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Chemistry LibreTexts

Addition-Elimination Mechanism

1.  The overall mechanism of an addition-elimination reaction is known as an addition-elimination mechanism.

2.  Some nucleophilic aromatic substitution reactions occur via a two-step mechanism in which the first step, by definition, is an addition and the second step an elimination.  The overall mechanism is known as an addition-elimination mechanism.

eg:

 

additioneliminationmechanism1.png

 

mechanism:

 

additioneliminationmechanism2.png