The reaction of a certain alcohol with HBr yields a mixture of alkyl bromides. Consider the structures of the major and...

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The reaction of a certain alcohol with HBr yields

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Answer 1

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Answer #2

Concepts and reason

The products of reaction of an alcohol with HBr is given. The structure of the starting alcohol needs to be given. Decide the structure by drawing the carbocation of the given alkyl bromides to decide the starting alcohol.

Fundamentals

Alcohols undergo substitution reaction with hydrogen halides to form haloalkanes. The reaction may follow either ${{\rm{S}}_{\rm{N}}}1$ or ${{\rm{S}}_{\rm{N}}}2$ mechanism depending upon the structure of the alcohols.

The alkyl halides are tertiary and secondary as shown below:

HC
CH3
CH;
HzCOY
Сн,
Major
Minor

Form the carbocations of the given products as shown:

H,C,
Hąc
CH, HCCH,
HỌC
CH,
CH3

The structure of the starting alcohol is as follows:

H3CCH;
H₃C Y
СН3
ОН

Ans:

The structure of the starting alcohol is as follows:

H3CCH;
H₃C Y
СН3
ОН

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Answer 2

Answer #1

CAI after the carbocation is formed, re arrangement takes place to give the major product

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Answer 3

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