Concept explainers
17-19 Write the JUPAC names for these compounds.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is heptane. Numbering is done in such a way that carbonyl carbon gets number 4.
So, the IUPAC name will be: heptanes-4-one.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest) alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is cyclopentane and methyl group is substituted at second carbon.
So, the IUPAC name will be: 2-methylcyclopentanone.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is butene. Numbering is done in such a way that aldehyde group gets smallest number.
So, the IUPAC name will be: 2-methylbut-2-enal.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest) alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is propane. Numbering is done in such a way that aldehyde group gets smallest number and −OH group on carbon number second will behave as substituent.
So, the IUPAC name will be: 2-hydroxypropanal.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest) alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest)alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is propane. Numbering is done in such a way that ketone group gets smallest number and benzene ring on carbon number first will behave as substituent.
So, the IUPAC name will be: 1-phenylpropan-2-one.

Interpretation:
The IUPAC names of the given compound should be determined.
Concept Introduction:
The group that contains carbonyl group which is attached to at least one hydrogen is said to be an aldehyde group, general representation of an aldehyde group is RCH=O or RCHO. Whereas the group that contains carbonyl group which is attached to two carbon atoms is said to be a ketone group, general representation of a ketone group is RCOR’.
In order to give the IUPAC name to the aldehyde group, the following steps are followed:
1. The parent (longest) alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -al for an aldehyde group. The carbonyl group of an aldehyde appear at the end of the carbon chain so, the numbering start with carbon having aldehyde group.
3. Name should be written in alphabetical order and other substituents are shown by the number.
In order to give the IUPAC name to the ketone group, the following steps are followed:
1. The parent (longest) alkane chain is identified.
2. The ending of the parent chain from alkane (-e) is changed to -one for a ketone group.
3. The numbering is of the chain is done in such a way that carbonyl carbon gets the smaller number.
4. Name should be written in alphabetical order and other substituents are shown by the number.
Explanation of Solution
The given structure is:
The parent chain in the given structure is hexane. Numbering is done in such a way that aldehyde group gets smallest number.
So, the IUPAC name will be: hexanedial.
Want to see more full solutions like this?
Chapter 16 Solutions
Introduction to General, Organic and Biochemistry
- Draw the molecules.arrow_forwardDraw the mechanism for the acid-catalyzed dehydration of 2-methyl-hexan-2-ol with arrows please.arrow_forward. Draw the products for addition reactions (label as major or minor) of the reaction between 2-methyl-2-butene and with following reactants : Steps to follow : A. These are addition reactions you need to break a double bond and make two products if possible. B. As of Markovnikov rule the hydrogen should go to that double bond carbon which has more hydrogen to make stable products or major product. Here is the link for additional help : https://study.com/academy/answer/predict-the-major-and-minor-products-of-2-methyl- 2-butene-with-hbr-as-an-electrophilic-addition-reaction-include-the-intermediate- reactions.html H₂C CH3 H H3C CH3 2-methyl-2-butene CH3 Same structure CH3 IENCESarrow_forward
- Draw everything on a piece of paper including every single step and each name provided using carbons less than 3 please.arrow_forwardTopics] [References] Write an acceptable IUPAC name for the compound below. (Only systematic names, not common names are accepted by this question.) Keep the information page open for feedback reference. H The IUPAC name isarrow_forward[Review Topics] [References] Write an acceptable IUPAC name for the compound below. (Only systematic names, not common names are accepted by this question.) Keep the information page open for feedback reference. The IUPAC name is Submit Answer Retry Entire Group 9 more group attempts remainingarrow_forward
- Please draw.arrow_forwardA chromatogram with ideal Gaussian bands has tR = 9.0 minutes and w1/2 = 2.0 minutes. Find the number of theoretical plates that are present, and calculate the height of each theoretical plate if the column is 10 centimeters long.arrow_forwardAn open tubular column has an inner diameter of 207 micrometers, and the thickness of the stationary phase on the inner wall is 0.50 micrometers. Unretained solute passes through in 63 seconds and a particular solute emerges at 433 seconds. Find the distribution constant for this solute and find the fraction of time spent in the stationary phase.arrow_forward
- Consider a chromatography column in which Vs= Vm/5. Find the retention factor if Kd= 3 and Kd= 30.arrow_forwardTo improve chromatographic separation, you must: Increase the number of theoretical plates on the column. Increase the height of theoretical plates on the column. Increase both the number and height of theoretical plates on the column. Increasing the flow rate of the mobile phase would Increase longitudinal diffusion Increase broadening due to mass transfer Increase broadening due to multiple paths You can improve the separation of components in gas chromatography by: Rasing the temperature of the injection port Rasing the temperature of the column isothermally Rasing the temperature of the column using temperature programming In GC, separation between two different solutes occurs because the solutes have different solubilities in the mobile phase the solutes volatilize at different rates in the injector the solutes spend different amounts of time in the stationary phasearrow_forwardplease draw and example of the following: Show the base pair connection(hydrogen bond) in DNA and RNAarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning




