With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.34784-04-8,5-Bromoisoquinoline,as a common compound, the synthetic route is as follows.
Synthesis of 5-bromo-8-nitroisoquinoline Into a 500 mL 3-necked round-bottom flask was placed a solution of 5-bromoisoquinoline (22.24 g, 106.87 mmol) in H2SO4 (120 mL). This was followed by the addition of a solution of KNO3 (15.1 g, 149.36 mmol) in H2SO4 (100 mL), which was added dropwise with stirring, while cooling to a temperature of 20 C. over a time period of 1 hour. The resulting solution was allowed to react, with stirring, for 1 hour while the temperature was maintained at room temperature. The reaction progress was monitored by TLC (ethyl acetate/petroleum ether=1:5). The reaction mixture was then quenched by the adding 600 mL of H2O/ice. Adjustment of the pH to 8-10 was accomplished by the addition of NH3. H2O (30%). A filtration was performed. The filter cake was washed 2 times with 500 mL of H2O. The solid was dried in an oven under reduced pressure. This resulted in 25.59 g (90%) of 5-bromo-8-nitroisoquinoline as a yellow solid., 34784-04-8
The synthetic route of 34784-04-8 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; MEMORY PHARMACEUTICALS CORPORATION; US2008/200471; (2008); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem