Rearrangement reactions are a type of chemical reaction where the structure of a molecule is reorganized to form a different isomer. This process often involves the breaking and forming of bonds, leading to a new arrangement of atoms within the same molecular formula. Common examples include the Wurtz reaction and Beckmann rearrangement. These reactions can occur in various organic compounds, including alkenes and alcohols. Rearrangement reactions are significant in organic chemistry because they can lead to the formation of more stable or reactive products, influencing the pathways of chemical synthesis and the development of new materials.