Concept explainers
(a)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Trivial names such as iso and neo, sec, tert are used to indicate the alkyl groups and their structure as shown below:
The root names of ketones are derived from those of the parent
Answer to Problem E.23P
The correct IUPAC name for the given trivial name
Explanation of Solution
The name for the given molecule is
The prefix di represents that there are two vinyl groups attached to the carbonyl carbon atom in ketone. Thus, the structure for
While writing the IUPAC name for ketones, the longest continuous carbon chain containing the ketone functional group is to be determined, and it is numbered such that the carbonyl carbon receives the lowest possible numbering. Using this rule, the numbering for the above structure is
The longest continuous carbon chain has five carbon atoms, and the carbonyl carbon is at number 3. Thus, the root name for this will be
The structure of the molecule is drawn and the correct IUPAC name is written for the given trivial name.
(b)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Ketones consist of two alkyl or aryl groups attached to a carbonyl group, and their trivial names consist of identifying the alkyl or aryl groups and listing them both before the word ketone. Alkyl groups can be alkenes, alkynes, or benzene derivatives. Some of the most common names for alkenes and alkynes are vinyl, allyl, or propargyl. Their structures are as follows:
Trivial names such as iso and neo, sec, tert are used to indicate the alkyl groups and their structure as shown below:
The root names of ketones are derived from those of the parent alkanes, defined by the longest continuous chain of carbon atoms that contains the functional group. For a ketone, drop the -e from the alkane name and add the ending one. To indicate the position of a substituent on a ketone, number the chain in the manner that gives the carbonyl carbon atom the lowest possible locator number. In cyclic ketones, it is understood that the carbonyl carbon atom is C1.
Answer to Problem E.23P
The correct IUPAC name for the given trivial name
Explanation of Solution
The name for the given molecule is
While writing the IUPAC name for ketones, the longest continuous carbon chain containing the ketone functional group is to be determined, and it is numbered such that the carbonyl carbon receives the lowest possible numbering. Using this rule, the numbering for the above structure is
The longest continuous carbon chain has four carbon atoms, and the carbonyl carbon is at number 2. Thus, the root name for this will be
The structure of the molecule is drawn, and the correct IUPAC name is written for the given trivial name.
(c)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Ketones consist of two alkyl or aryl groups attached to a carbonyl group, and their trivial names consist of identifying the alkyl or aryl groups and listing them both before the word ketone. Alkyl groups can be alkenes, alkynes, or benzene derivatives. Some of the most common names for alkenes and alkynes are vinyl, allyl, or propargyl. Their structures are as follows:
Trivial names such as iso and neo, sec, tert are used to indicate the alkyl groups and their structure as shown below:
The root names of ketones are derived from those of the parent alkanes, defined by the longest continuous chain of carbon atoms that contains the functional group. For a ketone, drop the -e from the alkane name and add the ending one. To indicate the position of a substituent on a ketone, number the chain in the manner that gives the carbonyl carbon atom the lowest possible locator number. In cyclic ketones, it is understood that the carbonyl carbon atom is C1.
Answer to Problem E.23P
The correct IUPAC name for the given trivial name
Explanation of Solution
The name for the given molecule is
While writing the IUPAC name for ketones, the longest continuous carbon chain containing the ketone functional group is to be determined, and it is numbered such that the carbonyl carbon receives the lowest possible numbering. Using this rule, the numbering for the above structure is
The longest continuous carbon chain has two carbon atoms, and the carbonyl carbon is at number 1. Thus, the root name for this will be
The structure of the molecule is drawn, and the correct IUPAC name is written for the given trivial name.
(d)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Ketones consist of two alkyl or aryl groups attached to a carbonyl group, and their trivial names consist of identifying the alkyl or aryl groups and listing them both before the word ketone. Alkyl groups can be alkenes, alkynes, or benzene derivatives. Some of the most common names for alkenes and alkynes are vinyl, allyl, or propargyl. Their structures are as follows:
Trivial names such as iso and neo, sec, tert are used to indicate the alkyl groups and their structure as shown below:
The root names of ketones are derived from those of the parent alkanes, defined by the longest continuous chain of carbon atoms that contains the functional group. For a ketone, drop the -e from the alkane name and add the ending one. To indicate the position of a substituent on a ketone, number the chain in the manner that gives the carbonyl carbon atom the lowest possible locator number. In cyclic ketones, it is understood that the carbonyl carbon atom is C1.
Answer to Problem E.23P
The correct IUPAC name for the given trivial name
Explanation of Solution
The name for the given molecule is
There is no other substituent present; thus, the structure for the compound is
While writing the IUPAC name for ketones, the longest continuous carbon chain containing the ketone functional group is to be determined, and it is numbered such that the carbonyl carbon receives the lowest possible numbering. Using this rule, the numbering for the above structure is
The longest continuous carbon chain has five carbon atoms, and the carbonyl carbon is at number 3. Thus, the root name for this will be
The structure of the molecule is drawn, and the correct IUPAC name is written for the given trivial name.
(e)
Interpretation:
The structure is to be drawn, and the correct IUPAC name for the given trivial name is to be provided.
Concept introduction:
Ketones consist of two alkyl or aryl groups attached to a carbonyl group, and their trivial names consist of identifying the alkyl or aryl groups and listing them both before the word ketone. Alkyl groups can be alkenes, alkynes, or benzene derivatives. Some of the most common names for alkenes and alkynes are vinyl, allyl, or propargyl. Their structures are as follows:
Trivial names such as iso and neo, sec, tert are used to indicate the alkyl groups and their structure as shown below:
The root names of ketones are derived from those of the parent alkanes, defined by the longest continuous chain of carbon atoms that contains the functional group. For a ketone, drop the -e from the alkane name and add the ending one. To indicate the position of a substituent on a ketone, number the chain in the manner that gives the carbonyl carbon atom the lowest possible locator number. In cyclic ketones, it is understood that the carbonyl carbon atom is C1.
Answer to Problem E.23P
The correct IUPAC name for the given trivial name
Explanation of Solution
The name for the given molecule is
There is no other substituent present; thus, the structure for the compound is
While writing the IUPAC name for ketones, the longest continuous carbon chain containing the ketone functional group is to be determined, and it is numbered such that the carbonyl carbon receives the lowest possible numbering. Using this rule, the numbering for the above structure is
The longest continuous carbon chain has four carbon atoms, and the carbonyl carbon is at number 1. Thus, the root name for this will be
The structure of the molecule is drawn, and the correct IUPAC name is written for the given trivial name.
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Chapter E Solutions
EBK GET READY FOR ORGANIC CHEMISTRY
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