Category: nitriles-buliding-blocks

Electric Literature of 25808-30-4, These common heterocyclic compound, 25808-30-4, name is 2-(Methylamino)acetonitrile hydrochloride, 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.

General procedure: A dry one neck 50mL round bottom flask equipped with magnetic stirring, reflux condenser, and nitrogen atmosphere (or drying tube) was charged with the vinamidinium salt (3.30 mmol), methylaminoacetonitrile hydrochloride (0.355 g, 3.33mmol) and triethylamine (0.97 mL, 6.95 mmol).Anhydrous acetonitrile (10 mL) was added and the mixture was allowed to stir at reflux overnight. The flask wascooled to room temperature and the volatiles were removed in vacuo. The remainingsolid was partitioned between water and ethyl acetate. The ethyl acetate layer was dried over sodiumsulfate and concentrated in vacuo togive the crude solid.

Statistics shows that 2-(Methylamino)acetonitrile hydrochloride is playing an increasingly important role. we look forward to future research findings about 25808-30-4.

Electric Literature of 15996-76-6, 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. 15996-76-6, name is 4-(Aminomethyl)benzonitrile hydrochloride belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Intermediate 28: tert-butyl {4-[amino(hvdroxyirnino)methyllbenzyl}carbamateStep 1: tert-butyl 4-cyanobenzylcarbamate To a solution of 4-cyanobenzylamine hydrochloride (1.05 g; 6.25 mmol) in water (10 mL) was added sodium hydroxide (0.75 g; 18.75 mmol) and di-tert-butyldicarbonate (1 .49 g; 6.87 mmol) and the mixture was stirred for 16 hours. The solid was collected by filtration and dried in a vacuum oven at 40C for 48 hours. The title compound was isolated as a white solid (1 .35 g; 80%). 1H NMR: (CDCI3, 400MHz) delta 7.62 (2H, d, J = 8.1 Hz), 7.39 (2H, d, J = 8.0 Hz), 4.97 (1 H, s), 4.37 (2H, d, J = 6.2 Hz), 1.46 (9H, s).

The synthetic route of 4-(Aminomethyl)benzonitrile hydrochloride has been constantly updated, and we look forward to future research findings.

Related Products of 90401-84-6, 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. 90401-84-6, name is 6-Cyano-1-tetralone belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Step 3: 6-Bromo-5-oxo-5,6,7,8-tetrahydronaphthalene-2-carbonitrile Bromine (0.8 mL, 15.7 mmol) was added to a solution of 5-oxo-5,6,7,8-tetrahydro-naphthalene-2-carbonitrile (2.7 g, 15.7 mmol), prepared in the previous step, in dry methylene chloride (55 mL) at 0 C. The reaction was warmed to room temperature. After 2 h, the reaction was diluted with methylene chloride and washed with 5% sodium thiosulfate and brine. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to give 4.3 g of crude product. Purification of the crude product on silica gel using 10% ethyl acetate:hexane as the eluent gave 6-bromo-5-oxo-5,6,7,8-tetrahydronaphthalene-2-carbonitrile (3.2 g, 81%), MS (ES) m/z 251 [M+H]+.

The synthetic route of 6-Cyano-1-tetralone has been constantly updated, and we look forward to future research findings.

Synthetic Route of 218632-01-0,Some common heterocyclic compound, 218632-01-0, name is 3-Fluoro-4-nitrobenzonitrile, molecular formula is C7H3FN2O2, 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.

To a solution of 3-Fluoro-4-nitrobenzonitrile (1.0 g, 6.0 mmol) in DMA (5 inL) were added Beta-Alanine ethyl ester HCl (1.4 g, 9.03 mmol) and DIPEA (1.6 mL, 9.03 mmol). The reaction mixture was stirred at room temperature for 16 h (the recation was completed; the reaction mixture turned to orange from yellow in color). The reaction mixture was then diluted with ethyl acetate and washed with water (x4). The organic phase was then dried over Na2SO4 and concentrated to afford 1.53 g (96%) of the desired product as yellow solid.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3-Fluoro-4-nitrobenzonitrile, its application will become more common.

Related Products of 1835-65-0, These common heterocyclic compound, 1835-65-0, name is 3,4,5,6-Tetrafluorophthalonitrile, 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 thermometer attached to a 100ml four-necked reactor, tetrafluorophthalonitrile (compound (5)) 6.0g (30mmol), potassium fluoride 21g (36mmol, 1.2 eq.) and acetonitrile into a 50ml, stirring under a 5 it cooled. Here, beta- naphthol (compound (a-1)) was added dropwise to 4.3g (30mmol, 1.0eq.). After the addition was completed, the mixture was reacted for 1 hour at less than 5, heated to room temperature and allowed to react for 2 hours. After the reaction, the reaction mixture was taken out by releasing the water, and filtering the precipitated solid. Resulting crude by well washing the product with isopropanol and dried to obtain the compound (4-1), 6.7g, as a white solid (yield 69percent).

Statistics shows that 3,4,5,6-Tetrafluorophthalonitrile is playing an increasingly important role. we look forward to future research findings about 1835-65-0.

Related Products of 21524-39-0, 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 21524-39-0 as follows.

Step A: 2-Azido-5-fluorobenzonitrile (1q): A mixture of NaN3(1.17 g, 1.8 mmol) and difluorobenzonitrile (0.5 g, 3.6 mmol) in DMA (60 mL) was heated at 100 C. for 30 minutes. The mixture was next diluted with water (300 mL) and ether (300 mL). The organic layer was washed three times with water and brine. The organic layer was dried (MgSO4) and concentrated. The crude product was purified by flash column chromatography using ether:hexane (1:5) as eluent to give the desired product (1q) as white crystals (0.3 g, 53% isolated yield). 1H NMR (400 MHz, CDCl3) delta 7.38-7.31 (m, 2H), 7.27-7.18 (m, 1H).

According to the analysis of related databases, 21524-39-0, the application of this compound in the production field has become more and more popular.

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. 214623-57-1, name is 5-Amino-2-methoxybenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., Formula: C8H8N2O

Example 9: 2-Methoxy-5-[5-(3-morpholin-4-ylphenoxy)-pyrimidin-2-ylamino]- benzonitrileA suspension of 4-[3-(2-chloro-pyrimidin-5-yloxy)phenyl]morpholine (180mg, 0.619mmol), 5-amino-2-methoxybenzonitrile(91.7mg, 0.557mmol), in’5′(dibenzylidene-acetone)palladium(0) (28.3mg, 0.030mmol), 4,5- bi5′(diphenylphosphino)-9,9-dimethyl-xanthene (35.8mg, 0.061mmol) and cesium carbonate (403mg, 1.238mmol) in degassed 1,4-dioxane (4mL) was heated at 80C for 2 days. The suspension was diluted with ethyl acetate and washed with water and brine. The organic phase was dried (MgS04) and the solvent was removed under reduced pressure. The crude product was purified by column chromatography on silica (ethyl acetate: hexane, 1:1) to afford 2-methoxy-5-[5-(3-morpholin-4-ylphenoxy)- pyrimidin-2-ylamino]-benzonitrile as solid (113mg, 46%).Mass: (ES+) 404 (M+H)+ HPLC: 99%NMR: deltaEta ( 6-DMSO) 3.08 (4H, m), 3.69 (4H, m), 3.88 (3H, s), 6.37 (1H, dd), 6.59 (1H, br s), 6.68 (1H, dd), 7.17 (1H, d), 7.20 (1H, t), 7.86 (1H, dd), 8.12 (1H, d), 8.38 (2H, s) and 9.80 (1H, s).

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 214623-57-1.

Electric Literature of 53312-81-5,Some common heterocyclic compound, 53312-81-5, name is 5-Amino-2-fluorobenzonitrile, molecular formula is C7H5FN2, 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.

Example 2: 2-Fluoro-5-[5-(3-morpholin-4-ylphenoxy)-pyrimidin-2-ylamino]- benzo-nitrile A suspension of 4-[3-(2-chloro-pyrimidin-5-yloxy)phenyl]morpholine (150 mg, 0.515 mmol), 5-amino-2-fluorobenzonitrile (70.2mg, 0.515mmol), in’5′(dibenzylideneacetone)-palladium(0) (23.6mg, 0.025mmol), 4,5- bi5′(diphenylphosphino)-9,9- dimethylxanthene (30mg, 0.0515mmol) and cesium carbonate (336mg, 1.03mmol) in degassed 1,4-dioxane (4mL) was heated at 80C for 2 days. The suspension was diluted with ethyl acetate and washed with water and brine. The organic phase was dried (MgS04) and the solvent removed under reduced pressure. The crude product was purified by column chromatography on silica (ethyl acetate:hexane 1: 1) to afford 2-fluoro-5-[5-(3-morpholin-4-ylphenoxy)pyrimidin-2- ylamino]benzonitrile as a light yellow solid (70mg, 35%).Mass: (ES+) 392 (M+H)+ HPLC: 97%NMR: 5H (d6-DMSO) 3.08 (4H, m), 3.69 (4H, m), 6.39 (1H, dd), 6.61 (1H, br s), 6.70 (1H, dd), 7.18 (1H, t), 7.47 (1H, t), 7.95 (1H, m), 8.30 (1H, m), 8.44 (2H, s) and 10.10 (1H, s).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Amino-2-fluorobenzonitrile, its application will become more common.

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 1187-42-4 as follows. HPLC of Formula: C4H4N4

General procedure: To a mixture of 2,3-diaminomaleonitrile (1 mmol) and corresponding aromatic aldehyde (1 mmol) in H2O (5 mL), cerium (IV) ammonium nitrate (5 molpercent) was added and the reaction mixture stirred at room temperature for the desired time, as shown in Table 3. After completion of the reaction (reaction progress was monitored by TLC, ethyl acetate/n-hexane, 3:1), cold water (5?10 mL) was addedand the solid was filtered and washed with cold water/ethanol and air-dried to give the Schiff base product.

According to the analysis of related databases, 1187-42-4, the application of this compound in the production field has become more and more popular.

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. 115279-57-7, name is 2-(4-Aminophenyl)-2-methylpropanenitrile, A new synthetic method of this compound is introduced below., category: nitriles-buliding-blocks

Example 1f 2-[4-(6-Bromo-3-nitro-quinolin-4-ylamino)-phenyl]-2-methyl-propionitrile 18 g (62.6 mmol) of 6-bromo-4-chloro-3-nitro-quinoline (Example 1c) and 11 g (68.9 mmol) of (2-(4-amino-phenyl)-2-methyl-propionitrile (Example 1e) are dissolved in 350 ml of acetic acid and stirred for 2 h. After this time, water is added and the yellow precipitate is filtered off and washed with H2O. The solid is dissolved in EtOAc-THF (1:1), washed with sat. aqueous NaHCO3 and dried over MgSO4. The organic phase is evaporated to dryness to give the title compound as a yellow solid. ES-MS: 411, 413 (M+H)+, Br pattern; analytical HPLC: tret=3.69 min (Grad 1).

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.