反应详情

温度

10 °C

Fifty milliliters of a saturated magnesium sulfate aqueous solution were cooled to 10° C., and 10.23 g of sodium cyanide was gradually added not to proceed over 10° C. After stirring at 10° C. for 45 minutes, a solution of 7.61 g of 1,2-epoxy-3,4-(dimethylmethylenedioxy)-5-hexene in 30 ml of methanol was gradually added to the above mixture not to proceed over 10° C. After stirring at room temperature for 2 hours, the reaction mixture was extracted with ethyl acetate. The extract was washed with a sodium chloride aqueous solution, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography to afford 2.11 g of 4,5-(dimethylmethylenedioxy)-3-hydroxy-6-heptenenitrile having the following properties.

1. customto proceed over 10° C
2. customto proceed over 10° C
3. stirringAfter stirring at room temperature for 2 hours
4. extractionthe reaction mixture was extracted with ethyl acetate
5. washThe extract was washed with a sodium chloride aqueous solution
6. dry with materialdried over anhydrous magnesium sulfate
7. concentrationconcentrated under reduced pressure
8. customThe obtained residue was purified by silica gel column chromatography