Question

2-Bromo-3,3-dimethyl butane treated with alcoholic KOH

Answer 1

It will give 3,3 di methyl but-2-ene as alc koh shows e2 elimination therefore there wont be any shifting as e2 is a single step mechanism no carbocation is formed

Answer 2

When 2-Bromo-3,3-dimethyl butane is treated with alcoholic potassium hydroxide ( KOH ) , 3,3-dimethylbut-1-ene is formed .

• This reaction is known as the β elimination reaction .
• Alcoholic potassium hydroxide ( KOH ) is used for preparation alkenes from alkyl halides by elimiantion reaction .

• In comparison to aqueous potassium hydroxide ( KOH ) , alcoholic potassium hydroxide ( KOH ) is more strong base .