There are eight different five-carbon alkyl groups.
(a) Draw them.
(b) Give them systematic names.
(c) In each case, label the degree of substitution (primary, secondary, or tertiary) of the head carbon atom, bonded to the main chain.
This exercise tells us that there are eight different molecules which can be described as five-carbon alkyl groups. This is not uncommon in organic chemistry, as carbon is very versatile in the ways that it can form chains and rings. This particular exercise concentrates on five-carbon alkyls.
Draw the structures of the eight different five-carbon alkyl groups.
It is important that you not accidentally duplicate the structure that you draw. It is a simple and common mistake that can be avoided by carefully comparing each structure to its partners, ensuring that no two are the same. The dots in the above drawing represent the attachment point of the alkyl groups, which are substituents on a larger molecule.
The systematic names of...