Dehydration of alcohols is the reverse reaction of the hydration of an alkene. Typical reaction conditions include heating the alcohol in the presence of a strong acid, which will produce an alkene product. In this tutorial we will explore 1. the dehydration of secondary and tertiary alcohols 2. when mixture of products are expected and how to determine the major product 3. when rearrangements are expected and how to determine the major product 4. the dehydration of primary alcohols 20 Secondary alcohols can also undergo elimination using the E1 mechanism. Since tertiary carbocations are more stable than secondary carbocations, you will need to watch out for the possibility of carbocation rearrangements. If a more stable carbocation can be formed by a hydride or alkyl shift, this will occur before the beta hydrogen abstraction to give the alkene. Draw the carbocation rearrangement product of the secondary carbocation shown.

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter10: Alcohols
Section: Chapter Questions
Problem 10.52P: Alcohols are important for organic synthesis, especially in situations involving alkenes. The...
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Dehydration of alcohols is the reverse reaction of the hydration of an alkene. Typical reaction conditions include heating the
alcohol in the presence of a strong acid, which will produce an alkene product.
In this tutorial we will explore
1. the dehydration of secondary and tertiary alcohols
2. when mixture of products are expected and how to determine the major product
3. when rearrangements are expected and how to determine the major product
4. the dehydration of primary alcohols
Secondary alcohols can also undergo elimination using the E1 mechanism. Since tertiary carbocations are more stable than
secondary carbocations, you will need to watch out for the possibility of carbocation rearrangements. If a more stable
carbocation can be formed by a hydride or alkyl shift, this will occur before the beta hydrogen abstraction to give the alkene.
+
Draw the carbocation rearrangement product of the secondary
carbocation shown.
Transcribed Image Text:Dehydration of alcohols is the reverse reaction of the hydration of an alkene. Typical reaction conditions include heating the alcohol in the presence of a strong acid, which will produce an alkene product. In this tutorial we will explore 1. the dehydration of secondary and tertiary alcohols 2. when mixture of products are expected and how to determine the major product 3. when rearrangements are expected and how to determine the major product 4. the dehydration of primary alcohols Secondary alcohols can also undergo elimination using the E1 mechanism. Since tertiary carbocations are more stable than secondary carbocations, you will need to watch out for the possibility of carbocation rearrangements. If a more stable carbocation can be formed by a hydride or alkyl shift, this will occur before the beta hydrogen abstraction to give the alkene. + Draw the carbocation rearrangement product of the secondary carbocation shown.
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Hi! It still says the answer is wrong and "a hydride shift will occur. a tertiary carbocation should be formed"

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