Organic Chemistry 9th Edition

Published by Brooks Cole
ISBN 10: 1305080483
ISBN 13: 978-1-30508-048-5

Chapter 7 - Alkenes: Structure and Reactivity - Exercises: 39

Answer

The IUPAC names of the compounds are: (a) 3-Methylcyclohexene (b) 1,5-Dimethylcyclopentene (c) 1-Ethylcyclobuta-1,3-diene (d) 1,2-Dimethylcyclohexa-1,4-diene (e) 5-Methylcyclohexa-1,3-diene (f) Cycloocta-1,5-diene

Work Step by Step

1. We number the cycloalkenes in such a manner that the double bond is between the first and the second carbon of the cycloalkene. 2. In case substituents are present, they are assigned the lowest number/locant. 3. The suffix -diene is used whenever there are two double bonds in the cycloalkene ring. Also their positions need to be indicated.
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