Drawing and Naming Organic Compounds with Specific Functional Groups
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PART A: Please download the practical manual and check inside appendix F of the manual for the following section.
Question A1
There are 21 functional groups listed in Appendix F in the practical manual. You must use 20 of them to create organic materials of your choosing. You must draw 8 compounds and use up all 20 functional groups while drawing the structure and naming the structure. You can use alkanes as many times as you want but all other functional groups can only be used once. Do not use chain lengths shorter than 4 carbons. An example is given below (do not use it as one of your examples). Please draw all examples in the same format as is given in the example below:
Table Columns: Number | Drawing | Name | Functional groups used
Example Row: Example | [Structural formula of 2-chloropentane: $CH_3CH(Cl)CH_2CH_2CH_3$] | 2-chloropentane | Alkane, Halide
Rows 1 to 7: [Empty cells for student response]
This question includes visual content: A table intended for recording organic chemistry structures. The table has four columns: 'Number', 'Drawing', 'Name', and 'Functional groups used'. The first row contains an example entry of a 2-chloropentane molecule drawn in a full structural formula (Lewis structure). The molecule shows a chain of 5 carbons with various hydrogen atoms and one chlorine atom attached to the second carbon. Beside it, the name '2-chloropentane' is written, and the functional groups are listed as 'Alkane' and 'Halide'. Below the example are 7 empty numbered rows for the student to fill in.
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Step by Step Written Solution
In this problem, we need to design eight unique organic compounds that collectively use twenty different functional groups. We must follow specific rules: each group is used only once except for alkanes, chains must be at least four carbons long, and we must name and draw each structure.
Organic Compound Design Task
- Draw 8 compounds
- Use 20 unique functional groups total
- Minimum 4 carbons per chain
- Provide IUPAC names
Since we need to use twenty groups across eight compounds, we should aim for two or three functional groups per molecule. Let's start with our first table entry.
Compound 1: Multiple Bonds
| Number | Name | Functional Groups |
|---|---|---|
| 1 | hex-4-en-2-yne | Alkane, Alkene, Alkyne |
For the second compound, let's combine oxygen-containing groups like alcohols and ethers.
Compound 2: Oxygen Groups
| Number | Name | Functional Groups |
|---|---|---|
| 2 | 3-methoxypropan-1-ol | Alkane, Alcohol, Ether |
Next, let's look at carbonyl groups. We can combine a ketone with an aldehyde in a longer chain.
Compound 3: Carbonyl Groups
| Number | Name | Functional Groups |
|---|---|---|
| 3 | 3-oxobutanal | Alkane, Aldehyde, Ketone |
Now for compound four, let's use a carboxylic acid and an ester linkage.
Compound 4: Acid and Ester
| Number | Name | Functional Groups |
|---|---|---|
| 4 | 3-methoxy-3-oxopropanoic acid | Alkane, Carboxylic Acid, Ester |
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