反应详情

A stirred mixture of 17.2 g (0.033 mole) of 8-amino-5-dimethylamino-6-methoxyquinoline and 9.8 g (0.033 mole) of 4-bromo-1-phthalimidopentane was maintained at 145° while 5 ml of triethylamine was added dropwise. Addition of 9.8 g of 4-bromo-1-phthalimidopentane and 5 ml of triethylamine was repeated three more times, at the same temperature (145°) at 2 hr intervals. The mixture was allowed to cool, diluted with acetone and filtered. The filtrate was concentrated to a brown oil which was diluted with ether, washed with 30% KOH and extracted with chloroform. The extract was passed through a silica column and the eluate was concentrated, dissolved in ether, treated with Darco and slowly evaporated to give yellow crystals which, after washing with petroleum ether (bp 20°-40°) weighed 9.5 g and melted at 103°-105°.

1. additionwas added dropwise
2. temperatureto cool
3. filtrationfiltered
4. concentrationThe filtrate was concentrated to a brown oil which
5. additionwas diluted with ether
6. washwashed with 30% KOH
7. extractionextracted with chloroform
8. concentrationthe eluate was concentrated
9. dissolutiondissolved in ether
10. additiontreated with Darco
11. customslowly evaporated
12. customto give yellow crystals which
13. washafter washing with petroleum ether (bp 20°-40°)