反应详情

温度

0 °C

Nine milliliters of diisopropylethylamine were added to 2.11 g of 4,5-(dimethylmethylenedioxy)-3-hydroxy-6-heptenenitrile, and 2 ml of methoxymethyl chloride was then added to the mixture gradually at 0° C. After stir-ring at 0° C. for 16 hours, the reaction mixture was diluted with 300 ml of diethyl ether, and washed with 1N hydrochloric acid, a saturated sodium hydrogen carbonate aqueous solution and a sodium chloride aqueous solution in sequence. The organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was filtered by a silica gel column to afford 2.28 g of 4,5-(dimethylmethylenedioxy)-3-methoxymethoxy-6-heptenenitrile having the following properties (yield 88 %).

1. additionwas then added to the mixture gradually at 0° C
2. washwashed with 1N hydrochloric acid
3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure
5. filtrationThe obtained residue was filtered by a silica gel column