Category: amides-buliding-blocks

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 758-96-3 as follows. Computed Properties of C5H11NO

Weigh benzothiazole (0.5mmol, 67mg), K2S2O8 (2mmol, 0.54g) and Eosin Y (0.01mmol, 6.5mg) in a 25mL Schlenk reaction tube, and then add N, N-dimethylpropionamide (38mmol, 3.8g), placed under a 20W LED white light to react, stirred the reaction at room temperature, followed by TLC to monitor the progress of the reaction, the reaction was completed after 24 hours, the reaction solution was concentrated to remove the solvent, and the concentrated solution was separated by column chromatography (eluent Petroleum ether / ethyl acetate) in a volume ratio of 5: 1) to give a yellow oil, the derivative Ik. The yield was 66%.

According to the analysis of related databases, 758-96-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Zhejiang University of Technology; Weng Jianquan; Xu Wenxiu; Dai Xiaoqiang; Liu Xinghai; (11 pag.)CN110432282; (2019); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 316146-27-7, These common heterocyclic compound, 316146-27-7, name is N-(4-Bromophenyl)-3-phenylpropanamide, 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.

b) Preparation of intermediate 5; The reaction was carried out twice. POCl3 (1.225 mol) was added dropwise at 10¡ãC to DMF (0.525 mol). Then intermediate 4 (0.175 mol) was added at room temperature. The mixture was stirred overnight at 80¡ãC, poured out on ice and extracted with CH2Cl2. The organic layer was dried (MgSO4), filtered, and the solvent was evaporated. The product was used without further purification. Yield: 77.62 g of intermediate 5 (67 percent).

The synthetic route of 316146-27-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; JANSSEN PHARMACEUTICA N.V.; WO2007/14885; (2007); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 579474-47-8, name is tert-Butyl 2-amino-4-fluorophenylcarbamate, belongs to amides-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 579474-47-8, Product Details of 579474-47-8

Step 4. A mixture of tert-butyl 2-amino-4-fluorophenylcarbamate (2.70 g, 11.95 mmol), 4,6-dichloro-2-(methylsulfonyl)pyrimidine (2.71 g, 11.95 mmol) and DMSO (15 mmol) was stirred at ambient temperature overnight. The mixture was partitioned betweenethyl acetate and water. The organic phase was washed twice with water, then brine, dried over Mg504, then filtered and the remaining liquid evaporated. The residual tert-butyl 2-(6-chloro-2-(methylsulfonyl)pyrimidin-4-ylamino)-4-fluorophenylcarbamate was used directly in the next step.

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Reference:
Patent; PTC THERAPEUTICS, INC.; DU, Wu; BAIAZITOV, Ramil; LEE, Chang-sun; MOON, Young-Choon; PAGET, Steven, D.; REN, Hongyu; SYDORENKO, Nadiya; WILDE, Richard, Gerald; WO2015/30847; (2015); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

These common heterocyclic compound, 1882-71-9, name is 2-Amino-5-methoxybenzamide, 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. Product Details of 1882-71-9

General procedure: A 12mL vial was charged with MCM-41-2P-Pd(OAc)2 (2molpercent), 2-aminobenzamide (1mmol), aryl iodide (1mmol) (if solid) and a stirring bar. Then, DMF (2mL), aryl iodide (1mmol) (if liquid) and DBU (2mmol) were injected by syringe under an argon atmosphere. The vial was placed in an alloy plate, which was transferred into a 300mL Parr Instruments 4560 series autoclave under an argon atmosphere. After flushing the autoclave three times with CO, a pressure of 10bar CO was fixed at ambient temperature. The autoclave was heated for 20hat 120¡ãC. After completion of the reaction, the autoclave was cooled to room temperature and the pressure was released carefully. The reaction mixture was diluted with ethyl acetate (10mL) and filtered. The palladium catalyst was washed with distilled water (2¡Á5mL) and acetone (2¡Á5mL), and reused in the next run. The filtrate was concentrated in vacuo and the pure product was isolated by either washed with water, ethyl acetate and finally hexane or recrystallization from MeOH.

The synthetic route of 2-Amino-5-methoxybenzamide has been constantly updated, and we look forward to future research findings.

Reference:
Article; You, Shengyong; Huang, Bin; Yan, Tao; Cai, Mingzhong; Journal of Organometallic Chemistry; vol. 875; (2018); p. 35 – 45;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Related Products of 5349-24-6, These common heterocyclic compound, 5349-24-6, name is N-Butyl-2-chloroacetamide, 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: Compound 1,2,4-triazol-3-thiol (4) (0.01 mol) was dissolved in aqueous potassium hydroxide solution (0.61g in 100 ml distilled water) with stirring till a clear yellow color solution was obtained. It was filtered to remove any suspended impurities. Then various N-substituted-alpha-chloroacetanilides (0.01 mol) compound were dissolved in ethanol and added with shaking at 55C stirred for 4.5 h. Then the reaction mixture was left overnight and the next day, the separated solid was filtered and washed twice with cold distilled water to remove KCl, dried and recrystallized from dilute glacial acetic acid. In case of aliphatic N-substituted-alpha-chloroacetanilides, the amide was added at room temperature.

The synthetic route of 5349-24-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Rajoriya, Vaibhav; Kashaw, Varsha; Kashaw, Sushil K.; Letters in drug design and discovery; vol. 15; 5; (2018); p. 451 – 462;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 136927-63-4, name is Pyrrolo[1,2-a]pyrazin-1(2H)-one, A new synthetic method of this compound is introduced below., Quality Control of Pyrrolo[1,2-a]pyrazin-1(2H)-one

PREPARATION 20 1-chloropyrrolo[1,2-a]pyrazine (A compound of formula (BB)) To pyrrolo[1,2-a]pyrazin-1(2H)-one (0.35 g, 2.61 mmol) was added phosphorous oxychloride (4.0 g, 26.1 mmol). The reaction mixture was agitated for approximately 16 hours. The reaction mixture was then made alkaline by the addition of sodium bicarbonate. The reaction mixture was then extracted with hexane, washed with a saturated sodium bicarbonate solution, dried over MgSO4 and evaporated. The product was purified by recrystallization in hexane and cooled with a mixture of dry ice and acetone to give the title compound, 1-chloropyrrolo[1,2-a]pyrazine (71%), m.p. 56-57 C.

The synthetic route of 136927-63-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Syntex (U.S.A.) Inc.; US5041442; (1991); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 108468-00-4, name is 1-(N-Boc-aminomethyl)-4-(aminomethyl)benzene, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 1-(N-Boc-aminomethyl)-4-(aminomethyl)benzene

2,4-dichloro-3-nitroquinoline (150 mg, 0.617 mmol) was dispersed in anhydrous DCM (10 mL) and stirred at room temperature for 5 min before a solution of l-(N-Boc-aminomethyl)-4-(aminomethyl)benzene (146 mg, 0.617 mmol) in DCM (lOmL) with EbN (90pL) was added in dropwise. This mixture was then stirred at 20 C for 3 h, then added asolution of l-(N-Boc-aminomethyl)-4-(aminomethyl)benzene (90 mg) with EbN (90 uL) and was allowed to stir at 20 C for 24 h, where LCMS saw full conversion of the dichloro-nitro-quinoline. The reaction mixture was diluted with DCM to 25 mL and was washed with brine, which was extracted with 2x 50 mL DCM. The combined organic phases were dried with Na2S04, filtered, and concentrated before the crude product was purified by flash column chromatography on silica (hexane/ethyl acetate 3:2). Product containing fractions with single spot by TLC were pooled and concentrated to an orange oil that was further concentrated to an orange solid at 0.2 mbar. Yielded 246.9 mg (90%). Rf = 0.57 (hexane/ethyl acetate 1 : 1 (v/v)). UPLCMS of product (LC2, C’ is): Retention time = 4.58 min. Calculated mass of C22H23CIN4O4 = 442.14; Observed [M+Na:M+Na+2]? as m/z = 465.1/467.2 in a 3: 1 ratio. NMR (400 MHz, DMSO-d6) d 8.53 (d, J= 8.5 Hz, 1H), 8.48 (t, J= 6.3 Hz, 1H), 7.88- 7.81 (m, 2H), 7.67 (ddd, J= 8.4, 5.3, 2.9 Hz, 1H), 7.36 (t, J= 6.2 Hz, 1H), 7.21 (d, J= 8.3 Hz, 2H), 7.17 (d, J= 8.4 Hz, 2H), 4.41 (d, J= 6.1 Hz, 2H), 4.09 (d, J= 6.2 Hz, 2H), 1.38 (s, 9H).13C NMR (101 MHz, DMSO) d 155.8, 145.3, 144.4, 141.1, 139.5, 136.1, 132.3, 128.6, 127.0, 126.9, 126.7, 126.5, 123.1, 119.7, 77.8, 46.6, 43.0, 28.2.

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 108468-00-4.

Reference:
Patent; TORQUE THERAPEUTICS, INC.; ANDRESEN, Thomas Lars; HENRIKSEN, Jonas Rosager; KRAEMER, Martin Kisha; (217 pag.)WO2020/23680; (2020); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 154350-29-5, 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. 154350-29-5, name is Cyclopropanesulfonamide, This compound has unique chemical properties. The synthetic route is as follows.

Stage lc:oI IBocHN-SI Io[0182] Cyclopropanesulfonamide (5.0 g, 41.26 mmol, 1.0 eq.), triethylamine (8.62 g, 61.90 mmol, 1.5 eq.) and dichloromethane (50 mL) were charged in a 100 mL round bottom flask. Di-te/t-butyldicarbonate (10.8 g, 49.52 mmol, 1.2 eq.) and N,N- dimethylaminopyridine (252 mg, 2.06 mmol, 0.05 eq.) were added portion wise and the reaction mixture stirred at ambient temperature for 48 hours. The solvent was removed in vacuo and the residue diluted with water (20 mL). The aqueous phase was acidified to pH = 1 with 1M hydrochloric acid, and extracted with ethyl acetate (3 x 100 mL). The organic extracts were combined, washed with water (100 mL) and brine (100 mL), dried over magnesium sulfate, filtered and the solvent removed in vacuo to give 9.1 g (99percent yield) of the title compound as a white solid. 1H NMR (500 MHz, CDC13) delta ppm 7.14 (br. s., 1 H) 2.90 (tt, 7=8.09, 4.73 Hz, 1 H) 1.50 – 1.54 (m, 9 H) 1.35 – 1.40 (m, 2 H) 1.09 – 1.15 (m, 2 H). LC-MS: purity 100percent (UV), tR 1.62 min m/z [M+Na]+ 243.95 (MET/CR/1278).

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

Reference:
Patent; INTERMUNE, INC.; BUCKMAN, Brad; NICHOLAS, John, B.; SEREBRYANY, Vladimir; SEIWERT, Scott, D.; WO2012/37259; (2012); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 112257-19-9, name is tert-Butyl methyl(2-(methylamino)ethyl)carbamate belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C9H20N2O2

The N- (4- fluoro-2-methoxy-5-nitrophenyl) -4- (1-methyl -1H- indol-3-yl) -5- (trifluoromethyl) pyrimidin – 2-Amine (922mg, 1.0eq), single-Boc protected -N, N’- dimethylethylenediamine (500mg), diisopropylethylamineAmine (2ml), trifluoroethanol were added to a microwave tube 20ml, 100 microwave reaction 2h, the solvent evaporated under reduced pressure,Flash column chromatography to obtain 2 – ((5-methoxy-4- (4- (1-methyl -1H- indol-3-yl) -5- (trifluoromethyl) pyrimidin-2-yl-amineYl) -2-nitrophenyl) (methyl) amino) ethyl (methyl) carbamic acid tert-butyl ester (1.13g, 90percent yield).

The synthetic route of 112257-19-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Qilu Pharmaceutical Co., Ltd.; Zhang, Long; Zhao, Shuyong; Chen, Chuanwen; Zhou, Haojie; Yang, Yingying; Chen, Dong; Zheng, Qingmei; Li, Yuhao; Zheng, Shansong; (57 pag.)CN105461695; (2016); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 5466-88-6, name is 2H-1,4-Benzoxazin-3(4H)-one, A new synthetic method of this compound is introduced below., SDS of cas: 5466-88-6

General procedure: Phosphoric acid (3.15 g, 0.032 mol) and TFAA (21.8 mL, 0.104 mol) were added to the mixture of 4H-Benzo [1,4]oxazin-3-one (4 g, 0.026 mol) and substituted phenylacetic acid (1.1eq), at 0 C. After completion of addition, the mixture was allowed to warm to room temperature and stirred for 1 h. The reaction mixture was cooled to 0 C and adjusted the pH to 7 by adding the saturated NaHCO3 solution. The precipitated solid was filtered, washed with water and dried to give the desired product.

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:
Article; Rajitha, Chittipaka; Dubey; Sunku, Venkataiah; Javier Piedrafita; Veeramaneni, Venugopal Rao; Pal, Manojit; European Journal of Medicinal Chemistry; vol. 46; 10; (2011); p. 4887 – 4896;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics