Concept explainers
Interpretation:
The IUPAC names of the given compounds are to be determined.
Concept introduction:
The halogen is treated as substituent on an
The two substituents are considered of equal rank, when both halogen and an alkyl substituent are on the same carbon chain. The substituent nearer the end of the chain is given the lower number.
Answer to Problem 20P
Solution:
Explanation of Solution
(a)
In this structure, the longest carbon chain is “pentane,” which contains
Therefore, the IUPAC name of the given structure is
(b)
In this structure, the longest carbon chain is “pentane,” which contains
Therefore, the IUPAC name of given structure is
(c)
In this structure, the longest carbon chain is “ethane,” which contains
Therefore, the IUPAC name of given structure is
(d)
The given compound is converted to the structural formula as shown below:
In the given structure, the longest possible parent chain is “ethane,” which contains
Therefore, the IUPAC name of given structure is
(e)
In the given structure, the longest possible parent chain is “ethane,” which contains
(f)
In the given structure, the parent chain is cyclic and has six carbon atoms. Hence the parent alkane is cyclohexane. One carbon atom is attached to a hydroxyl group. Hydroxyl groups take precedence over alkyl groups in determining the direction in which a carbon chain is numbered. Hence, the carbon atom attached to the hydroxyl group is numbered
Thus, the IUPAC name of the compound is
(g)
In the given structure, a five member cyclopentane ring is present. There is a three carbon atom chain bearing the hydroxyl group. The propane chain becomes the parent since the hydroxyl group is attached to it. The cyclopentane ring is considered as substituent and attached to the second carbon of the propane chain as shown:
Thus, the IUPAC name of the given structure is
(h)
In the given structure, the longest possible parent chain is “Hexane,” which contains
The prefix di is used to indicate the presence of two methyl groups.
Thus, the IUPAC name of the given structure is
(i)
In the given structure, the longest possible parent chain is “Hexane,” which contains
Thus, the IUPAC name of the compound is
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Chapter 5 Solutions
Organic Chemistry - Standalone book
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