1
Question
Major product for the above reaction is :
Major product for the above reaction is :
Open in App
Solution
The correct option is B
The given reaction undergoes dehydration.
Mechanism:
Step 1- Formation of carbocation:
Here the lone pair of electrons on hydroxyl group will abstract the H+ ion and remove as water molecule leaving behind 1∘ carbocation.
Step 2- Hydrogen shift:
From primary carbocation is less stable so the H atom in adjacent carbon get shifted to give a relatively stable 2∘ carbocation.
Step 3- β Elimination
Now the secondary carbocation undergo β elimination to form exocyclic double bond as major product because it is stabilised by 7α−Hydrogens.
Hence, the major product is (b).
The given reaction undergoes dehydration.
Mechanism:
Step 1- Formation of carbocation:
Here the lone pair of electrons on hydroxyl group will abstract the H+ ion and remove as water molecule leaving behind 1∘ carbocation.
Step 2- Hydrogen shift:
From primary carbocation is less stable so the H atom in adjacent carbon get shifted to give a relatively stable 2∘ carbocation.
Step 3- β Elimination
Now the secondary carbocation undergo β elimination to form exocyclic double bond as major product because it is stabilised by 7α−Hydrogens.
Hence, the major product is (b).
Suggest Corrections
0
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
