Category: 1882-71-9

Reference of 1882-71-9,Some common heterocyclic compound, 1882-71-9, name is 2-Amino-5-methoxybenzamide, molecular formula is C8H10N2O2, 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 mixture of 2-aminobenzamide (1, 4.0 mmol), carboxamide (2, 6.0 mmol), Yb(OTf)3 (0.20 mmol,5.0 molpercent), and mesitylene (5.0 mL) was placed in a 20-mL Pyrex flask equipped with a magnetic stirring bar and a reflux condenser under a flow of argon. The reaction was carried out at 120-165 oC (bath temp.) for 6 h with stirring. Then, the reaction mixture was cooled to room temperature, and analyzed by GLC, GC-MS (EI), and LC-MS (ESI). After evaporation of mesitylene under vacuum,the products (3) were isolated by recrystallization from MeOH/hexane and/or medium pressure column chromatography on silica gel (eluent: EtOAc/hexane = 50/50 ~ EtOAc 100percent. For 3j, eluent:MeOH/CHCl3 = 50/50). 1H NMR spectra were recorded at 400 MHz, and 13C NMR spectra wererecorded at 100 MHz in DMSO-d6. The analytical and spectral data of 3a-e,38 3f,39 3g,40 3h,41 and3j,42 were consistent with those reported previously. The product, 3i, was characterized below.

The synthetic route of 1882-71-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Yoshimura, Tsutomu; Yuanjun, Di; Kimura, Yu; Yamada, Hisatsugu; Toshimitsu, Akio; Kondo, Teruyuki; Heterocycles; vol. 90; 2; (2015); p. 857 – 865;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Reference of 1882-71-9,Some common heterocyclic compound, 1882-71-9, name is 2-Amino-5-methoxybenzamide, molecular formula is C8H10N2O2, 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 mixture of 2-aminobenzamide (1, 4.0 mmol), carboxamide (2, 6.0 mmol), Yb(OTf)3 (0.20 mmol,5.0 molpercent), and mesitylene (5.0 mL) was placed in a 20-mL Pyrex flask equipped with a magnetic stirring bar and a reflux condenser under a flow of argon. The reaction was carried out at 120-165 oC (bath temp.) for 6 h with stirring. Then, the reaction mixture was cooled to room temperature, and analyzed by GLC, GC-MS (EI), and LC-MS (ESI). After evaporation of mesitylene under vacuum,the products (3) were isolated by recrystallization from MeOH/hexane and/or medium pressure column chromatography on silica gel (eluent: EtOAc/hexane = 50/50 ~ EtOAc 100percent. For 3j, eluent:MeOH/CHCl3 = 50/50). 1H NMR spectra were recorded at 400 MHz, and 13C NMR spectra wererecorded at 100 MHz in DMSO-d6. The analytical and spectral data of 3a-e,38 3f,39 3g,40 3h,41 and3j,42 were consistent with those reported previously. The product, 3i, was characterized below.

The synthetic route of 1882-71-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Yoshimura, Tsutomu; Yuanjun, Di; Kimura, Yu; Yamada, Hisatsugu; Toshimitsu, Akio; Kondo, Teruyuki; Heterocycles; vol. 90; 2; (2015); p. 857 – 865;,
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. 1882-71-9, name is 2-Amino-5-methoxybenzamide, A new synthetic method of this compound is introduced below., Product Details of 1882-71-9

General procedure: A solution of anthranilamide (30 mmol) in 1 N HCl (120 mL) was stirred at 0 C for 20 min. Then, sodium nitrite (60 mmol) dissolved in deionized water (100 mL) was added dropwise to the above solution for 40 min. After another 2 h of stirring at 0 C, 30% NaOH solution was added slowly to adjust the pH to 8.0. The reaction mixture was allowed to stir vigorously for 15 min. The precipitated product was filtered off with suction, washed with deionized water (200 mL), and dried to afford compound 4 in yield of 82%.

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; Chen, Xiulei; Jia, Haowu; Li, Zhong; Xu, Xiaoyong; Chinese Chemical Letters; vol. 30; 6; (2019); p. 1207 – 1213;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Some common heterocyclic compound, 1882-71-9, name is 2-Amino-5-methoxybenzamide, molecular formula is C8H10N2O2, 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. SDS of cas: 1882-71-9

General procedure: 2-aminobenzamide (1, 1.0 mmol), 1,3-diketone (2, 1.5 mmol), Yb(OTf)3 (0.050 mmol, 5.0 molpercent),and mesitylene (2.0 mL) was placed in a 20-mL Pyrex flask equipped with a magnetic stirring bar and a reflux condenser under a flow of argon. The reaction was carried out at 60°C (bath temp.) for 24 h with stirring. The reaction mixture was then cooled to room temperature and analyzed by GLCand GC-MS. The product 3 was isolated by medium-pressure column chromatography on silica gel(eluent: EtOAc/hexane = 30/70 ~ EtOAc 100percent. For 3j, eluent: MeOH/CHCl3 = 30/70 ~ 50/50) andrecrystallization from MeOH/hexane. The products 3l and 3m were isolated by recrystallizationfrom EtOAc/hexane. 1H NMR spectra were recorded at 400 MHz, and 13C NMR spectra wererecorded at 100 MHz in DMSO-d6 (For 3j, in a mixture of DMSO-d6 and methanol-d4). Elemental analyses were performed at the Microanalytical Center of Kyoto University. The analytical and spectral data of 3a,10 3b-c,11 3d,12 3e,13 3f,14 3g-h,10 and 3j-l,7 are fully consistent with those reported previously. The products 3i,15 and 3m16 were characterized below.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1882-71-9, its application will become more common.

Reference:
Article; Yoshimura, Tsutomu; Naito, Shun-Ichi; Yuanjun, Di; Son, Aoi; Kimura, Yu; Toshimitsu, Akio; Kondo, Teruyuki; Heterocycles; vol. 93; 2; (2016); p. 816 – 823;,
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

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. 1882-71-9, name is 2-Amino-5-methoxybenzamide belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. name: 2-Amino-5-methoxybenzamide

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 1882-71-9 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

1882-71-9, The chemical industry reduces the impact on the environment during synthesis 1882-71-9, name is 2-Amino-5-methoxybenzamide, I believe this compound will play a more active role in future production and life.

General procedure: A mixture of 2-aminobenzamide (1, 4.0 mmol), carboxamide (2, 6.0 mmol), Yb(OTf)3 (0.20 mmol,5.0 molpercent), and mesitylene (5.0 mL) was placed in a 20-mL Pyrex flask equipped with a magnetic stirring bar and a reflux condenser under a flow of argon. The reaction was carried out at 120-165 oC (bath temp.) for 6 h with stirring. Then, the reaction mixture was cooled to room temperature, and analyzed by GLC, GC-MS (EI), and LC-MS (ESI). After evaporation of mesitylene under vacuum,the products (3) were isolated by recrystallization from MeOH/hexane and/or medium pressure column chromatography on silica gel (eluent: EtOAc/hexane = 50/50 ~ EtOAc 100percent. For 3j, eluent:MeOH/CHCl3 = 50/50). 1H NMR spectra were recorded at 400 MHz, and 13C NMR spectra wererecorded at 100 MHz in DMSO-d6. The analytical and spectral data of 3a-e,38 3f,39 3g,40 3h,41 and3j,42 were consistent with those reported previously. The product, 3i, was characterized below.

The chemical industry reduces the impact on the environment during synthesis 2-Amino-5-methoxybenzamide. I believe this compound will play a more active role in future production and life.

Reference:
Article; Yoshimura, Tsutomu; Yuanjun, Di; Kimura, Yu; Yamada, Hisatsugu; Toshimitsu, Akio; Kondo, Teruyuki; Heterocycles; vol. 90; 2; (2015); p. 857 – 865;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

1882-71-9, 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. 1882-71-9, name is 2-Amino-5-methoxybenzamide belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 29: (4-Chloro-phenyl)-{4-[4-hydroxy-l-(6-methoxy-2-trifluoromethyl- quinazolin-4-yl)-pyrrolidin-3-yl]-piperazin-l-yl}-methanone[00236] Step 1 : 6-methoxy -2-trifluoromethyl-3H-quinazolin-4-one[00237] To 2.99 mmoles of 2-amino-5-methoxy anthranilic acid in 1OmL acetonitrile, add 14.9 mmoles of pyridine. The reaction mixture was cooled in ice and then 8.97 mmoles of trifluoroacetic EPO anhydride was added to the reaction mixture and it was slowly warmed to room temperature and allowed to stir for 2 hours. This reaction mixture was added to an ice cooled suspension of 11.96 mmoles ammonium carbonate in 5mL acetonitrile and it was allowed to warm to room temperature and stirred overnight. The reaction mixture was concentrated to a thick oil, 1OmL acetic acid was added to the residue and it was heated at 118-1200C for 2.5-3 hours. The reaction mixture was concentrated and then a 1:1 soln of ethanol-water was added, the white solid obtained was filtered and washed with fresh cold ethanol-water and vaccum dried to yield the title compound in 74 percent yield. LC-MS: m/z= 245 (M+ +1)

The synthetic route of 1882-71-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; MILLENNIUM PHARMACEUTICALS, INC.; WO2006/71875; (2006); A1;,
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. 1882-71-9, name is 2-Amino-5-methoxybenzamide, A new synthetic method of this compound is introduced below., 1882-71-9

General procedure: To a cold (0?5 ¡ãC) stirred suspension of aminobenzamides 15a?f and 20a,b (0.016 mol) in pyridine (13 mL), 0.016 mol of the appropriate phenoxyacetyl chloride 16a?e was added over 30 min. After addition was complete, the solution was stirred for24 h and then poured onto crushed ice. The precipitate was removed by filtration, washed with water, and crystallized from the indicated solvent.

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; Raffa, Demetrio; Maggio, Benedetta; Plescia, Fabiana; Cascioferro, Stella; Raimondi, Maria Valeria; Cancemi, Gabriella; D’Anneo, Antonella; Lauricella, Marianna; Cusimano, Maria Grazia; Bai, Ruoli; Hamel, Ernest; Daidone, Giuseppe; Bioorganic and Medicinal Chemistry; vol. 23; 19; (2015); p. 6305 – 6316;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

1882-71-9, Adding some certain compound to certain chemical reactions, such as: 1882-71-9, name is 2-Amino-5-methoxybenzamide, 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 1882-71-9.

General procedure: In a sealed tube equipped with a magnetic bar was charged with 2-amino benzamide derivatives (1, 3.67 mmol), cyclic 1,3-diones (2, 3.67 mmol) and TsOH.H2O (1.83mmol) in m-Xylene (5 mL). The reaction mixture was stirred at 150 ¡ãC for 8 h. After completion of the reaction, the reaction mass was cooled to room temperature, diluted with EtOAc, gave a water wash and the organic layer was dried over anhydrous Na2SO4 and concentrated in vacuo. The crude product was purified by flash column chromatography (eluent: ethyl acetate/ n-hexane = 10?90) on silica gel to afford the desired product (4a-k).

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 1882-71-9.

Reference:
Article; Bingi, Chiranjeevi; Kola, Kaushik Yadav; Kale, Ashok; Nanubolu, Jagadeesh Babu; Atmakur, Krishnaiah; Tetrahedron Letters; vol. 58; 11; (2017); p. 1071 – 1074;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics