Question

What is peroxide effect
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Answer 1

Answer:

What is peroxide effect ?

Explanation:

Ans: Peroxide effect: The change in regioselectivity of the addition of HBr to an alkene or alkyne in the presence of a peroxide. ... In the absence of a peroxide, HBr adds to propene via an ionic mechanism (with a carbocation intermediate) to give 2-bromopropane. Markovnikov's Rule is obeyed.

hppe it helps ..

Answer 2

Answer:

The addition of HBr to unsymmetrical alkenes against the Markownikoff s rule is called peroxide effect or Anti Markownikoff s rule. According to this effect, the negative part of the unsymmetrical attacking reagent attached to that carbon atom of the double bond of unsymmetrical alkene which bears the higher number of hydrogen atoms." This reaction takes place in the presence of peroxide.

Propene

CH

3

−CH=CH

2

+HBr

peroxide

n−propylbromide

CH

3

−CH

2

−CH

2

−Br

Explanation:

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