Category: 706791-83-5

Application of 706791-83-5, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 706791-83-5 name is Methyl 3-amino-5-bromobenzoate, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To a solution of methyl 3-amino-5-bromobenzoate (61b, 219 mg, 0.950 mmol) in 1,4-dioxane (20 mL) were added bis(pinacolato)diboron (290 mg, 1.14 mmol), PdCl2(dppf) (23 mg, 28.5 pmol) and potassium acetate (279 mg, 2.85 mmol), and then this reaction mixture was stirred at 95 C for 15 h. The reaction mixture was partitioned ethyl acetate (20 mL) and water (10 mL), and the aqueous layer was extracted with ethyl acetate (10 mL x 2). The combined organic layer was washed brine (5 mL), dried over MgS04, filtered and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=4: l) to afford compound 62 (180 mg, 68%) as a white solid; NMR (400 MHz, CDC13) d 7.88 (s, 1H), 7.46 (s, 1H), 7.31 (d, J =2.4 Hz, 1H), 3.91 (s, 3H), 1.36 (s, 12H); MS (ESI, m/z) 278.2 [M+l]+; ESI-HRMS calcd. m/z for (0572) Ci4H2iN04nB 278.1564, found 278.1565 [M+l]+.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, Methyl 3-amino-5-bromobenzoate, and friends who are interested can also refer to it.

Reference:
Patent; THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES; JACOBSON, Kenneth A.; YU, Jinha; CIANCETTA, Antonella; WEN, Zhiwei; JUNG, Young-Hwan; (124 pag.)WO2019/157417; (2019); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Reference of 706791-83-5,Some common heterocyclic compound, 706791-83-5, name is Methyl 3-amino-5-bromobenzoate, molecular formula is C8H8BrNO2, 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.

TEA (0.909 ml_, 6.52 mmol) was added to a mixture of propionic acid (0.21 1 ml_, 2.83 mmol) and HATU (1 .157 g, 3.04 mmol) in DMF (1 .0 ml_). After 20 min, methyl 3-amino-5- bromobenzoate (CAS 706791 -83-5) (0.5 g, 2.173 mmol) was added and the resulting mixture was stirred at room temperature for 18 h. The reaction was diluted with EtOAc and water. The aqueous phase was extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2S04, filtered and concentrated. The crude material was purified by flash column chromatography on silica gel (heptane/EtOAc = 100:0 to 0: 100) to give the title compound. 1 H NMR (400 MHz, CHLOROFORM-c/) delta ppm 8.20 (s, 1 H), 7.91 (app. d, J=2.0 Hz, 2 H), 7.15 (br. s. , 1 H), 3.93 (s, 3 H), 2.42 (q, J=7.5 Hz, 2 H), 1 .27 (t, J=7.6 Hz, 3 H).

The synthetic route of 706791-83-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NOVARTIS AG; BELANGER, David B.; FLOHR, Stefanie; GELIN, Christine Fang; JENDZA, Keith; JI, Nan; LIU, Donglei; LORTHIOIS, Edwige Liliane Jeanne; KARKI, Rajeshri Ganesh; MAINOLFI, Nello; POWERS, James J.; RANDL, Stefan Andreas; ROGEL, Olivier; VULPETTI, Anna; YOON, Taeyoung; WO2015/9977; (2015); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Application of 706791-83-5,Some common heterocyclic compound, 706791-83-5, name is Methyl 3-amino-5-bromobenzoate, molecular formula is C8H8BrNO2, 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 3,5-dimethylisoxazol-4-yl)boronic acid (123 mg, 0.869 mmol) and methyl 3-amino-5-bromobenzoate (200 mg, 0.869 mmol) in dimethoxyethane was added sodium carbonate powder (193 mg, 1.83 mmol) in water (1 ml) and palladium tetrakis(triphenylphosphine) catalyst (30 mg, 3 mol%). The reaction mixture was degassed by sparging with a stream of nitrogen and then refluxed for 16 h. The cooled reaction mixture was partitioned between water and ethyl acetate, the organic layer was dried over sodium sulfate, filtered, concentrated and then purified by flash chromatography (1:1 ethyl acetate/hexanes) to give methyl 3-amino-5-(3,5-dimethylisoxazol-4-yl)benzoate as a pale-yellow solid (190 mg, 89%). MS-ESI: m/z calculated for (C13H14N2O3 + H)+ 247.1, found 246.8. 1H NMR (600 MHz, d6-DMSO) delta 7.20 (s, 1H), 7.01 (s, 1H), 6.78 (s, 1H), 5.54 (s, 2H), 3.82 (s, 3H), 2.38 (s, 3H), 2.20 (s, 3H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route Methyl 3-amino-5-bromobenzoate, its application will become more common.

Reference:
Article; Poncet-Montange, Guillaume; Zhan, Yanai; Bardenhagen, Jennifer P.; Petrocchi, Alessia; Leo, Elisabetta; Shi, Xi; Lee, Gilbert R.; Leonard, Paul G.; Geck Do, Mary K.; Cardozo, Mario G.; Andersen, Jannik N.; Palmer, Wylie S.; Jones, Philip; Ladbury, John E.; Biochemical Journal; vol. 466; (2015); p. 337 – 346;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Related Products of 706791-83-5, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 706791-83-5 name is Methyl 3-amino-5-bromobenzoate, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To a solution of methyl 3-amino-5-bromobenzoate (61b, 219 mg, 0.950 mmol) in 1,4-dioxane (20 mL) were added bis(pinacolato)diboron (290 mg, 1.14 mmol), PdCl2(dppf) (23 mg, 28.5 pmol) and potassium acetate (279 mg, 2.85 mmol), and then this reaction mixture was stirred at 95 C for 15 h. The reaction mixture was partitioned ethyl acetate (20 mL) and water (10 mL), and the aqueous layer was extracted with ethyl acetate (10 mL x 2). The combined organic layer was washed brine (5 mL), dried over MgS04, filtered and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=4: l) to afford compound 62 (180 mg, 68%) as a white solid; NMR (400 MHz, CDC13) d 7.88 (s, 1H), 7.46 (s, 1H), 7.31 (d, J =2.4 Hz, 1H), 3.91 (s, 3H), 1.36 (s, 12H); MS (ESI, m/z) 278.2 [M+l]+; ESI-HRMS calcd. m/z for (0572) Ci4H2iN04nB 278.1564, found 278.1565 [M+l]+.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, Methyl 3-amino-5-bromobenzoate, and friends who are interested can also refer to it.

Reference:
Patent; THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES; JACOBSON, Kenneth A.; YU, Jinha; CIANCETTA, Antonella; WEN, Zhiwei; JUNG, Young-Hwan; (124 pag.)WO2019/157417; (2019); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Electric Literature of 706791-83-5,Some common heterocyclic compound, 706791-83-5, name is Methyl 3-amino-5-bromobenzoate, molecular formula is C8H8BrNO2, 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.

TEA (0.909 ml_, 6.52 mmol) was added to a mixture of propionic acid (0.21 1 ml_, 2.83 mmol) and HATU (1 .157 g, 3.04 mmol) in DMF (1 .0 ml_). After 20 min, methyl 3-amino-5- bromobenzoate (CAS 706791 -83-5) (0.5 g, 2.173 mmol) was added and the resulting mixture was stirred at room temperature for 18 h. The reaction was diluted with EtOAc and water. The aqueous phase was extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2S04, filtered and concentrated. The crude material was purified by flash column chromatography on silica gel (heptane/EtOAc = 100:0 to 0: 100) to give the title compound. 1 H NMR (400 MHz, CHLOROFORM-c/) delta ppm 8.20 (s, 1 H), 7.91 (app. d, J=2.0 Hz, 2 H), 7.15 (br. s. , 1 H), 3.93 (s, 3 H), 2.42 (q, J=7.5 Hz, 2 H), 1 .27 (t, J=7.6 Hz, 3 H).

The synthetic route of 706791-83-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NOVARTIS AG; BELANGER, David B.; FLOHR, Stefanie; GELIN, Christine Fang; JENDZA, Keith; JI, Nan; LIU, Donglei; LORTHIOIS, Edwige Liliane Jeanne; KARKI, Rajeshri Ganesh; MAINOLFI, Nello; POWERS, James J.; RANDL, Stefan Andreas; ROGEL, Olivier; VULPETTI, Anna; YOON, Taeyoung; WO2015/9977; (2015); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Related Products of 706791-83-5,Some common heterocyclic compound, 706791-83-5, name is Methyl 3-amino-5-bromobenzoate, molecular formula is C8H8BrNO2, 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 7 mL vial was added a carboxylic acid compound (332 mg, 1.2 mmol), methyl 3-amino-5-bromobenzoate (270 mg, 1.2 eq)EDCI (3.0 eq), HOBt (3.0 eq) and DIPEA (3.0 eq) were dissolved in DMF (0.3 M) and stirred at room temperature for 16 hRespectively. After completion of the reaction, the mixture was extracted three times with a mixed solvent of H2O / EA, and the organic layer was washed with saturated sodium carbonate. The organic layerAfter drying with MgSO4, the solvent was concentrated under reduced pressure, and a silica gel column was carried out to obtain the title compound (475 mg, 83%)

The synthetic route of 706791-83-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; YONSEI University Office of Research Affairs / University Industry Foundation; Korea Research Institute of Chemical Technology; Jang Seong-yeon; Lee Hyeok; Kim Seong-hwan; Kim Beom-tae; Kim Seong-su; Huh Jeong-nyeong; Im Hwan-jeong; Im Seung-gil; Kang Myeong-mo; Noh Gyeong-tae; Lee Gyeong-ro; Choi Ji-won; (147 pag.)KR2017/94087; (2017); A;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics