Dehydration of Alcohols

Question 1

What is formed from the dehydration of alcohols?

Answer 1

= alkenes
= water
= regenerated acid catalst

Question 2

What are the conditions of this reaction?

Answer 2

= heat under reflux
= concentrated sulfuric acid
= concentration phosphoric (V) acid
= concentrated acid acts as a catalyst

Question 3

How does the alkene form from the alchol?

Answer 3

= removes an OH group and adjacent hydrogen

Question 4

What is the mechanism for the dehydration of alchols?

Answer 4

= lone pairs on oxygen molecule
= attracted to the positive hydrogen ion from the acid catalyst- forms a covaletn bond
= positive oxygen aotm
= pair of electrons in covalent bond between carbon and oxygen move onto oxygen molecule
= causes molecule of water relewased
= pair of elecyrons between a carbon and hydrogen form a double bond
= H+ ion
= alkene is formed