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. 52605-98-8, name is 5-Bromo-2,3-dimethoxypyridine. A new synthetic method of this compound is introduced below., HPLC of Formula: C7H8BrNO2
Step 2. N-(6-(5,6-dimethoxypyridin-3-yl)imidazo[1,2-b]pyridazin-2-yl)acetamide Following the procedure described for N-(6-(6-chloro-5-(methylsulfonamido)pyridin-3-yl)imidazo[1,2-b]pyridazin-2-yl)acetamide (Example 19), N-(6-chloroimidazo[1,2-b]pyridazin-2-yl)acetamide (0.132 g, 0.627 mmol) was reacted with bis(pinacolato)diboron (0.207 g, 0.815 mmol), DMSO (6.00 mL, 84.5 mmol) and potassium acetate (0.246 g, 2.51 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.050 g, 0.062 mmol, Strem Chemical, Inc., Newburyport, Mass.) for 6 h.
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Reference:
Patent; Booker, Shon; Kim, Tae-Seong; Liao, Hongyu; Liu, Longbin; Norman, Mark H.; Peterson, Emily Anne; Stec, Markian; Tamayo, Nuria A.; US2009/163489; (2009); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem