反应详情

2,3-Dichloro-5,6-dicyanobenzoquinone (1.362 g, 6.0 mmols) was added to a solution of dimethyl 1,4-dipropyl-5,6,7,8-tetrahydronaphthalene-2,3-dicarboxylate (0.665 g, 2.0 mmols) in benzene (20 ml). The mixture was then refluxed for 24 hours. After filtration, the solvent in the mixture was removed in vacuum. Column chromatography was performed using silica gel as the packing material to give the title compound (0.464 g ) as colorless crystals. The GC yield was 87% and the isolation yield was 71%.

1. temperatureThe mixture was then refluxed for 24 hours
2. filtrationAfter filtration
3. customthe solvent in the mixture was removed in vacuum