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Chapter 6: Q68E (page 284)

Which is more stable?

Short Answer

Expert verified

a.

b.

c.

Step by step solution

01

Definition of secondary carbon and tertiary carbon.

A carbon atom that is bonded to two other carbon atoms is known as a secondary carbon.

Carbon atom that is bonded to three other carbon atoms is known as a tertiary carbon atom.

02

a. Tertiary carbon is more stable than secondary carbon 

The first one is more stable because tertiary carbon is more stable than secondary carbonbecause secondary and primary carbon free radicals are less stable than tertiary carbon free radicals because the radical is stabilised by the electrical effects of the other connected groups, resulting in hyperconjugation.

03

b. Which is more stable.

The first one is more stable because the electron withdrawing chlorine destabilizes the carbon by increasing the amount of positive charge on the carbon.

04

c. Which is more stable?

The second one is more stable because tertiary carbon is more stable than the secondary carbon.

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Most popular questions from this chapter

What is the product of the addition of I-Cl to 1-butene? (Hint: Chlorine is more electronegative than iodine [Table 1.3].)

What stereoisomers would you expect to obtain from each of the following reactions

The second-order rate constant (in units of M-1 s-1) for acid-catalysed hydration at 25 掳C is given for each of the following alkenes:

a. Calculate the relative rates of hydration of the alkenes. (Hint: Divide each rate constant by the smallest rate constant of the series: 3.51 脳 10-8.)

b. Why does (Z)-2-butene react faster than (E)-2-butene?

c. Why does 2-methyl-2-butene react faster than (Z)-2-butene?

d. Why does 2,3-dimethyl-2-butene react faster than 2-methyl-2-butene?

Ozonolysis of an alkene, followed by treatment with dimethyl sulfide, forms the following product(s). Identify the alkene in each case.

What stereoisomers are obtained from hydroboration鈥搊xidation of the following compounds?Assign an Ror Sconfiguration to each asymmetric center.

a. cyclohexene c. cis-2-butene

b. 1-ethylcyclohexene d. (Z)-3,4-dimethyl-3-hexene
See all solutions

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