Electrophilic addition mechanisms describe the fundamental reaction pathway wherein a carbon-carbon double bond in alkenes acts as a nucleophile to attack electrophilic reagents, resulting in the formation of new sigma bonds and saturated derivatives. This theoretical framework relies on the formal definitions of carbocation intermediates, resonance stabilization effects involving alkyl substituents, and stereoelectronic requirements governing regioselectivity such as Markovnikov's rule. Operating within physical organic chemistry, this concept establishes the kinetic and thermodynamic principles that dictate product distribution in polar addition reactions across diverse functional groups.
Prerequisite chain context: requires Carbocation Stability Trends in Hydrocarbons.