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Chapter 8: Q.31 (page 326)

Rank the following alkenes in order of increasing stability:

Short Answer

Expert verified

The stability of the alkenes are mentioned below:

Step by step solution

01

Identification of the double-bonded carbons

The double bonds are identified first.

Representation of the double bond

02

Classification based on substitution

Structure A is disubstituted. It is monosubstituted for B and trisubstituted for C.

Representation of the alkyl substituents

03

Stability based on the number of substitutions present

More the count of substitutions, more will be the alkene stability because, with the increase of substitution, +I effect of the alkyl groups increase the stability of the system.

So the mentioned alkenes are ranked in the following:

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Most popular questions from this chapter

Which mechanism, E1 or E2, will occur in each reaction?

a.

b.

c.

d.

How does each of the following changes affect the rate of an E1 reaction?

a. doubling [RX]

b. doubling [B:]

c. changing the halide from (CH3)3CBrto CH3CH2CH2Br

d. changing the leaving group from Cl–toBr–

e. changing the solvent from DMSO to CH3OH

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.

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

Draw all products, including stereoisomers, in each reaction.

a.

b.

c.

d.
See all solutions

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