反应详情

p-Hydroxybenzaldehyde (24.9 g; 203.8 mmole) was dissolved in dichloromethane (dry). ADDP (47.2 g; 187 mmole) was added followed by addition of triphenylphosphine (49 g; 187 mmole). The reaction mixture was stirred at room temperature for 45 minutes and then p-cyanophenethyl alcohol (25 g; 110 mmole) dissolved in a small amount of dichloromethane (dry) was added in portions during one hour. The reaction mixture was stirred at room temperature over night, filtered and evaporated. Chromatography of the residue on silica gel using ethyl acetate:heptane as eluant gave 9.7 g (22.7% yield) of 4-[2-(4-formylphenoxy)ethyl]benzonitrile.

1. additionwas added in portions during one hour
2. stirringThe reaction mixture was stirred at room temperature over night
3. filtrationfiltered
4. customevaporated