Which of the following will most readily give the dehydrohalogenation product ?




As we learned
Haloarene -
Those organic compound in which halogen atom is directly attached to benzene is called haloarene.
- wherein

Here dehydrohalogenation goes by E1cb and most stable carbonion formation is favoured in option (1)
Option 1)

Option 2)

Option 3)

Option 4)

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