(2-oxocyclohexyl) 4-methylbenzenesulfonate

2,4-dioxopentan-3-yl 4-methylbenzenesulfonate

4,4-二苯基丁-3-烯-2-酮

[2-(2,5-dichlorophenyl)-2-oxoethyl] 4-methylbenzenesulfonate

(1-oxo-1-phenylpropan-2-yl) 4-methylbenzenesulfonate