反应详情

A mixture of 4-(2-nitro-4-trifluoromethylphenoxy)phenol (9.36 mm), ethyl 4-bromo-3-methoxy-2-pentenoate (12 mm.) and K2CO3 (14 mm.) in acetone (20 ml.) is refluxed for 24 hours. After filtration, the filtrate is concentrated and the oily residue chromatographed on silica gel to yield ethyl 4-[4-(2-nitro-4-fluoromethylphenoxy)phenoxy]-3-methoxy-2-pentenoate.

1. temperatureis refluxed for 24 hours
2. filtrationAfter filtration
3. concentrationthe filtrate is concentrated
4. customthe oily residue chromatographed on silica gel