Organic Chemistry (8th Edition)

Published by Pearson
ISBN 10: 0321768418
ISBN 13: 978-0-32176-841-4

Chapter 1 - Introduction and Review - Study Problems - Page 38: 1-37 b

Answer

The resonance forms are shown in the picture below.

Work Step by Step

The electrons in the bond between carbon 2 and carbon 3 are delocalized and go between carbon 3 and carbon 4. In the last resonance form, the electrons between carbon 1 and O are delocalized.
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