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Chapter 6 209
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steric effect
an effect due to the space occupied by a substituent.
steric hindrance
a hindrance due to bulky groups at the site of a reaction that make it difficult for
the reactants to approach one another.
syn addition
an addition reaction in which the two added substituents add to the same side of
the molecule.
tertiary carbocation
a carbocation with a positive charge on a tertiary carbon.
vicinal
refers to substituents on adjacent carbons.