Embedded Files
Lesson Instructions
Lesson Instructions
Review the learning goals and success criteria for Topic 7: Amines and Amides.
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 amines.
Name and draw amides.
Minds On
Minds On
Amines and Amino Acids
Amines and Amino Acids
Have you ever wondered where the "amino" in the term, "amino acid" comes from? Take a look at the diagram below. What are two common features in all of the amino acids?
Hopefully you were able to identify the presence of carboxylic acid in each of the amino acids above. Remember that carboxylic acids have the formula, R-COOH. In this lesson we will be learning how to name amines. Amines are associated with the nitrogen present in each of the amino acids. We will learn how to classify amines as primary, secondary, or tertiary.
Amides and Air Pollution
Amides and Air Pollution
Air quality and climate are impacted by nitrogenous compounds in our atmosphere. Specifically, nitrogen-containing amines react in our atmosphere, creating compounds that have implications for the climate and our health. Where do these nitrogenous compounds come from? They are released into our atmosphere naturally and industrially. Nitrogenous compounds have been used as solvents in carbon capture and storage (CCS) technology. They are also emitted from cigarette smoke. Amines have been experimentally and theoretically proven to oxidize into amides which are then further oxidized to isocyanates. These isocyanates then hydrolyse into ammonia. This can be detrimental as ammonia reacts with other chemicals in the atmosphere, contributing to smog, impacting the climate, and causing potential health issues.
Retrieved from https://www.compoundchem.com/2015/10/21/rtc-week-2015-3-nitrogen-containing-atmospheric-pollutants/
Action
Action
Amines
Amines
An amine is an organic compound derived from ammonia (NH3) by replacement of one more more hydrogen atoms with alkyl groups.
They are classified according to the # of alkyl groups attached to the nitrogen.
Similar to alcohols, there are three types of amines: primary amines (1°), secondary amines (2°), and tertiary amines (3°).
primary amines (1°)
primary amines (1°)
1 ALKYL GROUP ATTACHED TO THE N.
secondary amines (2°)
secondary amines (2°)
2 ALKYL GROUPS ATTACHED TO THE N.
tertiary amines (3°)
tertiary amines (3°)
3 ALKYL GROUPS ATTACHED TO THE N.
NAMING AMINES
NAMING AMINES
The parent chain is based on the longest chain that contains the -N atom.
The chain is numbered so as to give the amine unit the lowest possible position number.
Replace the -e at the end with the name -amine.
Indicate position #.
Name other alkyl groups using N- instead of a position # if they are attached to the nitrogen.
List alkyl groups attached to N before groups attached to the parent chain.
Example 1. Name the following amine.
Example 1. Name the following amine.
Figure 1. pentan-2-amine.
Example 2. Name the following amine.
Example 2. Name the following amine.
Figure 2. N-methylbutan-1-amine.
Example 3. Name the following amine.
Example 3. Name the following amine.
Figure 3. N,N-dimethylpropan-2-amine.
Example 4. Name the following amine.
Example 4. Name the following amine.
Figure 4. N-methyl-3-methylpentan-2-amine.
Update - You could also name this:
N,3-dimethylpentan-2-amine
Example 5. Name the following amine.
Example 5. Name the following amine.
Note: this is a new example as of May 1, 2020. Please copy into your fill-in-the-blank notes.
Figure 5. N,N,3-trimethylpentan-2-amine
Amides
Amides
Amides contain the carbonyl group bonded to a nitrogen atom.
NAMING AMIDES
NAMING AMIDES
The root name is based on the longest chain including the carbonyl group of the amide group.
Since the amide group is at the end of the parent chain, the C=O carbon must be C1.
Replace the -e ending with -amide.
Name any alkyl groups attached to the N, using N- and those attached to the parent chain using position #.
The N- locant is listed first when the same substituent occurs on N and other locations, e.g. N,2-dimethyl.
Condensed structures shown as R-CONR'
Example 6. Name the following amide.
Example 6. Name the following amide.
Figure 6. 2-methylpropanamide.
Example 7. Name the following amide.
Example 7. Name the following amide.
Figure 7. N-ethyl-N-methylpropanamide.
Example 8. Name the following amide.
Example 8. Name the following amide.
Note: this is a new example as of May 1, 2020. Please copy into your fill-in-the-blank notes.
Figure 8. 2-bromo-N-ethyl-N-methylpropanamide
Example 9. Name the following amide.
Example 9. Name the following amide.
Note: this is a new example as of May 1, 2020. Please copy into your fill-in-the-blank notes.
Figure 9. N-ethyl-2-methyl-N-propylpropanamide.
Example 10. Name the following amide.
Example 10. Name the following amide.
Figure 10. 2-methyl-N-propylpropanamide.
Amines and Amides - Extra Practice
Amines and Amides - Extra Practice
Click below to reveal some extra practice questions for the drawing and naming of amines and amides. 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 amines?
name and draw amides?
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