Quiz - Carbocation Rearrangements | Reactivity of Alcohols, Ethers, and Epoxides
Organic Chemistry 1 - Quiz - Carbocation Rearrangements
The product from the reaction below is the result of:
What is the principal substitution product of the following reaction?
Stability of carbocations: tertiary > secondary > primary. A less stable carbocation can rearrange to a more stable carbocation. These rearrangements involve the migration of an alkyl group or a hydrogen atom from a carbon atom to an adjacent carbon atom:
Which carbocation would not be likely to undergo rearrangement?
Electron-donating groups, such as alkyl groups, stabilize a positive charge ⇒ stability of carbocations: tertiary > secondary > primary. A less stable carbocation can rearrange to a more stable carbocation
Which alcohol is dehydrated fastest in concentrated H2SO4?
The mechanism of dehydration of alcohols in concentrated H2SO4 goes through a carbocation intermediate. The more stable the carbocation, the faster the reaction. Tertiary carbocations are the most stable, so tertiary alcohols are dehydrated faster than secondary and primary alcohols
Predict the major product of the following reaction:
The major product is the most rapidly formed product and therefore the one formed from the most stable carbocation, the tertiary carbocation:
Which 2 compounds ionize with loss of bromide ion to form the same carbocation?