Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 20 - Sections 20.1-20.14 - Exercises - Problems by Topic - Page 993: 56b

Answer

The name of the alkyne is $4,5-dimethyl-2-heptyne$.

Work Step by Step

The longest carbon chain has 7 carbon atoms (hept-). There are two methyl substituents, one each at positions 4 and 5. The triple bond is at position 2. Hence, the name of the alkyne is $4,5-dimethyl-2-heptyne.$
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