What is the IUPAC name of the molecule shown above?
A - VCE - SSCE Chemistry - Question 4 - 2020 - Paper 1
Question 4
What is the IUPAC name of the molecule shown above?
A. 3-hydroxy-3-ethyl-propan-1-amine
B. 3-amino-1-methylpropan-1-ol
C. 3-hydroxypentan-1-amine
D. 1-aminopenta... show full transcript
Worked Solution & Example Answer:What is the IUPAC name of the molecule shown above?
A - VCE - SSCE Chemistry - Question 4 - 2020 - Paper 1
Step 1
Identify the longest carbon chain
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Answer
Examine the molecular structure to determine the longest continuous carbon chain. In this case, the longest chain contains five carbon atoms.
Step 2
Determine the functional groups
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Answer
Identify the functional groups present in the molecule. Here we see an amino group (–NH₂) and a hydroxyl group (–OH) attached to the carbon chain.
Step 3
Number the carbon chain
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Answer
Number the carbon chain starting from the end closest to the functional groups to give the lowest possible numbers. In this case, the amino group is at position 1 and the hydroxyl group is at position 3.
Step 4
Construct the IUPAC name
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Answer
Using the information gathered, the IUPAC name is constructed. The amino group takes precedence over the hydroxyl group in naming, resulting in '1-aminopentan-3-ol'.
Step 5
Select the correct answer
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Answer
From the options given, the correct answer is D: 1-aminopentan-3-ol.
