Used as an alkylating agent in organic synthesis, particularly in the preparation of functionalized polymers and specialty chemicals. Its reactivity allows for the introduction of pivaloyloxy groups while the iodide serves as a good leaving group for nucleophilic substitution reactions. Commonly employed in the development of pharmaceutical intermediates and in modifying polymer chains to introduce specific branching or end-group functionality. Also utilized in the synthesis of protected alcohol derivatives where controlled deprotection and further chain elongation are required.