4. Alkanes and Cycloalkanes

Without looking at the structures, give molecular formulas for the compounds: (a) 4-(1,1-dimethylethyl)octane and (b) 5-(1,2,2-trimethylpropyl)nonane. Use the names of the groups to determine the number of carbon atoms; then use the (2n + 2) rule.

Give structures and names for

a. the five isomers of C₆H₁₄

Name the following alkanes and haloalkanes. When two or more substituents are present, list them in alphabetical order.

(a)

All of the following names are incorrect or incomplete. In each case, draw the structure (or a possible structure) and name it correctly.

a. 3-ethyl-4-methylpentane

b. 2-ethyl-3-methylpentane

c. 3-dimethylhexane

Draw the structures of the following compounds.

a. 4-(1,1-dimethylethyl)octane

Which of the following structures represent the same compound? Which ones represent different compounds?

(a)

Provide IUPAC names for the following compounds.

a. (CH₃)₂CHCH₂CH₃

b. CH₃—C(CH₃)₂—CH₃

c.

Give the IUPAC names of the following alkanes.

(a) CH₃C(CH₃)₂CH(CH₂CH₃)CH₂CH₂CH(CH₃)₂

(b)

Name the following alkanes and haloalkanes. When two or more substituents are present, list them in alphabetical order.

(c)

(d)

The following names are all incorrect or incomplete, but they represent real structures. Draw each structure and name it correctly.

e. 2-cyclohexylbutane

f. 2,3-diethylcyclopentane