ethyl 5-(4-bromo-2-methylphenyl)-5-oxovalerate

ethyl 5-(2,3-dichlorophenyl)-5-oxovalerate

ethyl 4-(2,4-dichlorophenyl)-4-oxobutyrate

ethyl 6-(4-ethylphenyl)-6-oxohexanoate

Ethyl 8-(4-isopropylphenyl)-8-oxooctanoate

ethyl 5-(4-isopropylphenyl)-5-oxovalerate

ethyl 5-oxo-5-(4-n-pentylphenyl)valerate

ethyl 5-(4-ethoxyphenyl)-5-oxovalerate

ethyl 8-(4-ethoxyphenyl)-8-oxooctanoate

Ethyl 6-oxo-6-(4-n-propoxyphenyl)hexanoate

ethyl 6-(4-hexyloxyphenyl)-6-oxohexanoate