反应详情

To a solution of sodium ethanolate [prepared from 1.35 g Na in ethanol (30 ml)] were added diethyl malonate (9.2 ml) and then dropwise 3-methyl-4-nitrobenzyl bromide (13.4 g). The mixture was stirred 30 minutes at room temperature, then 30 minutes under reflux and then concentrated. The residue is treated with water and hexane, the precipitate filtered and the filtrate extracted with diethyl ether. The organic extract was dried on sodium sulfate and concentrate to give the title compound as an oil (4 g).

1. temperature30 minutes under reflux
2. concentrationconcentrated
3. additionThe residue is treated with water and hexane
4. filtrationthe precipitate filtered
5. extractionthe filtrate extracted with diethyl ether
6. extractionThe organic extract
7. customwas dried on sodium sulfate
8. concentrationconcentrate