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Addition Reaction

Definition: What is Addition Reaction?

Addition reaction occurs when two or more reactants combine to form a product without the loss of any atoms present in the reactants. Addition reaction is common in compounds that have unsaturated C-C bond, like double (alkene) and triple (alkyne) bonds. The weaker π bond is converted into two new stronger σ bonds. Alkenes can give rise to a wide variety of products with various regioselectivity and stereoselectivity depending on the reagent and reaction conditions. There are typically two types of addition reactions – electrophilic addition and nucleophilic addition. Michael Addition is a type of nucleophilic addition reaction [1-4].

Addition Reaction

Examples of Addition Reaction

Examples of addition reactions that are common in alkene include halogenation, hydration, hydrohalogenation, hydrogenation, and polymerization [1].

Addition Reaction Alkene Examples

Alkyne can undergo addition reaction to give an alkene or its derivative.

Addition Reaction Alkyne

Mechanism of Addition Reaction

The mechanisms of electrophilic and nucleophilic addition reactions proceed through intermediates.

Addition Reaction Mechanism Electrophilic
Addition Reaction Mechanism Nucleophilic

References

  1. Definition and example – Chem.libretexts.org
  2. Definition – Chem.ucalgary.ca
  3. Definition – Chem.ucla.edu
  4. Definition – Chemistry.msu.edu

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