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Question
Which one of the following rearranged product of the given compound is the most stable?
Which one of the following rearranged product of the given compound is the most stable?
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Solution
The correct option is C
Whenever a carbocation is formed in a reaction, it may rearrange. Only those carbocations which can produce more stable forms will rearrange. So, here first ring expansion will take place, so that five membered ring will form. After this, 1, 2 Hydride shift will take place to form a tertiary carbocation which is more stable than secondary carbocation. Hence, option c is the most stable rearranged product as option a and b contain secondary carbocation.
Whenever a carbocation is formed in a reaction, it may rearrange. Only those carbocations which can produce more stable forms will rearrange. So, here first ring expansion will take place, so that five membered ring will form. After this, 1, 2 Hydride shift will take place to form a tertiary carbocation which is more stable than secondary carbocation. Hence, option c is the most stable rearranged product as option a and b contain secondary carbocation.
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