反应详情

To a suspension of lithium aluminum hydride (2.38 g) in ethyl ether (160 ml) was added a solution of methyl (E,E)-4-ethyl-2,4-heptadienoate (13.2 g) in ethyl ether (100 ml) while keeping the temperature below 30° C. When addition was completed, the mixture was allowed to stir at room temperature for one hour. To this resultant mixture at 10° C. were added dropwise ethyl acetate (50 ml) and a saturated aqueous solution of potassium sodium tartrate (50 ml). The separated organic layer was washed with brine, dried over anhydrous magnesium sulfate, and evaporated to give (E,E)-4-ethyl-2,4-heptadien-1-ol (10.1 g) as an oil. This oil was used in the next reaction without further purification.

1. customthe temperature below 30° C
2. additionWhen addition
3. washThe separated organic layer was washed with brine
4. dry with materialdried over anhydrous magnesium sulfate
5. customevaporated