Phenylmagnesium chloride is widely used as a Grignard reagent in organic synthesis. It is particularly valuable for forming carbon-carbon bonds, making it essential in the production of complex organic molecules. One of its primary applications is in the synthesis of alcohols through the reaction with carbonyl compounds such as aldehydes and ketones. It is also employed in the preparation of pharmaceuticals, agrochemicals, and fine chemicals, where it serves as a key intermediate. Additionally, it is used in the synthesis of biphenyl compounds and other aromatic derivatives. Its reactivity with various electrophiles makes it a versatile tool in constructing diverse organic structures.