A simple and efficient one-pot procedure has been developed for the synthesis of ω-bromoesters from aromatic aldehydes and diols in the presence of phenyltrimethylammonium tribromide (PTAB) and (Diacetoxyiodo)benzene (DIB) in which aldehyde reacts first with diol and the product, cyclic acetal, reacts with acetyl bromide to give the final product, ω-bromoesters.