Reference of 83732-68-7, 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. 83732-68-7, name is 2,3-Dichloro-6-methoxypyridine, molecular formula is C6H5Cl2NO, 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 RBF was charged with 2,3-dichloro-6-methoxypyridine (4.84 g, 27.2 mmol, Accel Pharmtech), DCM (40.0 ml), AcOH (40.0 ml), and sulfuric acid (0.797 ml, 14.95 mmol) to give a clear solution. N-iodosuccinimide (6.12 g, 27.2 mmol) was added in one portion to give a maroon-colored solution. The reaction was stirred for three hours at RT. The mixture was diluted with ethyl acetate, washed with water, washed with 10% aq. sodium thiosulfate, washed with brine, dried over sodium sulfate, filtered, and concentrated. The residue was purified by chromatography on silica gel (80-g Redi-Sep Gold column, 0-15% Et20/Heptane) to afford 2,3-dichloro-5-iodo-6-methoxypyridine (6.29 g, 20.70 mmol, 76% yield) as a white solid. m/z (ESI) 304.0 (M+H)+.
According to the analysis of related databases, 83732-68-7, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Amgen Inc.; Weiss, Matthew; Boezio, Alessandro; Boezio, Christiane; Butler, John R.; Chu-Moyer, Margaret Yuhua; Dimauro, Erin F.; Dineen, Thomas; Graceffa, Russell; Guzman-Perez, Angel; Huang, Hongbing; Kreiman, Charles; La, Daniel; Marx, Isaac E.; Milgrim, Benjamin Charles; Nguyen, Hanh Nho; Peterson, Emily; Romero, Karina; Sparling, Brian; US9212182; (2015); B2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem