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Chapter 15: Q18. (page 570)

Question: Draw all constitutional isomers formed when each alkene is treated with NBS + hν.

a.

b.

c.

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

 Step 1: N-bromosuccinimide

It is named NBS and is used to produce the product with low concentration of bromine.

02

Formation of products

a.

The reaction is shown below:

Formation of product in a

b.

The reaction is shown below:

Formation of product in b

c.

The reaction is shown below:

Formation of product in c

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Most popular questions from this chapter

Question:Draw the products formed in each reaction and include the stereochemistry around any stereogenic centers.

a.

b.

c.

d.

Question: With reference to the indicated C-H bonds in 2-methylbutane.

a. Rank the C-H bonds in order of increasing bond length.

b. Draw the radical resulting from cleavage of each C-H bond and classify it as 10,20, or 30

c.Rank the order of radicals in order of increasing stability.

Rank the C-H bonds in order of increasing ease of H abstractions in a radical halogenation reaction.

Question: Draw the products formed when a chlorine atom reacts with each species.

a.

b.

c.

d. O2

Question: Devise a synthesis of 1-methylcyclohexene oxide from methylcyclohexane. You may use any other required organic or inorganic reagents.

Question: Consider the following Bromination:

(CH)3 CH +Br2→∆(CH3)3 CBr +HBr

(a) Calculate ΔH° for this reaction by using the bond dissociation energies in Table 6.2. (b) Draw out a stepwise mechanism for the reaction, including the initiation, propagation, and termination steps. (c) Calculate ΔH° for each propagation step. (d) Draw an energy diagram for the propagation steps. (e) Draw the structure of the transition state of each propagation step.
See all solutions

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