, the solvent is removed under reduced pressure and the crude product is purified on a silica gel column to obtain the product in 70% yield as a light yellow solid.

According to the analysis of related databases, 88150-75-8, the application of this compound in the production field has become more and more popular.

Electric Literature of 480-91-1, These common heterocyclic compound, 480-91-1, name is Isoindolin-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.

A stirred mixture of 79D (4.6 g, 8.64 mmol), isoindolin-1-one (1.15 g, 8.64 mmol), Pd2(dba)3 (791 mg, 0.864 mmol), Cs2CO3 (8.44 g, 25.92 mmol) and Xantphos (700 mg, 1.21 mmol) in 1,4-dioxane (150 mL) was heated to 100 C. overnight. The reaction mixture was allowed to cool to room temperature and filtered. The filtrate was concentrated under reduced pressure and the residue was purified by silica column chromatography (1%-5% MeOH in DCM) to give 79E (2.6 g, 56% yield) as a white solid: 1H NMR (400 MHz, DMSO-d6) delta 8.54 (d, J=8 Hz, 1H), 8.05 (t, J=7.6 Hz, 1H), 7.99 (d, J=6.8 Hz, 1H), 7.79 (d, J=7.6 Hz, 1H), 7.66 (t, J=7.2 Hz, 1H), 7.57-7.48 (m, 3H), 7.22 (t, J=7.6 Hz, 1H), 7.13-7.04 (m, 4H), 5.19 (d, J=7.2 Hz, 1H), 5.03 (d, J=17.6 Hz, 1H), 4.56 (d, J=17.6 Hz, 1H), 4.11 (dd, J=10.4 Hz, 3 Hz, 1H), 3.95 (d, J=9.2 Hz, 1H), 3.12-2.93 (m, 3H), 2.81-2.75 (m, 1H), 0.80 (s, 9H); ESI m/z 586.1 [M+H]+.

Statistics shows that Isoindolin-1-one is playing an increasingly important role. we look forward to future research findings about 480-91-1.