Category: 1604-14-4

Reference of 1604-14-4, 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. 1604-14-4, name is 2,6-Dichloro-isonicotinic acid ethyl ester, 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.

Step A: 2,6-Dichloro-isonicotinic acid ethyl ester (45 mmol), Cs2CO3 (1.1 eq.) and Phenol (1 eq.) is dissolved in DMF (100 ml). The reaction suspension is heated to 150 0C for 10 minutes in the microwave. After filtration, the solvent is removed in vacuo. 2-Chloro-6-phenoxy-isonicotinic acid ethyl ester is obtained after column chromatography (Heptan / ethyl acetate) as a colorless oil in a yield of 57 %. HPLC (Method A): 3.59 min, LCMS (Method A): 2.81 min, 287.2 m/z (MH+).

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 1604-14-4, 2,6-Dichloro-isonicotinic acid ethyl ester.

Reference:
Patent; MERCK PATENT GmbH; WO2009/106209; (2009); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 1604-14-4, 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. 1604-14-4, name is 2,6-Dichloro-isonicotinic acid ethyl ester, 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.

EXAMPLE 7E (2,6-dichloropyridin-4-yl)methanol To a solution of EXAMPLE 7D (3.1 g, 14.2 mmol) in ethanol (100 mL) at 0C was added sodium triacetoxyborohydride (2.7 g, 71.1 mmol) in portions and the mixture was heated at 80C for 3 hours. The mixture was concentrated and the residue was diluted with water (20 mL). I N Hydrochloric acid was added to quench excess sodiumtriacetoxyborohydride and then the mixture was neutralized with saturated aqueous sodium carbonate. The mixture was extracted with dichloromethane (3 x 20 mL) and the combined organic phase was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated. The residue was recrystallized from methanol to give the title compound. MS: 178 (M + H+).

According to the analysis of related databases, 1604-14-4, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ABBOTT LABORATORIES; ABBOTT LABORATORIES TRADING (SHANGHAI) COMPANY, LTD.; VASUDEVAN, Anil; PENNING, Thomas Dale; CHEN, Huanming; LIANG, Bo; WANG, Shaohui; ZHAO, Zhongqiang; CHAI, Dikun; YANG, Leifu; GAO, Yingxiang; WO2012/97682; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

1604-14-4, 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. 1604-14-4, name is 2,6-Dichloro-isonicotinic acid ethyl ester. A new synthetic method of this compound is introduced below.

A solution of phenylboronic acid (915 mg, 7.50 mmol) in methanol (15 mL) was added to a stirred solution of ethyl-2,6- dichloro-isonicotinate (750 mg, 3.41 mmol) and tetrakis- (TRIPHENYLPHOSPHINE)-PALLADIUM (0) (197 mg, 5 mol%) in toluene (60 mL). 2N sodium carbonate (3.41 mL, 6.82 mmol) was added and the reaction was heated to 90C (oil bath temp. ) for 2-3 hrs until complete (TLC control). The reaction mixture was cooled to room temperature and partitioned between water and diethyl ether. The phases were separated, the aqueous phase being further extracted with diethyl ether (3 x 30 mL). The combined extract was washed with water and brine. The ethereal solution was dried over anhydrous MGS04, filtered and concentrated in vacuo to yield the title compound as a white solid (941 mg, 91 %) ; Rf: 0.5 (30% ethyl acetate in heptane); 1H NMR (CDC13, 300 MHz) 6 8.18 (2H, s, ArH), 8.12 (4H, m, ArH), 7.42 (6H, m, ArH), 4.38 (2H, q, J = 7 Hz, CH20), 1.39 (2H, t, J = 7HZ, CH3).

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. 1604-14-4, 2,6-Dichloro-isonicotinic acid ethyl ester, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; THE INSTITUTE OF PHARMACEUTICAL DISCOVERY, LLC; WO2004/99192; (2004); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

1604-14-4, 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. 1604-14-4, name is 2,6-Dichloro-isonicotinic acid ethyl ester, 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.

A solution of phenylboronic acid (915 mg, 7.50 mmol) in methanol (15 mL) was added to a stirred solution of ethyl-2,6-dichloro-isonicotinate (750 mg, 3.41 mmol) and tetrakis-(triphenylphosphine)-palladium(0) (197 mg, 5 mol %) in toluene (60 mL). 2N sodium carbonate (3.41 mL, 6.82 mmol) was added and the reaction was heated to 90 C. (oil bath temp.) for 2-3 hrs until complete (TLC control). The reaction mixture was cooled to room temperature and partitioned between water and diethyl ether. The phases were separated, the aqueous phase being further extracted with diethyl ether (3¡Á30 mL). The combined extract was washed with water and brine. The ethereal solution was dried over anhydrous MgSO4, filtered and concentrated in vacuo to yield the title compound as a white solid (941 mg, 91%); Rf: 0.5 (30% ethyl acetate in heptane); 1H NMR (CDCl3, 300 MHz) delta 8.18 (2H, s, ArH), 8.12 (4H, m, ArH), 7.42 (6H, m, ArH), 4.38 (2H, q, J=7 Hz, CH2O), 1.39 (2H, t, J=7 Hz, CH3).

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. 1604-14-4, 2,6-Dichloro-isonicotinic acid ethyl ester, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; The Institutes for Pharmaceutical Discovery, LLC; US2006/122222; (2006); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem