Electric Literature of 98027-84-0, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 98027-84-0 as follows.
Example A: Synthesis of 5-[3-(2,6-dichloropyridin-4-ylll-3-(trifluoromethyl)-3,4-dihvdro-2H- pyrrol-5-vn-2-(1H-1,2,4-triazoI-1-vnbenzonitrile (No. 1-1)Step 1. Synthesis of ,,6-dichloro-4-(3.3.3-trifluoroprop-1-en-2-yl)pyridine.2,6-dichloro-4-iodopyridine (0.87 g), (3,3,3-trifluoroprop-1-en-2-yl)boronic acid (purity: 65%, 0.75 g) and potassium carbonate (0.96 g) were dissolved in the mixed solvent of THF and water, which was then degassed three times. To the solution was added dichlorobis(triphenylphosphine) palladium (II) (0.04 g), and the mixture was heated to reflux for 3 hours under argon atmosphere. The mixture was cooled to room temperature and then poured into water, which was then extracted twice with hexane. The organic layer was combined, which was then washed with water and dried over anhydrous magnesium sulfate. After the drying agent was filtered off, the solvent was distilled away under reduced pressure, and the residue was then purified by silica gel chromatography to obtain 2,6-dichloro-4-(3,3,3-trifluoroprop-1-en-2-yl)pyridine (0.70 g) at a yield of 82%.1H-NMR(CDC13)delta: 6.03 (1H, s), 6.21 (1H, s), 7.34 (2H, s)
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,98027-84-0, its application will become more common.
Reference:
Patent; BAYER CROPSCIENCE AG; MURATA, Tetsuya; YONETA, Yasushi; KISHIKAWA, Hidetoshi; MIHARA, Jun; YAMAZAKI, Daiei; HATAZAWA, Mamoru; SASAKI, Norio; DOMON, Kei; SHIMOJO, Eiichi; ICHIHARA, Teruyuki; SHIBUYA, Katsuhiko; ATAKA, Masashi; GOeRGENS, Ulrich; WO2010/133336; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem