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Lesson Instructions
Lesson Instructions
Review the learning goals and success criteria for Topic 6: Carboxylic Acids and Esters.
Review the minds on, action, and consolidation sections of the lesson, completing any tasks as outlined.
Complete the fill-in-the-blanks handouts that have been provided to you. They have been linked below.
Practice and apply what you've learned by completing the practice tasks outlined at the end of the lesson.
Learning Goals
Learning Goals
I am learning to ...
Name and draw carboxylic acids.
Name and draw esters.
Minds On
Minds On
Action
Action
Carboxylic Acids
Carboxylic Acids
Carboxylic acids contain the carboxyl group located at the end of a parent chain.
NAMING CARBOXYLIC ACIDS
NAMING CARBOXYLIC ACIDS
Position #1 will be where the carboxyl group is located.
Replace the -e ending with -oic acid.
Number and name any alkyl substituents.
Condensed Structures are shown as R-COOH [i.e. acetic acid (IUPAC: ethanoic acid) CH₃COOH].
Example 1. Name the following carboxylic acid.
Example 1. Name the following carboxylic acid.
Figure 1. 3-methylbutanoic acid.
Example 2. Name the following carboxylic acid.
Example 2. Name the following carboxylic acid.
Figure 2. 4-methylpentanoic acid.
Example 3. Name the following carboxylic acid.
Example 3. Name the following carboxylic acid.
Figure 3. benzoic acid.
Example 4. Name the following carboxylic acid.
Example 4. Name the following carboxylic acid.
Figure 4. phenylethanoic acid.
Example 5. Draw the following carboxylic acid.
Example 5. Draw the following carboxylic acid.
2-hydroxy-4-methylhexanoic acid
2-hydroxy-4-methylhexanoic acid
Esters
Esters
Esters contain the carboxyl group between two carbon chains.
NAMING ESTERS
NAMING ESTERS
Name the parent chain, which includes the C=O group.
Replace the -e ending with -oate.
Name the alkyl group attached to the -O-, indicate the position of attachment to the alkyl group (if not C#1).
Put the 2 names together (but as separate words).
Condensed structures are shown as R-COOR'.
Example 6. Name the following ester.
Example 6. Name the following ester.
Figure 5. ethyl butanoate.
Example 7. Name the following ester.
Example 7. Name the following ester.
Figure 6. propyl methanoate.
Example 8. Name the following ester.
Example 8. Name the following ester.
Figure 7. butan-2-yl propanoate.
Example 9. Name the following ester.
Example 9. Name the following ester.
Note: this is an updated structure from the picture you have in your fill-in-the-blank notes as of May 1, 2020. Please re-draw in your notes.
Figure 8. butan-2-yl methylpropanoate.
Carboxylic Acids and Esters - Extra Practice
Carboxylic Acids and Esters - Extra Practice
Click below to reveal some extra practice questions for the drawing and naming of carboxylic Acids and esters. Note, these are not included in the textbook or your fill-in-the-blanks notes.
This lesson is now complete. Consolidate your learning by evaluating the self-check below and the assigned practice questions.
Self-Check
(This is a self-assessment of your learning – you do not need to submit this).Self-Check
How prepared am I to start my homework? Can I ...
name and draw carobxylic acids?
name and draw esters?
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