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. 4214-74-8, name is 3,5-Dichloropyridin-2-amine. A new synthetic method of this compound is introduced below., name: 3,5-Dichloropyridin-2-amine
Example 605-Cyano-furan-2-carboxylic acid[4-methyl-5′-(4-methyl-piperazin-l-yl)-3,4,5,6- tetrahydro-2H-[l,3′]hipyridinyl-2 ‘-yl]-amide a) 3,5-dicholoro-2-nitro pyridine; 2-Amino-3,5-dichloropyridine (193 mg, 1.00 mmol) was dissolved in cone H2SO4 (5 mL) and K2S2O8 (1.3 g, 5.0 mmol) was added portionwise. The resulting mixture was stirred at RT overnight and poured onto crushed ice and neutralized with’satd aq NaHCO3. EPO
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Reference:
Patent; JANSSEN PHARMACEUTICA, N.V.; WO2006/47504; (2006); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem