The E2 reaction mechanism is a concerted, second-order elimination process where deprotonation and leaving group departure occur simultaneously in a single step without carbocation rearrangement. The theoretical outcome depends on the interplay between thermodynamic stability (Zaitsev's Rule), steric hindrance of the base, and the electronic nature of the leaving group which dictates whether the transition state resembles an alkene or a carbanion. This concept is fundamental to organic chemistry for predicting major product distributions in elimination reactions involving strong bases and secondary or tertiary substrates.
The E2 reaction mechanism is a concerted, second-order elimination process where deprotonation and leaving group departure occur simultaneously in a single step without carbocation rearrangement. The…