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Chapter 8: Q.28 (page 325)

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

a.

b.

c.

d.

Short Answer

Expert verified

The major alkyl halide as the reactants are shown below:

Step by step solution

01

Position of  β hydrogen

The β hydrogen position will be such that it exclusively forms the product provided.

02

Position of the leaving group

The leaving group position decides the product formation. Both the leaving group and β hydrogen are in an antiperiplanar position.

Based on the mentioned steps, the following alkyl halides are drawn.

Representation of the possible alkyl halide from a

Representation of the possible alkyl halide from b

Representation of the possible alkyl halide from c

Representation of the possible alkyl halide from d

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Most popular questions from this chapter

Consider the following E2 reaction.

a. Draw the by-products of the reaction and use curved arrows to show the movement of

electrons.

b. What happens to the reaction rate with each of the following changes? [1] The solvent is changed to DMF. [2] The concentration of -OC(CH3)3is decreased. [3] The base is changed to localid="1648628375469" OH-. [4] The halide is changed to localid="1648628387551" CH3CH2CH2CH2CH(Br)CH3[5] The leaving group is changed to localid="1648628394364" I–.

Several factors can affect alkene stability. Explain why alkene A is more stable than alkene B even though both contain disubstituted carbon-carbon double bonds.

Draw the structure of a dihalide that could be used to prepare each alkyne. There may be more than one possible dihalide.

a.

b.

c.

Dehydrohalogenation of 1-chloro-1-methyl cyclopropane affords two alkenes (A and B) as products. Explain why A is the major product despite the fact that it contains the less substituted double bond.

Draw both theSN1and E1 products of each reaction.

a.

b.
See all solutions

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