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5.1 Functional Group
We will start at the end of the functional group and work our way back to the first part of the name.
The position of the functional group affects which parent chain you choose.
When a molecule is connected to a compound, we call it an alcohol.
Alcohols have the same functional group, the - OH group.
One chapter on alcohols is in one of the functional groups in most textbooks.
As you progress through the course, you add to your list of functional group names.
You will learn at least six common functional groups throughout the course.
The H Halogens are not usually named in the compound.
They are named as substituents, which we will see later on.
The alcohol and carboxylic acid are placed next to each other.
carboxylic acids are very different from alcohols.
One will be a part of the name and the other will be a part of the substituent part.
The hierarchy needs to be followed.
A carboxylic acid takes precedence over an alcohol when it comes to the six groups shown above.
A compound with both of these groups is named as a ketone and we put the term "hydroxy" in the substituent part of the name to indicate the presence of the OH group.
There are two functional groups in this compound, so we have to decide between calling it an amine or an alcohol.
An alcohol outranks an amine if we look at the hierarchy above.
The compound is named using the suffix -ol.
The following compounds are named after what you would use as a suffix.
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