Organic And Biological Chemistry
7th Edition
ISBN: 9781305081079
Author: STOKER, H. Stephen (howard Stephen)
Publisher: Cengage Learning,
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Chapter 3, Problem 3.139EP
(a)
Interpretation Introduction
Interpretation:
IUPAC name for the given compound has to be assigned.
Concept Introduction:
IUPAC rules for naming thioalcohols that contain single thiol group:
- • Longest carbon chain has to be identified that contains thiol group also. The chain name is obtained by adding the suffix “-thiol”. If the compound contains an unsaturated bond, then the respective name has to be changed with regard to
alkane . - • The numbering has to be given so that the thiol group gets the least numbering.
- • Name and location of any other substituent present in the chain has to be identified.
- • If in a ring the thiol group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
IUPAC rules for naming thioalcohols that contain more than one thiol group:
- • The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of thiol groups that is present.
(a)
Expert Solution
Answer to Problem 3.139EP
IUPAC name for the given compound is 1-pentanethiol.
Explanation of Solution
Given structure of compound is
First step is to identify the longest continuous carbon chain. In the given structure, it is found that the longest carbon chain is five carbon chain. Hence, the parent alkane is pentane.
The suffix -thiol is added to the parent alkane name. This gives the name as pentanethiol.
Next step is to number the carbon atoms so that the thiol
Conclusion
IUPAC name for the given compound is assigned.
(b)
Interpretation Introduction
Interpretation:
IUPAC name for the given compound has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- • Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”. If the compound contains a unsaturated bond, then the respective name has to be changed with regard to alkane.
- • The numbering has to be given so that the hydroxyl group gets the least numbering.
- • Name and location of any other substituent present in the chain has to be identified.
- • If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- • Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
- • If the compound contains bulky groups on same side of the double bond, then it is a cis isomer and if the bulkyl groups are present on opposite side of the double bond, then it is a trans isomer.
- • In case of cycloalkane compounds, if the substitutions are present on same side of the ring of carbon atoms, it is a cis isomer. If the substitutions are present above and below the ring, then it is a trans isomer.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- • The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
(b)
Expert Solution
Answer to Problem 3.139EP
IUPAC name for the given compound is 1-pentanol.
Explanation of Solution
Given structure of compound is
The longest continuous carbon chain with the hydroxyl group is found to be five carbon chain. Therefore, the parent alkane is pentane. As a hydroxyl group is present the name of the alcohol can be given as pentanol.
The numbering has to be given so that the hydroxyl group gets the least numbering. In this case, the hydroxyl group is present in the first carbon atom. Therefore, the IUPAC name can be given as 1-pentanol.
Conclusion
IUPAC name for the given compound is assigned.
(c)
Interpretation Introduction
Interpretation:
IUPAC name for the given compound has to be assigned.
Concept Introduction:
IUPAC rules for naming thioalcohols that contain single thiol group:
- • Longest carbon chain has to be identified that contains thiol group also. The chain name is obtained by adding the suffix “-thiol”. If the compound contains an unsaturated bond, then the respective name has to be changed with regard to alkane.
- • The numbering has to be given so that the thiol group gets the least numbering.
- • Name and location of any other substituent present in the chain has to be identified.
- • If in a ring the thiol group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
IUPAC rules for naming thioalcohols that contain more than one thiol group:
- • The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of thiol groups that is present.
(c)
Expert Solution
Answer to Problem 3.139EP
IUPAC name for the given compound is 3-methyl-2-butanethiol.
Explanation of Solution
Given structure of compound is shown below,
First step is to identify the longest continuous carbon chain. In the given structure, it is found that the longest carbon chain is four carbon chain. Hence, the parent alkane is butane.
The suffix -thiol is added to the parent alkane name. This gives the name as butanethiol.
Next step is to number the carbon atoms so that the thiol functional group gets the least numbering. In this case, it is in second carbon atom. Methyl group is present as substituent in the third carbon atom. Therefore, the IUPAC name of the given compound is 3-methyl-2-butanethiol.
Conclusion
IUPAC name for the given compound is assigned.
(d)
Interpretation Introduction
Interpretation:
IUPAC name for the given compound has to be assigned.
Concept Introduction:
IUPAC rules for naming alcohols that contain single hydroxyl group:
- • Longest carbon chain has to be identified that contains hydroxyl group also. The chain name is obtained by replacing the letter “-e” in alkane with “-ol”. If the compound contains a unsaturated bond, then the respective name has to be changed with regard to alkane.
- • The numbering has to be given so that the hydroxyl group gets the least numbering.
- • Name and location of any other substituent present in the chain has to be identified.
- • If in a ring the hydroxyl group is present, then that carbon is numbered 1 and the numbering then proceeds counterclockwise or clockwise in a way that substituents present if any gets the least numbering.
- • Hydroxyl group as a substituent in a molecule is named as hydroxy group rather than hydroxyl group.
- • If the compound contains bulky groups on same side of the double bond, then it is a cis isomer and if the bulkyl groups are present on opposite side of the double bond, then it is a trans isomer.
- • In case of cycloalkane compounds, if the substitutions are present on same side of the ring of carbon atoms, it is a cis isomer. If the substitutions are present above and below the ring, then it is a trans isomer.
IUPAC rules for naming alcohols that contain more than one hydroxyl group:
- • The same rules said above is followed but the prefix di-, tri-, tetra etc is added corresponding to the number of hydroxyl groups that is present.
(d)
Expert Solution
Answer to Problem 3.139EP
IUPAC name for the given compound is 3-methyl-2-butanol.
Explanation of Solution
Given structure of compound is shown below,
First step is to identify the longest continuous carbon chain. In the given structure, it is found that the longest carbon chain is four carbon chain. Hence, the parent alkane is butane.
The suffix -ol is added to the parent alkane name by replacing the suffix “–e”. This gives the name as butanol.
Next step is to number the carbon atoms so that the hydroxyl functional group gets the least numbering. In this case, it is in second carbon atom. Methyl group is present as substituent in the third carbon atom. Therefore, the IUPAC name of the given compound is 3-methyl-2-butanol.
Conclusion
IUPAC name for the given compound is assigned.
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Can the target compound at right be efficiently synthesized in good yield from the unsubstituted benzene at left?
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Chapter 3 Solutions
Organic And Biological Chemistry
Ch. 3.1 - Prob. 1QQCh. 3.1 - Prob. 2QQCh. 3.2 - Prob. 1QQCh. 3.2 - Prob. 2QQCh. 3.2 - Prob. 3QQCh. 3.3 - Prob. 1QQCh. 3.3 - Prob. 2QQCh. 3.3 - Prob. 3QQCh. 3.3 - Prob. 4QQCh. 3.4 - Prob. 1QQ
Ch. 3.4 - Prob. 2QQCh. 3.4 - Prob. 3QQCh. 3.5 - Prob. 1QQCh. 3.5 - Prob. 2QQCh. 3.5 - Prob. 3QQCh. 3.5 - Prob. 4QQCh. 3.6 - Prob. 1QQCh. 3.6 - Prob. 2QQCh. 3.6 - Prob. 3QQCh. 3.7 - Prob. 1QQCh. 3.7 - Prob. 2QQCh. 3.8 - Prob. 1QQCh. 3.8 - Prob. 2QQCh. 3.9 - Prob. 1QQCh. 3.9 - Prob. 2QQCh. 3.9 - Prob. 3QQCh. 3.9 - Prob. 4QQCh. 3.9 - Prob. 5QQCh. 3.9 - Prob. 6QQCh. 3.10 - Prob. 1QQCh. 3.10 - Prob. 2QQCh. 3.11 - Prob. 1QQCh. 3.11 - Prob. 2QQCh. 3.11 - Prob. 3QQCh. 3.12 - Prob. 1QQCh. 3.12 - Prob. 2QQCh. 3.13 - Prob. 1QQCh. 3.13 - Prob. 2QQCh. 3.13 - Prob. 3QQCh. 3.14 - Prob. 1QQCh. 3.14 - Prob. 2QQCh. 3.14 - Prob. 3QQCh. 3.15 - Prob. 1QQCh. 3.15 - Prob. 2QQCh. 3.15 - Prob. 3QQCh. 3.15 - Prob. 4QQCh. 3.16 - Prob. 1QQCh. 3.16 - Prob. 2QQCh. 3.17 - Prob. 1QQCh. 3.17 - Prob. 2QQCh. 3.17 - Prob. 3QQCh. 3.18 - Prob. 1QQCh. 3.18 - Prob. 2QQCh. 3.18 - Prob. 3QQCh. 3.19 - Prob. 1QQCh. 3.19 - Prob. 2QQCh. 3.20 - Prob. 1QQCh. 3.20 - Prob. 2QQCh. 3.20 - Prob. 3QQCh. 3.20 - Prob. 4QQCh. 3.20 - Prob. 5QQCh. 3.21 - Prob. 1QQCh. 3.21 - Prob. 2QQCh. 3.21 - Prob. 3QQCh. 3.21 - Prob. 4QQCh. 3.21 - Prob. 5QQCh. 3 - Prob. 3.1EPCh. 3 - Indicate whether or not each of the following...Ch. 3 - Prob. 3.3EPCh. 3 - Prob. 3.4EPCh. 3 - Prob. 3.5EPCh. 3 - Prob. 3.6EPCh. 3 - Prob. 3.7EPCh. 3 - Prob. 3.8EPCh. 3 - Prob. 3.9EPCh. 3 - Prob. 3.10EPCh. 3 - Write a condensed structural formula for each of...Ch. 3 - Write a condensed structural formula for each of...Ch. 3 - Prob. 3.13EPCh. 3 - Prob. 3.14EPCh. 3 - Prob. 3.15EPCh. 3 - Prob. 3.16EPCh. 3 - Prob. 3.17EPCh. 3 - Prob. 3.18EPCh. 3 - Prob. 3.19EPCh. 3 - Prob. 3.20EPCh. 3 - Prob. 3.21EPCh. 3 - Prob. 3.22EPCh. 3 - Prob. 3.23EPCh. 3 - Prob. 3.24EPCh. 3 - Prob. 3.25EPCh. 3 - Prob. 3.26EPCh. 3 - Prob. 3.27EPCh. 3 - Prob. 3.28EPCh. 3 - Prob. 3.29EPCh. 3 - Prob. 3.30EPCh. 3 - Give the IUPAC name of the alcohol that fits each...Ch. 3 - Prob. 3.32EPCh. 3 - Prob. 3.33EPCh. 3 - Prob. 3.34EPCh. 3 - Prob. 3.35EPCh. 3 - Prob. 3.36EPCh. 3 - Prob. 3.37EPCh. 3 - Which member of each of the following pairs of...Ch. 3 - Prob. 3.39EPCh. 3 - Which member of each of the following pairs of...Ch. 3 - Determine the maximum number of hydrogen bonds...Ch. 3 - Prob. 3.42EPCh. 3 - Prob. 3.43EPCh. 3 - Prob. 3.44EPCh. 3 - Prob. 3.45EPCh. 3 - Prob. 3.46EPCh. 3 - Classify each of the following alcohols as a...Ch. 3 - Classify each of the following alcohols as a...Ch. 3 - Classify each of the following alcohols as a...Ch. 3 - Classify each of the following alcohols as a...Ch. 3 - Prob. 3.51EPCh. 3 - Prob. 3.52EPCh. 3 - Prob. 3.53EPCh. 3 - Prob. 3.54EPCh. 3 - Prob. 3.55EPCh. 3 - Prob. 3.56EPCh. 3 - Prob. 3.57EPCh. 3 - Prob. 3.58EPCh. 3 - Prob. 3.59EPCh. 3 - Prob. 3.60EPCh. 3 - The alcohol 2,2-dimethyl-1-butanol cannot be...Ch. 3 - Prob. 3.62EPCh. 3 - Prob. 3.63EPCh. 3 - Prob. 3.64EPCh. 3 - Prob. 3.65EPCh. 3 - Prob. 3.66EPCh. 3 - Prob. 3.67EPCh. 3 - Prob. 3.68EPCh. 3 - Prob. 3.69EPCh. 3 - Prob. 3.70EPCh. 3 - Prob. 3.71EPCh. 3 - Prob. 3.72EPCh. 3 - Prob. 3.73EPCh. 3 - Prob. 3.74EPCh. 3 - Prob. 3.75EPCh. 3 - Prob. 3.76EPCh. 3 - Prob. 3.77EPCh. 3 - Prob. 3.78EPCh. 3 - Prob. 3.79EPCh. 3 - Prob. 3.80EPCh. 3 - Prob. 3.81EPCh. 3 - Prob. 3.82EPCh. 3 - Prob. 3.83EPCh. 3 - Prob. 3.84EPCh. 3 - Prob. 3.85EPCh. 3 - Prob. 3.86EPCh. 3 - Prob. 3.87EPCh. 3 - Prob. 3.88EPCh. 3 - Prob. 3.89EPCh. 3 - Prob. 3.90EPCh. 3 - Classify each of the following compounds as an...Ch. 3 - Prob. 3.92EPCh. 3 - Draw or write the following for the simplest ether...Ch. 3 - Draw or write the following for the simplest ether...Ch. 3 - Prob. 3.95EPCh. 3 - Prob. 3.96EPCh. 3 - Assign a common name to each of the ethers in...Ch. 3 - Prob. 3.98EPCh. 3 - Prob. 3.99EPCh. 3 - Prob. 3.100EPCh. 3 - Prob. 3.101EPCh. 3 - Prob. 3.102EPCh. 3 - Prob. 3.103EPCh. 3 - Prob. 3.104EPCh. 3 - Prob. 3.105EPCh. 3 - Prob. 3.106EPCh. 3 - Prob. 3.107EPCh. 3 - Prob. 3.108EPCh. 3 - Prob. 3.109EPCh. 3 - Prob. 3.110EPCh. 3 - Prob. 3.111EPCh. 3 - Prob. 3.112EPCh. 3 - Prob. 3.113EPCh. 3 - Prob. 3.114EPCh. 3 - How many isomeric ethers exist when the R groups...Ch. 3 - Prob. 3.116EPCh. 3 - Prob. 3.117EPCh. 3 - Prob. 3.118EPCh. 3 - Prob. 3.119EPCh. 3 - Prob. 3.120EPCh. 3 - Dimethyl ether and ethanol have the same molecular...Ch. 3 - Prob. 3.122EPCh. 3 - Prob. 3.123EPCh. 3 - Prob. 3.124EPCh. 3 - Prob. 3.125EPCh. 3 - Prob. 3.126EPCh. 3 - Classify each of the following molecular...Ch. 3 - Classify each of the following molecular...Ch. 3 - Prob. 3.129EPCh. 3 - Prob. 3.130EPCh. 3 - Prob. 3.131EPCh. 3 - Draw a condensed structural formula for each of...Ch. 3 - Prob. 3.133EPCh. 3 - Prob. 3.134EPCh. 3 - Prob. 3.135EPCh. 3 - Write the formulas for the sulfur-containing...Ch. 3 - Prob. 3.137EPCh. 3 - For each of the following pairs of compounds,...Ch. 3 - Prob. 3.139EPCh. 3 - Prob. 3.140EPCh. 3 - Prob. 3.141EPCh. 3 - Prob. 3.142EPCh. 3 - Prob. 3.143EPCh. 3 - Prob. 3.144EPCh. 3 - Prob. 3.145EPCh. 3 - Prob. 3.146EP
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