Adding a certain compound to certain chemical reactions, such as: 184416-84-0, 2,3-Dichloroisonicotinic acid, 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, Recommanded Product: 184416-84-0, blongs to pyridine-derivatives compound. Recommanded Product: 184416-84-0
2,3-Dichloro-isonicotinic acid methyl ester[00197] To a suspension of 2,3-dichloro-isonicotinic acid (7.7 g, 40 mmol) in dichloromethane (45 mL) were added DMF (0.1 mL) and oxalyl chloride (17.5 mL, 200 mmol). The reaction mixture was stirred at room temperature for 18 hours and then concentrated under reduced pressure. The resultant residue was azeotroped with toluene, then cooled to 00C and dissolved in methanol (135 mL). The mixture was allowed to warm to room temperature and then concentrated under reduced pressure to give a residue. The residue was dissolved in ethyl acetate and the resulting solution was washed with a saturated solution of sodium hydrogen carbonate, water and brine, dried (Na2SO4), filtered and concentrated to give the title compound as a colourless oil that crystallised on standing (7.9 g, 96%). 1H NMR (CDCl3, 400MHz) 8.38 (d, J = 5.0 Hz, IH), 7.52 (d, J = 5.0 Hz, IH), 3.99 (s, 3H).
At the same time, in my other blogs, there are other synthetic methods of this type of compound,184416-84-0, 2,3-Dichloroisonicotinic acid, and friends who are interested can also refer to it.
Reference:
Patent; GENENTECH, INC.; WO2009/85980; (2009); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem