9. Alkenes and Alkynes

What is the major product obtained when each of the following alcohols is heated in the presence of H₂SO₄?

b.

What is the major product obtained when each of the following alcohols is heated in the presence of H₂SO₄?

a.

Propose a mechanism for each of the following reactions:

a.

Predict the major products of dehydration catalyzed by sulfuric acid.

(a) hexan-1-ol

(b) hexan-2-ol

(c) pentan-3-ol

Identify the alcohol(s) that would produce the following alkenes under the given conditions.

(a)

When HCl was used for the attempted dehydration reaction shown, a reaction occurred, but none of the desired product was formed. Suggest the identity of the actual product obtained.

Predict the product(s) of the reactions shown.

(b)

Identify two different alcohols that can be dehydrated (one with rearrangement) to form the alkene shown.

Identify two different alcohols that can be dehydrated (one without rearrangement) to form the alkene shown.

Produce a mechanism for the following transformation.

Predict the major product of the following elimination reactions.

(a)

Predict the major product of the following elimination reactions.

(b)

Predict the major product of the following elimination reactions.

(c)

Predict the product(s) of the reactions shown.

(a)

Identify the alcohol(s) that would produce the following alkenes under the given conditions.

(b)