HBr can be added to alkenes in either the absence or presence of peroxides (producing either the Markovnikov or the anti-Markovn

Question

3 years ago

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HBr can be added to alkenes in either the absence or presence of peroxides (producing either the Markovnikov or the anti-Markovn

ikov addition product). What intermediates leading to the formation of the major product are observed when 1-butene is treated with 1) HBr or 2) HBr/peroxides?

Chemistry

1 answer:

Dmitrij [34] · Answer 1 · 2022-08-24T17:25:16+03:00

Answer:

1) 2-bromobutane

2) 1-bromobutane

Explanation:

In the HBr reaction, we will have a markovniknov reaction due to the carbocation formation. The Br- then would be added in the most substituted carbon of the double bond.

In the HBr/peroxide reaction we have the opposite case: an anti-markovnikov reaction. Therefore the Br- would be added in the least substitued carbon of the double bond.