Category: 58584-86-4

Synthetic Route of 58584-86-4 ,Some common heterocyclic compound, 58584-86-4, molecular formula is C8H7Cl2NO2, 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.

The first step of Scheme 5: A dry round bottom flask was charged with NaH (264 mg of a 60% dispersion in mineral oil, 6.6 mmole) and the reagent washed twice with hexane. 5 mL dry DMF was added and benzyl alcohol (0.62 mL, 6.0 mmole) was added dropwise. After H2 evolution had ceased the reaction mixture was added dropwise to a 0 C. solution (10 mL) of 2,6-dichloro-nicotinic acid ethyl ester (1.33 g, 6.0 mmole). It was stirred 15 minutes, and then allowed to stir another 20 minutes at room temperature. The reaction mixture was then poured into 150 mL water and extracted with ether (3×75 mL). Combined organic phases were washed with water, brine and dried over MgSO4. Filtration and evaporation gave the crude product which was then purified by chromatography on silica gel using a gradient of hexane/EtOAc (0 to 4%) as eluent. Pure fractions were combined and evaporated to give 818 mg (47%) of a 1:1 mixture of 2-benzyloxy-6-chloro-nicotinic acid ethyl ester and 6-benzyloxy-2-chloro-nicotinic acid ethyl ester.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,58584-86-4, its application will become more common.

Reference:
Patent; Lee, Jinbo; Kirincich, Steve J.; Smith, Michael J.; Wilson, Douglas P.; Follows, Bruce C.; Wan, Zhao-Kui; Joseph-McCarthy, Diane M.; Erbe, David V.; Zhang, Yan-Ling; Xu, Weixin; Tam, Steve Y.; US2005/203081; (2005); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 58584-86-4, 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. 58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, The 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.

Ethyl 2,6-dichloropyridine-3-carboxylate (7.00 g, 31.81 mmol) and (6-isopropoxy-3-pyridyl)boronic acid (5.04 g, 27.85 mmol) were combined and dissolved in ethanol (50.40 mL) and toluene (50.40 mL). A suspension of sodium carbonate (10.12 g, 95.47 mmol) in water (10.08 mL) was added. Under nitrogen, tetrakis(triphenylphosphine)palladium (1.103 g, 0.9547 mmol) was added. The reaction mixture was allowed to warm to 80 C. and stirred for 2 h. The volatiles were removed under reduced pressure. The remaining solids were partitioned between water (75 mL) and ethyl acetate (75 mL). The organic layer was washed with saturated aqueous sodium chloride solution (1×75 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The material was subjected to silica gel column chromatography using a gradient from 100% hexanes to 5% ethyl acetate in hexanes. Ethyl 2-chloro-6-(6-isopropoxy-3-pyridyl)pyridine-3-carboxylate (3.95 g, 12.07 mmol, 43.33%) was obtained as a clear colorless oil. 1H NMR (400 MHz, DMSO) delta 8.91 (s, 1H), 8.37 (dd, J=8.7, 2.3 Hz, 1H), 8.30 (d, J=8.1 Hz, 1H), 8.10 (d, J=8.1 Hz, 1H), 6.89 (d, J=8.7 Hz, 1H), 5.34 (dt, J=12.3, 6.1 Hz, 1H), 4.36 (q, J=7.1 Hz, 2H), 2.51 (d, J=1.7 Hz, 1H), 1.42-1.30 (m, 9H). ESI-MS m/z calc. 320.09277. found 321.2 (M+1)+. Retention time: 0.72 minutes.

According to the analysis of related databases, 58584-86-4, the application of this compound in the production field has become more and more popular.

Reference:
Patent; VERTEX PHARMACEUTICALS INCORPORATED; Miller, Mark Thomas; Anderson, Corey; Arumugam, Vijayalaksmi; Bear, Brian Richard; Binch, Hayley Marie; Clemens, Jeremy J.; Cleveland, Thomas; Conroy, Erica; Coon, Timothy Richard; Frieman, Bryan A.; Grootenhuis, Peter Diederik Jan; Gross, Raymond Stanley; Hadida-Ruah, Sara Sabina; Haripada, Khatuya; Joshi, Pramod Virupax; Krenitsky, Paul John; Lin, Chun-Chieh; Marelius, Gulin Erdgogan; Melillo, Vito; McCartney, Jason; Nicholls, Georgia McGaughey; Pierre, Fabrice Jean Denis; Silina, Alina; Termin, Andreas P.; Uy, Johnny; Zhou, Jinglan; (590 pag.)US2016/95858; (2016); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 58584-86-4 , The common heterocyclic compound, 58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, 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 mixture of 3-(dispiro[2.0.2. l]heptan-7-ylmethoxy)-lH-pyrazole (0.94 g, 4.9 mmol), ethyl 2,6-dichloropyridine-3-carboxylate (1.15 g, 5.23 mmol), potassium carbonate (0.83 g, 6.0 mmol), and l,4-diazabicyclo[2.2.2]octane (0.12 g, 1.1 mmol) in DMSO (16 mL) was stirred for 24 hours. The reaction was diluted with water and extracted with ethyl acetate. The combined extracts were washed with brine and water, dried over sodium sulfate, and evaporated under vacuum. The residue was purified by silica gel column chromatography eluting with 0-20% ethyl acetate in hexanes to give ethyl 2-chloro-6-(3-(dispiro[2.0.2.1]heptan-7-ylmethoxy)-lH-pyrazol-l-yl)nicotinate (1.39 g, 75% yield) as a colorless solid. ESI-MS m/z calc. 373.11932, found 374.2 (M+l)+; Retention time: 0.87 minutes. *H NMR (400 MHz, Chloroform-d) delta 8.36 (d, J = 2.8 Hz, 1H), 8.27 (d, J = 8.5 Hz, 1H), 7.72 (d, J = 8.5 Hz, 1H), 5.96 (d, J = 2.9 Hz, 1H), 4.41 (q, J = 7.1 Hz, 2H), 4.30 (d, J = 7.0 Hz, 2H), 1.94 (t, J = 7.0 Hz, 1H), 1.42 (t, J = 7.1 Hz, 3H), 1.02-0.89 (m, 4H), 0.75-0.65 (m, 2H), 0.65-0.53 (m, 2H)

The synthetic route of 58584-86-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; VERTEX PHARMACEUTICALS INCORPORATED; ALCACIO, Timothy; BAEK, Minson; GROOTENHUIS, Peter; HADIDA RUAH, Sara, Sabina; HUGHES, Robert, M.; KESHAVARZ-SHOKRI, Ali; MCAULEY-AOKI, Rachel; MCCARTNEY, Jason; MILLER, Mark, Thomas; VAN GOOR, Fredrick; ZHANG, Beili; ANDRESON, Corey; CLEVELAND, Thomas; FRIEMAN, Bryan, A.; KHATUYA, Haripada; JOSHI, Pramod, Virupax; KRENITSKY, Paul, John; MELILLO, Vito; PIERRE, Fabrice, Jean Denis; TERMIN, Andreas, P.; UY, Johnny; ZHOU, Jinglan; ABELA, Alexander, Russell; BUSCH, Brett, Bradley; PARASELLI, Prasuna; SIESEL, David, Andrew; (329 pag.)WO2018/64632; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 58584-86-4, Adding some certain compound to certain chemical reactions, such as: 58584-86-4, name is Ethyl 2,6-dichloronicotinate,molecular formula is C8H7Cl2NO2, 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 58584-86-4.

Substitution of NaOEt (5.8 g, 1.5 eq) with ethyl 2,6-dichloronicotinate (12.5 g, 56.8 mmol) in CH2Cl2 was performed (Reference: US2005/0288299A1) by slow addition of the base solid to the bis-chloro ester solution at 0 C. and stirred for 3 h with the cooling, then overnight from 0 C. to r.t. More CH2Cl2 and water were added, separated, dried and evaporated giving a liquid (11.62 g) that crystallized slowly overnight. The solid was recrystallized from dry-ice-cooling pentane affording the desired ethyl 6-chloro-2-ethoxynicotinate as white crystals (9.45 g, 41.15 mmol, yield 72.4%). (0725) M.p. 33-35 C. 1H NMR (300 MHz, DMSO-d6): delta 8.13 (d, J=8.1 Hz, 1H), 8.16 (d, J=8.1 Hz, 1H), 4.34 (q, J=7.2 Hz, 2H), 4.24 (q, J=7.2 Hz, 2H), 1.31 (t, J=7.2 Hz, 3H) and 1.27 (t, J=7.2 Hz, 3H) ppm.

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. 58584-86-4, Ethyl 2,6-dichloronicotinate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; ANACOR PHARMACEUTICALS, INC.; AKAMA, Tsutomu; US2015/291629; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, molecular weight is 220.05, as common compound, the synthetic route is as follows.Formula: C8H7Cl2NO2

3-[(2,2-Difluoro-1-methyl-cyclopropyl)methoxy]-1H-pyrazole (490 mg, 2.604 mmol) was dissolved in DMF (5 mL). Ethyl 2,6-dichloropyridine-3-carboxylate (approximately 573.0 mg, 2.604 mmol) was added followed by 1,4-diazabicyclo[2.2.2]octane(approximately 58.42 mg, 0.5208 mmol) and finely ground potassium carbonate (approximately 539.8 mg, 3.906 mmol). The reaction mixture was allowed to stir overnight at room temperature. The reaction mixture was diluted with water (50 mL) and extracted with EtOAc (2× 50 mL). The combined organic layers were then washed with brine (1× 75 mL), dried over sodium sulfate, filtered, and concentrated under reduced pressure. The crude product was isolated by silica gel column chromatography eluting with a 0-20% EtOAc/hexane gradient on a 40 gram silica gel column. Ethyl 2- chloro-6-[3-[(2,2-difluoro-1-methyl-cyclopropyl)methoxy]pyrazol-1-yl]pyridine-3- carboxylate (797 mg, 82%) was obtained as a white solid.1H NMR (400 MHz, DMSO- d6) delta 8.46 (dd, J = 2.8, 0.9 Hz, 1H), 8.41 (dd, J = 8.4, 0.9 Hz, 1H), 7.75 (dd, J = 8.5, 0.9 Hz, 1H), 6.27 (dd, J = 2.9, 0.9 Hz, 1H), 4.44 – 4.37 (m, 1H), 4.37 – 4.31 (m, 2H), 4.17 (d, J = 10.8 Hz, 1H), 1.67 (q, J = 8.9 Hz, 1H), 1.42 (q, J = 8.4 Hz, 1H), 1.38 – 1.30 (m, 6H). ESI-MS m/z calc.371.08484, found 372.0 (M+1)+; Retention time: 2.09 minutes.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,58584-86-4, Ethyl 2,6-dichloronicotinate, and friends who are interested can also refer to it.

Reference:
Patent; VERTEX PHARMACEUTICALS INCORPORATED; ABELA, Alexander, Russell; ALCACIO, Timothy; ANDERSON, Corey; ANGELL, Paul, Timothy; BAEK, Minson; CLEMENS, Jeremy, J.; CLEVELAND, Thomas; FERRIS, Lori, Ann; GROOTENHUIS, Peter Diederik, Jan; GROSS, Raymond, Stanley; GULEVICH, Anton; HADIDA RUAH, Sara, Sabina; HSIA, Clara, Kuang-Ju; HUGHES, Robert, M.; JOSHI, Pramod, Virupax; KANG, Ping; KESHAVARZ-SHOKRI, Ali; KHATUYA, Haripada; KRENITSKY, Paul, John; MCCARTNEY, Jason; MILLER, Mark, Thomas; PARASELLI, Prasuna; PIERRE, Fabrice Jean, Denis; SHI, Yi; SHRESTHA, Muna; SIESEL, David, Andrew; STAVROPOULOS, Kathy; TERMIN, Andreas, P.; UY, Johnny; VAN GOOR, Fredrick, F.; YOUNG, Tomothy, John; ZHOU, Jinglan; (398 pag.)WO2018/107100; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, molecular weight is 220.05, as common compound, the synthetic route is as follows.Recommanded Product: 58584-86-4

(a) Ethyl6-{4-[(benzylsulfonyl)carbamoyl]piperidin-1-yl}-2-chloronicotinate A micro wave vial was charged with DIPEA (2.73 g, 21.1 mmol), ethyl2,6-dichloronicotinate (Example 43(a)) (1.547 g, 7.03 mmol), N-(benzylsulfonyl)piperidine-4-carboxamide (Example 6(d)) (2.28 g, 8.08 mmol) and DMF and the mixture was heated to 120 C. for 10 minutes followed by 150 C. for 10 minutes using microwave single node heating. Ratio of the two possible regioisomers was ca. 1:1 together with some bis-addition adduct. The crude product was purified by first using HPLC (Kromasil C8, 10 mum, using a gradient of MeCN with an acidic second eluent (H2O/MeCN/AcOH, 95/5/0.1)) followed by flash chromatography using a stepwise gradient of heptane/EtOAc 1/1 then heptane/EtOAc 1/1+0.15% FA and finally heptane/EtOAc 1/2+0.15% FA. (Rf product (heptane/EtOAc 1/2+0.15% FA)=0.47) to give ethyl6-{4-[(benzylsulfonyl)carbamoyl]piperidin-1-yl}-2-chloronicotinate. Yield: 610 mg (19%).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,58584-86-4, Ethyl 2,6-dichloronicotinate, and friends who are interested can also refer to it.

Reference:
Patent; AstraZeneca AB; US2008/171732; (2008); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

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. 58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, The 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. SDS of cas: 58584-86-4

Production Example 7 1.00 g of ethyl 2,6-dichloronicotinate was dissolved in 10 mL of methylene chloride, and 1.05 g of sodium methoxide (28 wt% of methanol solution) was added thereto at room temperature. After stirring at room temperature for 2 days, the reaction mixture was concentrated, and the residue was purified by silica gel column chromatography (hexane-ethyl acetate) to obtain 511 mg of methyl 6-chloro-2-methoxynicotinate as a white solid.

With the rapid development of chemical substances, we look forward to future research findings about 58584-86-4.

Reference:
Patent; Astellas Pharma Inc.; EP2085383; (2009); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 58584-86-4, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 58584-86-4, name is Ethyl 2,6-dichloronicotinate. This compound has unique chemical properties. The synthetic route is as follows.

Example 174-[5-[4-(2-aminoethyl)-piperidine-1-carbonyl]-6-(4-trifluoromethoxy-phenoxy)-pyridine-2-yloxy]benzamidinea) 2-Chloro-6-(4-cyano phenoxy)nicotinic Acid Ethyl Ester96.7 mg (0.7 mmol) of potassium carbonate was added to a stirred solution of 2,6-dichloro nicotinic acid ethyl ester 0.15 g (0.7 mmol) in 10 ml of N,N-dimethyl-formamide (DMF) cooled to 5 C. This was followed by dropwise addition (over a period of 10 min) of 4-cyano phenol 80 mg (0.68 mmol) dissolved in 2 ml of DMF. The reaction mixture was allowed to stir at RT for 2 h, concentrated under reduced pressure and the residue was dissolved in 100 ml of ethylacetate. The organic layer was washed with water and dried over anhydrous sodium sulphate and concentrated under reduced pressure. The crude product was purified by column chromatography using hexane:ethylacetate (8:2) as eluants to afford 0.13 g of the required product. 1H NMR (DMSO-d6): delta 1.3 (3H, t), 4.3 (2H, q), 7.26 (1H, s), 7.38 (1H, s), 7.48 (2H, d), 7.96 (2H, d).

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 58584-86-4, Ethyl 2,6-dichloronicotinate.

Reference:
Patent; Goswami, Rajeev; Vuppala, Anil Kumar; Veludandi, Ramesh; Sistla, Ramesh; Ghadiyaram, Chakshusmathi; Ramachandra, Muralidhara; US2012/136002; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.58584-86-4, name is Ethyl 2,6-dichloronicotinate, molecular formula is C8H7Cl2NO2, molecular weight is 220.05, as common compound, the synthetic route is as follows.Application In Synthesis of Ethyl 2,6-dichloronicotinate

Step 2: ethyl 6-chloiO-2-ethoxynicotinate; To a solution of ethyl 2,6-dichloronicotinate (5.0 g, 22.72 mmol) in dichloromethane (25 ml_) at 00C was added sodium ethoxide (2.12 g, 29.5 mmol) slowly. The reaction was stirred at 00C for 3 h and then warmed to ambient temperature over 16 h. The reaction was diluted with dichloromethane (20 ml_) and water (20 ml_) and the layers were separated. The aqueous layer was extracted an additional time with dichloromethane (20 ml_). The organic layers were combined, washed with brine (20 ml_), dried over magnesium sulfate, filtered, and concentrated to give the title compound (4.38 g, 84%) as a light yellow solid. 1 H NMR (400 MHz, DMSO-Cf6) delta ppm 1.22 – 1.40 (m, 6 H) 4.27 (q, J=7.03 Hz, 2 H) 4.37 (q, J=7.03 Hz, 2 H) 7.18 (d, J=8.00 Hz, 1 H) 8.15 (d, J=8.00 Hz, 1 H).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,58584-86-4, Ethyl 2,6-dichloronicotinate, and friends who are interested can also refer to it.

Reference:
Patent; PFIZER INC.; ARHANCET, Graciela Barbieri; CASIMIRO-GARCIA, Agustin; CHEN, Xiangyang; HEPWORTH, David; MEYERS, Marvin Jay; PIOTROWSKI, David Walter; RAHEJA, Raj Kumar; WO2010/116282; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem