Identify the major product formed in the following reaction sequence:

Step-by-step solution

The given reaction sequence involves three main steps: The starting material, 2-(3-bromophenyl)-1,3-dioxolane, reacts with magnesium (Mg) in the presence of ether. This forms a Grignard reagent at the position of the bromine atom, yielding 3-(1,3-dioxolan-2-yl)phenylmagnesium bromide. The acetal group is stable under these basic conditions and protects the aldehyde functionality. Ethanol (EtOH) is added to the reaction mixture. Grignard reagents are strong bases and react readily with compounds containing acidic pr