Chapter 6: Q14E (page 181)
The following alkyl halide can be prepared by the addition of HBr to two different alkenes. Draw the structures of both (reddish-brown 5 Br).

Short Answer
The structure of alkenes is as follows;
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Chapter 6: Q14E (page 181)
The following alkyl halide can be prepared by the addition of HBr to two different alkenes. Draw the structures of both (reddish-brown 5 Br).

The structure of alkenes is as follows;
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Identify the likely electrophilic and nucleophilic sites in each of the following molecules:
a.

testosterone
b.

Methanphetamine
When isopropylidenecyclohexane is treated with strong acid at room
temperature, isomerization occurs by the mechanism shown below to yield 1-isopropylcyclohexene:

At equilibrium, the product mixture contains about 30% isopropylidene- cyclohexane and about 70% 1-isopropylcyclohexene.
(a)What is an approximate value of Keq for the reaction?
(b)Since the reaction occurs slowly at room temperature, what is its approximateG‡?
(c)Draw an energy diagram for the reaction.
Which of the following species are likely to be nucleophiles and which electrophiles? Which might be both?

For each alkene below, use curved arrows to show how it would react with a proton. Draw the carbocation that would form in each case.
a)

b)

c)

Reaction of with 2-methylpropene yields 2-bromo-2-methylpropane. What is the structure of the carbocation formed during the reaction? Show the mechanism of the reaction.
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