反应详情

9-amino-3,4-dihydroacridin-1(2H)-one (7.63 g) was suspended in 75 ml of dimethylsufoxide and 5 g of pulverized 85% potassium hydroxide was added. After 45 minutes a homogeneous solution was obtained to which was added 7.0 g of 2-methylbenzyl bromide. The reaction mixture was stirred for 30 minutes and then additional 2.0 g of the benzyl bromide was added. After 60 more minutes 300 ml of water and 30 ml of ether were added to the reaction. The precipitated product was filtered off and washed with additional ether, then flushed over a short magnesium silicate column with ethyl acetate. After evaporating the solvent, the product was again washed with cold ether to give 7.21 g of product.

1. additionwas added
2. customAfter 45 minutes a homogeneous solution was obtained to which
3. filtrationThe precipitated product was filtered off
4. washwashed with additional ether
5. customflushed over a short magnesium silicate column with ethyl acetate
6. customAfter evaporating the solvent
7. washthe product was again washed with cold ether