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. 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.

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.

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.

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.

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.

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.

Reference of 194853-86-6, These common heterocyclic compound, 194853-86-6, name is 4-Fluoro-2-(trifluoromethyl)benzonitrile, 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 DMSO (0.5 mL) solution of 4-fluoro-2- (trifluoromethyl) benzonitrile (0.050 g, 0.26 MMOL, 1 equiv) was treated with cesium carbonate (0.120 g, 0.37 MMOL, 1.4 equiv) and N- (cyclopropylmethyl)-N-propylamine (0.035 g, 0.31 mmol, 1.2 equiv). After 3 h at 90C, the cooled reaction was treated with H2O (1 mL), and extracted with EtOAc (3x 1 mL). Concentration was followed by radial chromatography (SIO2, 1 mm plate, 90: 10; Hex/EtOAc) to afford the title compound as a white solid (0.060 g, 81%) : 1H NMR (CDCI3, 400 MHz) 8 7.51 (d, J = 9.1 Hz, 1 H), 7.00 (d, J = 2.7 Hz, 1 H), 6.84 (dd, J = 9. 0,2. 6 Hz, 1 H), 3.34 (t, J = 7. 7 Hz, 2H), 3.24 (d, J = 6. 4 Hz, 2H), 1.63 (sex, J = 7. 5 HZ, 2H), 1.02 (sept, J = 5. 4 Hz, 1 H), 0.95 (t, J = 7. 4 Hz, 3H), 0.59 (q, J = 5. 7 Hz, 2H), 0.27 (q, J = 5. 0 Hz, 2H).

The synthetic route of 194853-86-6 has been constantly updated, and we look forward to future research findings.

Reference of 127946-77-4, 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. 127946-77-4, name is 1-Amino-1-cyclopropanecarbonitrile hydrochloride belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 41C) (4.83 g, 10.3 mmol, Eq: 1.00) was dissolved in acetonitrile (40 ml). HATU (7.84 g, 20.6 mmol, Eq: 2.00), DIEA (2.66 g, 3.6 ml, 20.6 mmol, Eq: 2.00) and 1- aminocyclopropane-carbonitrile hydrochloride (1.47 g, 12.4 mmol, Eq: 1.20) were added to the solution and stirred at 22C for 2 h. The reaction mixture was poured into aqueous 0.1 M HC1 (100 ml) and extracted with dischloromethane (3 x 75 mL). The organic layers were dried over Na2S04 and concentrated in vacuo. The crude material was purified by flash chromatography (silica gel, 120 g, 0% to 60% AcOEt in heptane) to yield a white solid (3.2 g; 58%). m/z = 531.9 [M-H]

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

Related Products of 6136-68-1,Some common heterocyclic compound, 6136-68-1, name is 3-Acetylbenzonitrile, molecular formula is C9H7NO, 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: To a solution of acetophenones 1-6 (16.65 mmol) in 2-Metetrahydrofuran(20 mL), copper(II)bromide (19.98 mmol)was added (Raghunath et al. 2015). The reaction mixturewas allowed to stir at room temperature for 24 h. Aftercompletion of the reaction (monitored by TLC), reactionmixture was filtered off. The filtrate containing the 2-bromo-1-phenylethanones 7-12 was taken to the next stepwithout isolation. However, to check the purity of theformed phenacyl bromides, two representative compounds(8 and 10) were isolated in standard procedure by evaporatingthe solvent under vacuum and confirmed by spectralanalysis (1H NMR, Mass, and HPLC). As all the derivativeswere pure by TLC, they were preceded to next step withoutpurification/isolation.

The synthetic route of 6136-68-1 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 67515-59-7, name is 4-Fluoro-3-(trifluoromethyl)benzonitrile, belongs to nitriles-buliding-blocks 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 67515-59-7, Safety of 4-Fluoro-3-(trifluoromethyl)benzonitrile

Preparation No.44: Preparation of 4-(4-fluoropiperidin-l-yl)-3- (trifluoromethyl)benzonitrile:; In a 200 mL round bottom flask, 4-fluoro-3-trifluoromethyl-benzonitrile (5.43 g, 28.7 mmol), 4-fluoropiperidine hydrochloride (4.407 g, 31.6 mmol), and potassium carbonate (9.92 g, 71.7 mmol) in DMF (50 mL) were added to give a tan suspension. The mixture was heated at about 90 C for about 40 h. After cooling to ambient temperature, the reaction mixture was partitioned between water (75 mL) and ethyl acetate (75 mL). The organic layer was washed with water (50 mL) and brine (50 mL). The organic layer was dried over anhydrous magnesium sulfate and the solvent was removed in vacuo. The crude material was purified via gradient normal phase chromatography on silica gel (0% to 100% ethyl acetate in heptane over 6 column volumes) to afford 4-(4-fluoropiperidin- 1 -yl)-3-(trifluoromethyl)benzonitrile (4.87 g, 17.9 mmol, 62% yield). LC/MS Rf = 7.51 min.; MS m/z : (M+H+AcOH)+. (Table 1, Method n). .H NMR (400 MHz, DMSO-4) ppm 8.17 (d, J = 1.98, 1H), 8.06 (dd, J = 2.01, 8.51, 1H), 7.59 (d, J= 8.53, 1H), 4.87 (tdd, J = 3.26, 6.66, 48.35, 1H), 3.13 (t, J= 10.01, 2H), 3.02-2.92 (m, 2H), 2.07-1.78 (m, 4H).

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, 4-Fluoro-3-(trifluoromethyl)benzonitrile, other downstream synthetic routes, hurry up and to see.