反应详情

1.2 g (4.8 mmol) of methyl 4-(2-dimethylaminovinyl)-3-nitrobenzoate were dissolved in 120 mL of tetrahydrofuran/water (1:1) and after the addition of 3.0 g (14.3 mmol) of sodium metaperiodate the mixture was stirred for 20 hours at ambient temperature. The suspension was then diluted with water and methylene chloride and extracted with methylene chloride. The combined organic extracts were washed with sodium hydrogen carbonate solution, dried, and evaporated down. The residue was chromatographed on silica gel and eluted with ethyl acetate/cyclohexane (1:3). Yield: 0.6 g (63% of theory); Rf value: 0.63 (silica gel, ethyl acetate/cyclohexane=1:1).

1. extractionextracted with methylene chloride
2. washThe combined organic extracts were washed with sodium hydrogen carbonate solution
3. customdried
4. customevaporated down
5. customThe residue was chromatographed on silica gel
6. washeluted with ethyl acetate/cyclohexane (1:3)