Concerted reaction

A concerted reaction is a chemical reaction in which all bond breaking and bond making occurs in a single step. Reactive intermediates or other unstable high energy intermediates are not involved. Concerted reaction rates tend not to depend on solvent polarity ruling out large buildup of charge in the transition state. The reaction is said to progress through a concerted mechanism as all bonds are formed and broken in concert. Pericyclic reactions, the S_N2 reaction, and some rearrangements - such as the Claisen rearrangement - are concerted reactions.

单词	Concerted mechanism
释义	Concerted mechanism 英语百科 Concerted reaction A concerted reaction is a chemical reaction in which all bond breaking and bond making occurs in a single step. Reactive intermediates or other unstable high energy intermediates are not involved. Concerted reaction rates tend not to depend on solvent polarity ruling out large buildup of charge in the transition state. The reaction is said to progress through a concerted mechanism as all bonds are formed and broken in concert. Pericyclic reactions, the S_N2 reaction, and some rearrangements - such as the Claisen rearrangement - are concerted reactions.
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Concerted mechanism

Concerted reaction