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A 2-methyl 3-pentanol yields alkenes from direct elimination, but may also be su

ID: 914346 • Letter: A

Question

A 2-methyl 3-pentanol yields alkenes from direct elimination, but may also be susceptible to rearrangement. 2-methyl 1-pentence as well a small amount of 3-methyl-2-pentence (E and Z) can form during the dehydration of this alcohol. Write a mechanism that accounts for these products. B one of two possible rearrangements of the parent ion of 2-methyl-3-pentanol is more likely than the other. (The parent ion is the one formed first after loss of the leaving group). Tell which rearrangement is more likely, and explain why there is a difference.

Explanation / Answer

ANSWER:

The answer od both 5(a) and 5(b) are given on image

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