Illustrated Glossary of Organic Chemistry
Addition reaction:
A reaction in which atoms or
groups
are added to opposite ends of
covalent bond
, usually a
pi bond
, but sometimes a
sigma bond
.
Addition of
HBr
to a the carbon-carbon
pi bond
of an
alkene
results in new C-H and C-Br
bonds
on opposite ends of the
alkene
pi bond
.
Addition of
HBr
to a carbon-carbon
sigma bond
of a
cyclopropane
ring results in new C-H and C-Br
bonds
where the
cyclopropane
carbon-carbon
bond
was ruptured.
Related terms:
Substitution reaction
,
elimination reaction
,
cycloaddition reaction
,
electrophilic addition reaction
,
nucleophilic addition reaction
,
carbonyl addition reaction
,
cycloaddition reaction
,
condensation reaction
,
anti-Markovnikov addition
,
Markovnikov addition
,
Markovnikov's rule
,
anti addition
,
syn addition
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