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Chapter 8: Q.27 (page 325)

Draw all possible constitutional isomers formed by dehydrohalogenation of each alkyl halide.

a.

b.

c.


d.

Short Answer

Expert verified

All possible constitutional isomers formed by dehydrohalogenation of each alkyl halide are shown below:

Step by step solution

01

Definition of constitutional isomers

Constitutional isomers are those kinds of isomers where the molecular formula and structures are the same but with different spatial arrangements of atoms.

02

Identification of the β hydrogens

The hydrogens that are abstracted are considered to be the 尾hydrogens as they are the first key part of elimination. Different types of 尾hydrogens give different types of products, which results in constitutional isomers.

Representations of beta hydrogens

03

Constitutional isomers

All possible constitutional isomers formed by dehydrohalogenation of each alkyl halide are shown below:

Representation of all the possible alkenes from a

Representation of all the possible alkenes from b

Representation of all the possible alkenes from c

Representation of all the possible alkenes from d

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Most popular questions from this chapter

For which reaction mechanisms鈥�SN1,SN2,E1, or E2鈥攁re each of the following statements true? A statement may be true for one or more mechanisms.

a. The mechanism involves carbocation intermediates.

b. The mechanism has two steps.

c. The reaction rate increases with better leaving groups.

d. The reaction rate increases when the solvent is changed from CH3OHto localid="1648646954099" (CH3)2SO.

e. The reaction rate depends on the concentration of the alkyl halide only.

f. The mechanism is concerted.

g. The reaction of localid="1648646960420" CH3CH2Brwith NaOH occurs by this mechanism.

h. Racemization at a stereogenic center occurs.

i. Tertiary (3掳) alkyl halides react faster than 2掳 or 1掳 alkyl halides.

j. The reaction follows a second-order rate equation.

Label each pair of alkenes as constitutional isomers, stereoisomers, or identical.

a.

b.

c.

d.

What is the major stereoisomer formed when each alkyl halide is treated with KOC(CH3)3?

a.

b.

In the dehydrohalogenation of bromocyclodecane, the major product is cis-cyclodecene rather than trans-cyclodecene. Offer an explanation.

What alkyl halide forms each of the following alkenes as the onlyproduct in an elimination reaction?

a.

b.

c.

d.
See all solutions

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