Naming substituted benzene molecules
المؤلف:
University of Missouri System
المصدر:
Introductory chemistry
الجزء والصفحة:
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10-12-2020
2747
Naming substituted benzene molecules
Naming substituted benzene molecules is straightforward. If there is only one substituent, the substituent is named as a side chain on a benzene molecule, like this:
If there are two or more substituents on a benzene molecule, the relative positions must be numbered, just as an aliphatic chain of C atoms is numbered. The substituent that is first alphabetically is assigned position 1, and the ring is numbered in a circle to give the other substituents the lowest possible number(s).
If an aliphatic chain attached to a benzene ring has more carbons, the benzene ring is treated as a substituent and is given the name phenyl-. This molecule is 3-phenylheptane:
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