Chapter 6: 6-33-E-b (page 181)
For each reaction below identify the electrophile and the nucleophile
(a)

(b)

(c)

Short Answer
(b)

Nucleophile Electrophile
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Chapter 6: 6-33-E-b (page 181)
For each reaction below identify the electrophile and the nucleophile
(a)

(b)

(c)

(b)

Nucleophile Electrophile
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Identify the following reactions as additions, eliminations, substitutions, or rearrangements:
a.

b.

c.

d.

Electrostatic potential maps of (a) formaldehyde and (b) methanethiol are shown. Is the formaldehyde carbon atom likely to be electrophilic or nucleophilic? What about the methanethiol sulfur atom? Explain.

Add curved arrows to the following polar reactions to indicate the flow of electrons in each:
(a)

(b)

Follow the flow of electrons indicated by the curved arrows in each of the following polar reactions, and predict the products that result:

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.
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