The name 2-ethyl-3-chlorohexane does not follow IUPAC conventions - HSC - SSCE Chemistry - Question 7 - 2022 - Paper 1
Question 7
The name 2-ethyl-3-chlorohexane does not follow IUPAC conventions.
What is the systematic name of this organic compound?
A. 3-chloro-2-ethylhexane
B. 4-chloro-3-me... show full transcript
Worked Solution & Example Answer:The name 2-ethyl-3-chlorohexane does not follow IUPAC conventions - HSC - SSCE Chemistry - Question 7 - 2022 - Paper 1
Step 1
Identify the Structure and Correct Naming
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Answer
To systematically name the compound, first, identify the longest continuous carbon chain, which is a heptane (7 carbons). The next step is to locate the substituents: a chloro group (Cl) and an ethyl group (C2H5). Position the chloro group on the second carbon and the ethyl group on the fourth to minimize the numbers assigned to the substituents according to IUPAC rules.
Step 2
Correct Naming Scheme
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Answer
The correct order will prioritize the chloro substituent due to its higher precedence compared to alkyl groups. Therefore, the correct systematic name becomes 4-chloro-3-methylheptane.