Question

How will convert the isopropylbromide to propene

Answer 1

Answer:

Dehydrohalogination of isopropyl bromide produce propene. And addition of HBr to the propene in the presence of peroxide produce n- propyl bromide. In the presence of peroxide anti markovnikov's addition of HBr takes place to propene and results in the formation n- propyl bromide.

Answer 2

Treatment of isopropylbromide with alcoholic KOH gives propene.

Explanation:

• Isopropyl bromide is the 2 bromo propane.

• It has a bromine group attached to the 2nd carbon.

• Alcoholic KOH is a weak base

• It draws the bromide from the alkyl chain and substituting it with OH.

• It thereby from the RO- because of the alcoholic solution.

• The alkoxide is a very strong base.

• Thus it can draw a hydrogen atom from the alpha carbon forming the double bond.

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