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One of the two possible rearrangements of the parent ion of 2-methyl-3-pentanol is more likely...

Question:

One of the two possible rearrangements of the parent ion of 2-methyl-3-pentanol is more likely than the other. Which rearrangement is more likely, and explain why there is a difference?

Wagner-Meerwein rearrangements

Wagner-Meerwein rearrangements are 1,2-Hydride shifts or 1,2-alkyl shifts which occur with carbocations if such a rearrangement leads to a more stable carbocation. These shifts are driven by thermodynamic control and they become feasible when a less substituted carbocation can rearrange to a more substituted one.

Answer and Explanation:

Consider the parent ion of 2-methyl-3-pentanol which can rearrange via two modes. The rearrangement of carbocation A to B is not favored because a...

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