反应详情

Potassium carbonate anhydrous (0.207 g, 1.5 mmole) and benzyl bromide (0.205 g, 1.2 mmole) were added to a solution of the 11-oxo-10,11 dihydrodibenzo[b,f][1,4]oxazepine-8-carbaldehyde (0.240 g, 1 mmole) in acetonitrile under N2 at room temperature. The reaction mixture then was refluxed for 4 hours, and cooled to room temperature. Diluted the reaction mixture with ethyl acetate and filtered through a magnesol pad and concentrated. Purified with silica gel column and 50% ethyl acetate in hexane. Obtained the desired compound (light yellow oil) in 63% yield.

1. temperatureThe reaction mixture then was refluxed for 4 hours
2. filtrationfiltered through a magnesol pad
3. concentrationconcentrated
4. customPurified with silica gel column and 50% ethyl acetate in hexane