4. Alkanes and Cycloalkanes

Draw the cis and trans isomers for the following:

b. 1-ethyl-3-methylcyclobutane

For those compounds that can exist as cis and trans isomers, draw and label the isomers.

3.

4.

Draw the structures and give the common and systematic names for the seven alkynes with molecular formula C₆H₁₀.

a. Draw the structure of cis-CH₃CH=CHCH₂CH₃ showing the pi bond with its proper geometry.

b. Circle the six coplanar atoms in this compound.

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

(c)

Name the following:

a.

b.

Draw a structure for each compound (includes old and new names).

g. vinylcyclopropane

h. (Z)-2-bromo-2-pentene

Draw a structure for each compound (includes old and new names).

i. (3Z,6E)-1,3,6-octatriene

Draw the structure that corresponds to the name provided.

(d) (2R,4Z)-5-bromopent-4-ene-1,2-diol

Draw the structure that corresponds to the name provided.

(b) (2R,3R,4S)-heptane-2,3,4-triol

Provide the IUPAC name for the following molecules.

(a)

Name the following:

a.

For each of the following compounds, draw the possible geometric isomers and name each isomer:

a. 2-methyl-2,4-hexadiene

For each of the following compounds, draw the possible geometric isomers and name each isomer:

b. 1,5-heptadiene