Organic Chemistry (8th Edition)

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

Chapter 16 - Aromatic Compounds - Problems - Page 734: Problem 16-19 g

Answer

Aromatic

Work Step by Step

It is aromatic because all the elements in the ring are $sp^2$ and the ring has 6 pi electrons: 4 from the double bonds and 2 from the lone pair on nitrogen attached to H. Moreover, if you draw its resonance structure it forms a ring with 6 pi electrons.
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