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Concept explainers
Draw the structure for each of the following:
- a. isobutyraldehyde
- b. diisopentyl
ketone - c. 3-methylcyclohexanone
- d. 2,4-pentanedione
- e. 4-bromo-3-heptanone
- f. 4-bromohexanal
(a)
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Interpretation:
The structure of Isobutyraldehyde has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of Isobutyraldehyde is given below:
Explanation of Solution
The compound has aldehyde group that is attached to the isobutyl group.
The structure of isobutyraldehyde is as follows.
(b)
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Interpretation:
The structure of diisopentyl ketone has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of diisopentyl ketone is given below:
Explanation of Solution
The compound has ketone functional group. Two isopentyl groups are attached to the keto group.
The structure of diisopentyl ketone is as follows.
(c)
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Interpretation:
The structure of 3-methylcyclohexanone has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of 3-methylcyclohexanoneis given below:
Explanation of Solution
The compound has ketone functional and group and it is cyclohexanone that has one methyl group at 3rd position of the cyclic ring.
The structure of 3-methyl cyclohexanone is as follows.
(d)
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Interpretation:
The structure of 2,4-pentanedione has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of 2,4-pentanedione is given below:
Explanation of Solution
The compound has two keto functional groups and these are attached to the pentane carbon chain.
The structure of 2,4-pentanedione is as follows:
(e)
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Interpretation:
The structure of 4-bromo-3-heptanone has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of 4-bromo-3-heptanone is given below:
Explanation of Solution
The compound has keto functional group and it is attached to the heptane carbon chain. At the 4th position of the carbon chain has bromine attachment.
(f)
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Interpretation:
The structure of 4-bromohexenal has to be drawn.
Concept Introduction:
For any given organic compound name, the corresponding structure can be analysed and drawn by analysing or identifying the following aspects of the name:
- Parent chain.
- Functional group.
- Position of the functional group on the parent chain.
- Alkyl substituent.
- Position of the alkyl substituent on the parent chain.
Answer to Problem 28P
The structure of 4-bromohexenal is given below:
Explanation of Solution
The compound has bromine functional group at the 4th position from the aldehyde functional group on the hexane parent chain.
The structure of 4-bromohexenal is as follows:
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Chapter 12 Solutions
Essential Organic Chemistry (3rd Edition)
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