反应详情

温度

-78 °C

To a -78° C. solution of diphenylsulfonium ethylide (1.0 mole) in tetrahydrofuran (one liter) is slowly added 3,5-dimethoxybenzaldehyde (1.0 mole). The reaction mixture is stirred at -78° C. for 3 hours and then allowed to warm to room temperature. It is then added to ether-water and the ether phase separated. The ether phase is washed with water, dried (MgSO4) and evaporated. Fractional distillation of the residue gives the title product.

1. customTo a -78° C.
2. temperatureto warm to room temperature
3. customthe ether phase separated
4. washThe ether phase is washed with water
5. dry with materialdried (MgSO4)
6. customevaporated
7. distillationFractional distillation of the residue