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Concept explainers
(a)
Interpretation: The following incorrectly named compounds are to be drawn and named correctly.
Concept introduction: Organic compounds contain carbon and hydrogen atoms with their respective
To determine: The correct name of the given compound and its structure is to be drawn.
(a)
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Answer to Problem 121AE
Answer
The correct name of the compound is 2,3,5,6−Tetramethyl−octane whose structure is shown in Figure 1.
Explanation of Solution
Explanation
The correct name of the compound is 2,3,5,6−Tetramethyl−octane whose structure is shown in Figure 1.
The structure of 2−ethyl−3−methyl−5−isopropylhexane with its correct name is,
Figure 1
The root name hexane signifies the presence of six carbon atoms. 2−ethyl, shows the presence of ethyl group on second carbon atom and 3−methyl−5−isopropyl indicates the presence of methyl and isopropyl group on carbon three and fifth respectively. The correct name of this compound is 2,3,5,6−Tetramethyl−octane whose structure is shown in Figure 1.
(b)
Interpretation: The following incorrectly named compounds are to be drawn and named correctly.
Concept introduction: Organic compounds contain carbon and hydrogen atoms with their respective functional groups. When they are named the root term, suffix and prefix are to be remembered. They are named according to the International Union of Pure and Applied Chemistry (IUPAC).
To determine: The correct name of the given compound and its structure is to be drawn.
(b)
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Answer to Problem 121AE
Answer
The correct name of the compound is 2,3,5,6−Tetramethyl−octane whose structure is shown in Figure 2.
Explanation of Solution
Explanation
The correct name of the compound is 2,3,5,6−Tetramethyl−heptane whose structure is shown in Figure 2.
The structure of 2−ethyl−4−tert−butylpentane with its correct name is,
Figure 2
The root name is pentane which signifies the presence of five carbon atoms in a chain, 2−ethyl−4−tert−butyl shows that ethyl and tertiary butyl groups are attached to carbon two and four respectively. This compound is correctly named as 2,3,5,6−Tetramethyl−heptane because the longest carbon chain has seven carbon atoms which contains four methyl groups on carbon two three and five. Hence, the correct name is 2,3,5,6−Tetramethyl−heptane.
(c)
Interpretation: The following incorrectly named compounds are to be drawn and named correctly.
Concept introduction: Organic compounds contain carbon and hydrogen atoms with their respective functional groups. When they are named the root term, suffix and prefix are to be remembered. They are named according to the International Union of Pure and Applied Chemistry (IUPAC).
To determine: The correct name of the given compound and its structure is to be drawn.
(c)
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Answer to Problem 121AE
Answer
The correct name of the compound is 2,3,4−Trimethyl−hexane whose structure is shown in Figure 3.
Explanation of Solution
Explanation
The correct name of the compound is 2,3,4−Trimethyl−hexane whose structure is shown in Figure 3.
The structure of 3-methyl 4-isopropylpentane with its correct name is,
Figure 3
The root name pentane signifies the presence of five carbon atoms in a chain and 3−methyl−4−isopropyl shows the presence of methyl and isopropyl group on carbon three and four. The correct name of the compound is 2,3,4−Trimethyl−hexane as the longest chain is of six carbon atoms containing three methyl groups on carbon two three and four respectively.
(d)
Interpretation: The following incorrectly named compounds are to be drawn and named correctly.
Concept introduction: Organic compounds contain carbon and hydrogen atoms with their respective functional groups. When they are named the root term, suffix and prefix are to be remembered. They are named according to the International Union of Pure and Applied Chemistry (IUPAC).
To determine: The correct name of the given compound and its structure is to be drawn.
(d)
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Answer to Problem 121AE
Answer
The correct name of the compound is 3−methyl−pent−1−yne whose structure is shown in Figure 4.
Explanation of Solution
Explanation
The correct name of the compound is 3−methyl−pent−1−yne whose structure is shown in Figure 4.
The structure of 2−ethyl−3−butyne with its correct name is,
Figure 4
The root name butyne signifies the presence of four carbon atoms with a triple bond in a chain and 2−ethyl shows the presence of ethyl group on second carbon atom. The correct name of the compound is 3−methyl−pent−1−yne because of the longest carbon chain of five carbon atoms containing a methyl group on carbon three and triple bond on carbon number one.
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Chapter 22 Solutions
Bundle: Chemistry, Loose-leaf Version, 10th + Enhanced Webassign Printed Access Card For Chemistry, Multi-term Courses
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