2',4'-dibenzoyloxy-2-bromoacetophenone

7-acetoxy-3-acetyl-2-methyl-chromen-4-one

(2-(2,4-bis(benzoyloxy)phenyl)-2-oxoethyl)triphenylphosphonium bromide

1-(2,4-dihydroxyphenyl)-2-(triphenylphosphoranylidene)ethanone

乙酰氯