4. Alkanes and Cycloalkanes

Which of the following alkenes are E and which are Z?

(a)

Given the name, draw the structure of the following alkenes.

(a) (E)-4-ethyl-5-methyloct-3-ene

Given the name, draw the structure of the following alkenes.

(c) (Z)-3-isopropylhept-3-ene

Using IUPAC rules, name the following molecules.

(a)

Give IUPAC names for the following compounds.

(a)

(b)

(c)

Write structural formulas for the following compounds (includes both old- and new-style names).

g. 5,5-dibromo-4-phenylcyclooct-1-yne

h. (E)-6-ethyloct-2-en-4-yne

i.1,4-heptadiyne

Draw the structures that correspond to the following names.

(c) (Z)-2-chloro-7-methyloct-2-en-4-yne

Name the following halogenated compounds according to the IUPAC rules of nomenclature.

(c)

Identify the following alkenes as E or Z, if appropriate.

(d)

Identify the following alkenes as E or Z, if appropriate.

(c)

Identify the following alkenes as E or Z, if appropriate.

(b)

Identify the following alkenes as E or Z, if appropriate.

(a)

Given the name, draw the structure of the following alkenes.

(b) ((Z)-1-cyclohexyl-2-methylhept-2-ene

Draw the cis and trans isomers for the following:

a. 1-bromo-4-chlorocyclohexane

Disregarding stereoisomers, draw the structures of all alkenes with molecular formula C₅H₁₀. Which ones can exist as cis–trans isomers?