Month: April 2021

959235-95-1, name is 6-(Trifluoromethoxy)indoline, belongs to indolines-derivatives compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Application In Synthesis of 6-(Trifluoromethoxy)indoline

To a solution of 2-(2-(2-((tert-butyldimethylsilyl)oxy)ethoxy)-4-fluorophenyl)-2-((3- methoxy-5-(methylsulfonyl)phenyl)amino)acetic acid 2d (1 g, 1 .90 mmol) in DMF (10 mL) were added HATU (1 .08 g, 2.84 mmol), diisopropylethylamine (940 pL,5.69 mmol) and 6-(trifluoromethoxy)indoline [CAS 959235-95-1] (385 mg, 1.90 mmol). The reaction mixture was stirred at room temperature for 4 h. The reaction mixture was diluted with water. The precipitate was filtered off, washed with water and taken up with EtOAc. The organic layer was washed with a 10% solution of K2003 in water, a saturated solution of NaCI in water, water, dried over MgSO4,filtered and the solvent was concentrated under reduced pressure to give 2-(2-(2-((tert-butyld imethyl silyl )oxy)ethoxy)-4-fl uorophenyl )-2-((3-methoxy-5-(methylsulfonyl)phenyl)amino)-1 -(6-(trifluoromethoxy)indolin-1 -yl)ethanone 3a(1 .32 g). The crude compound was used without purification in the next reactionstep.

The synthetic route of 959235-95-1 has been constantly updated, and we look forward to future research findings.

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 6941-75-9 as follows. Safety of 5-Bromoisoindoline-1,3-dione

To a solution of 5-bromophthalimide (44.2 mmol; 1.0 equiv) in THF (221 mL) under N2 atmosphere is added BF3-OEt2 (265.5 mmol; 6.0 equiv) and the reaction is stirred for 30 minutes at 25 C. BH3-THF (353.6 mmol; 8.0 equiv) is added to the reaction mixture which is then heated to 40 C for 24 h. The reaction is cooled to room temperature and quenched with 60 mL MeOH until gas evolution ceases; 400 mL HCl is added and the reaction is refluxed for 3 h. The reaction is then cooled to room temperature and the water layer is washed with ethyl acetate. The water layer is then brought to pH 14 with 6 N NaOH and extracted with ethyl acetate. The combined organic extracts are dried (MgSO4), filtered, and concentrated to crude product 5-bromo-2,3-dihydro-lH-isoindole, which is carried onto the next step without further manipulation.

According to the analysis of related databases, 6941-75-9, the application of this compound in the production field has become more and more popular.

Application of 6341-92-0,Some common heterocyclic compound, 6341-92-0, name is 6-Chloroisatin, molecular formula is C8H4ClNO2, 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. 6-Chlorooxindole Reaction of 36.2 g. of 6-chloroisatin with hydrazine hydrate followed by sodium ethoxide in ethanol, substantially according to B above, afforded 14.2 g. of 6-chlorooxindole, m.p. 196-198 C. In an analogous manner 4- and 6-fluoro- and bromooxindoles are prepared, as well as 7-fluorooxindole, 7-bromooxindole, 7-methyloxindole, 4,6-difluorooxindole, 4,7-dichlorooxindole, 5,7-difluorooxindole, 5-n-butyl-7-fluorooxindole, 7-cyclohexyloxindole and 7-cyclopropyloxindole.

The synthetic route of 6341-92-0 has been constantly updated, and we look forward to future research findings.

Application of 883-44-3, 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. 883-44-3, name is 2-(3-Hydroxypropyl)isoindoline-1,3-dione belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.

A 50 ml round bottom flask was charged with aq. NaHCO3(0.05 M, 10 ml), aq. K2CO3(0.5 M, 10 ml) and CHCl3(5 ml). Alcohol 5 (16.02 g, 78.1 mmol) was dissolved in CHCl3(50 ml) and transferred to the reaction mixture followed by tetra-nbutylammonium chloride (4.34 g, 15.6 mmol), N-chlorosuccinimide (20.9 g, 156.1 mmol) and TEMPO (2.44 g, 15.6 mmol) and the reaction mixture was stirred vigorously at rt for 4.5 h. The phases were separated and the organic phase was washed with sulfate buffer (100 ml), NaHCO3(100 ml), and brine (100 ml), dried (Na2SO4), filtered and concentrated in vacuo. Purification by flash column chromatography (35% EtOAc in n-heptane, v/v) gave aldehyde 9 (6.54 g, 38%) as a white amorphous solid.

The synthetic route of 2-(3-Hydroxypropyl)isoindoline-1,3-dione 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. 6872-06-6, name is 2-Methylindoline, A new synthetic method of this compound is introduced below., SDS of cas: 6872-06-6

General procedure: 2-Methylindoline (400 mg, 3.0 mmol, 1.0 equiv) was dissolved in dry pyridine (10 mL). Methane sulfonyl chloride (480 mg, 4.2 mmol, 1.4 equiv) was added dropwise and the reaction mixture was stirred overnight at rt. Monitoring by HPLC and LCMS indicated that the reaction was completed. The solvent was evaporated under reduced pressure. A solution of HCl 1N (50 mL) and EtOAc (50 mL) were added. The organic layer was separated and the aqueous phase was extracted twice with EtOAc (2×50 mL). The combined organic phase was dried over Na2SO4 and the solvent was evaporated under reduced pressure to yield the pure product: 634 mg, 100 % yield.

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.

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. 100510-65-4, name is 6-Amino-3,3-dimethylindolin-2-one, A new synthetic method of this compound is introduced below., Recommanded Product: 6-Amino-3,3-dimethylindolin-2-one

(f) 6-Acetamido-3,3-dimethylindolin-2-one 20.4 g. (0.2 mol) Acetic anhydride are added dropwise, with cooling, to a suspension of 32 g. (0.18 mol) 6-amino-3,3-dimethyl-indolin-2-one in 500 ml. ethyl acetate and then stirred for about 1 hour at ambient temperature. The resultant product is filtered off with suction, well washed with ethyl acetate and dried. Yield: 37.8 g. (96% of theory); m.p. 275-277 C. The following compound is obtained in a manner analogous to that described in (f):

The synthetic route of 100510-65-4 has been constantly updated, and we look forward to future research findings.

Reference of 675109-26-9, 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. 675109-26-9, name is 6-Bromoisoindolin-1-one belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below.

To a degassed solution of 6-bromoisoindolin-1-one (0.7 g, 3.3 mmol), 1-Boc pperazine (0.921 g, 4.9 mmol) and sodium tert butoxide (0.95 g, 2.5 mmol) in toluene (10 mL),Pd2(dba)3 (0.151 g, 0.l6Smmol) and BINAP (0.205 g, 0.33 mmol) were added at rt and heated to 80 C overnight in sealed tube. Then the reaction mixture was filtered through celite and concentrated. Water (4 mL) was added and was extracted with EtOAc (2 x 10 mL). The combined organic layer was dried over Na2SO4 and concentrated under vacuum. The resulting crude product was purified by flash chromatography (Eluent: 5-6% MeOH inDCM). After evaporation, the resulting solid was triturated in Et20 and filtered, affording the title product (white solid). 1H NMR (400 MHz, CDCI3): 6 8.72-8.70 (m, IH), 7.79 (d, J = 1.6 Hz, IH), 7.56 (d, J = 8.4 Hz, IH), 7.26-7.23 (m, IH), 4.26 (5, 2H), 3.49-3.46 (m, 4H), 3.18- 3.13 (m, 4H), 1.43 (5, 9H). LCMS: (Method A) 318.0 (M+H), Rt. 2.26 mm, 39.9% (Max).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 6-Bromoisoindolin-1-one, other downstream synthetic routes, hurry up and to see.

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. 169037-23-4, name is 5-(Trifluoromethoxy)indoline-2,3-dione, A new synthetic method of this compound is introduced below., Application In Synthesis of 5-(Trifluoromethoxy)indoline-2,3-dione

General procedure: N-(4-Sulfamoylphenyl)hydrazinecarbothioamide (2) (3.5mmol) was added to a solution of 1H-indole-2,3-diones 3a-m (3.5mmol) in ethanol (20mL). After addition of a drop of concentrated sulfuric acid, the mixture was refluxed on a water bath for 4h. The product formed after cooling was filtered and washed with ethanol or recrystallized from ethanol.

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.

Related Products of 59-48-3, 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. 59-48-3, name is Indolin-2-one, This compound has unique chemical properties. The synthetic route is as follows.

Preparation of 5-nitro-oxindole To a solution of oxindole (26 g) in 100 mL of concentrated sulfuric acid at -15 C. was added fuming nitric acid (8.4 mL) dropwise. Careful attention was paid to maintain the reaction temperature at -15 C. After the addition was complete, the reaction was stirred for 30 minutes and then poured into ice water. A yellow precipitate was formed which was isolated by filtration to provide 34 grams (98%) of 5-nitro oxindole.

The chemical industry reduces the impact on the environment during synthesis Indolin-2-one. I believe this compound will play a more active role in future production and life.

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 18711-13-2 as follows. category: indolines-derivatives

General procedure: Sulfonated-beta-cyclodextrin (beta-CD-SO3H) (76 mg, 0.06 mmol) was dissolved in water (5 mL) at RT by stirring to get the clear solution in 50 mL round bottom ask. Further, isatin 2 (0.31 mmol) and tryptamine 1a/isotryptamine 1b (0.31 mmol) were added to the solution under constant stirring and mixture was heated at 80 C for 8-12 h. The progress of the reaction was monitored by TLC. After completion of reaction, it was cooled to room temperature, water was added to it. The aqueous phase was extracted with ethylacetate. The organic extracts were combined, washed with brine and dried over sodium sulfate. The solvent was evaporated in vacuo and the crude product obtained was puried by column chromatography using chloroform/methanol (99:1) as an eluent furnishing the product. The spectral and analytical data of all the reported products is consistent with the previous (6c,d,f) reports.

According to the analysis of related databases, 18711-13-2, the application of this compound in the production field has become more and more popular.