反应详情

温度

110 °C

Sodium methoxide (2.9 g, 54 mmol) was added to a solution of 4-((2,4-dichloro-6-iodoquinolin-3-yl)methyl)-N,N-dimethylaniline (3.5 g, 7.7 mmol, Intermediate 24: step b) in toluene (38 mL) with stirring. The mixture was heated to 110° C. After 3 hours, additional sodium methoxide (2 g, 37.2 mmol) was added. After 18 hours, the flask was allowed to cool to 50° C. The warm mixture was filtered through Celite®, rinsing with tetrahydrofuran. Silica gel (5 g) was added to the filtrate and the solvent was removed by rotary evaporation to afford a free-flowing powder. The powder was loaded onto a column of silica gel for purification. Elution with dichloromethane initially, grading to 1% methanol-dichloromethane provided the title compound as a solid.

1. waitAfter 18 hours
2. temperatureto cool to 50° C
3. filtrationThe warm mixture was filtered through Celite®
4. washrinsing with tetrahydrofuran
5. additionSilica gel (5 g) was added to the filtrate
6. customthe solvent was removed by rotary evaporation
7. customto afford a free-flowing powder
8. customThe powder was loaded onto a column of silica gel for purification
9. washElution with dichloromethane initially