Addition reaction

In organic chemistry, an addition reaction is an organic reaction where two or more molecules combine to form a larger one (the adduct).^[1][2]

Addition reactions are limited to chemical compounds that have

(C=N) groups, can undergo addition, as they too have double-bond character.

An addition reaction is the reverse of an elimination reaction. For instance, the hydration of an alkene to an alcohol is reversed by dehydration.

There are two main types of

.

Depending on the product structure, it could promptly react further to eject a leaving group to give the addition–elimination reaction sequence.

Addition reactions are useful in

, as they can identify the existence and number of double bonds in a molecule. For example, bromine addition will consume a bromine solution, resulting in a color change:

$${\displaystyle {\ce {RR'C=CR''R'''+Br2(orange-brown)->[{} \atop {\ce {CCl4}}]RR'CBr-BrCR''R'''(typically\ colorless)}}}$$

Likewise hydrogen addition often proceeds on all double-bonds of a molecule, and thus gives a count of the number of a double and triple bonds through stoichiometry:

References

External links

• Quotations related to Addition reaction at Wikiquote

This organic chemistry article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e