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saul85 [17]
3 years ago
8

Provide the structures of the fragments that result when the molecular ion of 2-heptanone undergoes fragmentation via McLafferty

rearrangement. Include charges and single electrons.

Chemistry
1 answer:
stiks02 [169]3 years ago
6 0

Answer:

See explanation

Explanation:

We have to start, remembering the mechanism behind the <u>McLafferty rearrangement</u>. The hydrogen in the g<u>amma carbon</u> (in this case, carbon 5) would be removed by a <u>heterolytic rupture</u> due to the <u>cation-radical</u> placed in the oxygen of the <u>carbonyl group</u>. Then we will have several heterolytic ruptures. Between <u>carbons alpha and beta</u> (in this case, 4 and 3) and a rupture in the <u>carbonyl group</u>. Due to these ruptures, <u>two double bonds would be formed</u>. One double bond in the alcohol cation-radical and the other one in the alkene.

See figure 1

I hope it helps!

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