Concept explainers
(a)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(a)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via dashed bond thus, it is away from us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Since, it is anticlockwise, the configuration will be S.
(b)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(b)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via dashed bond thus, it is away from us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Since, it is clockwise, the configuration will be R.
(c)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(c)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via dashed bond thus, it is away from us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Since, it is clockwise, the configuration will be R.
(d)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(d)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via dashed bond thus, it is away from us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Since, it is anticlockwise, the configuration will be S.
(e)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(e)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via wedge bond thus, it is towards us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Here, the direction is clockwise thus, the configuration is R.
(f)
Interpretation: The stereocenters present in the molecule needs to be labelled as R or S.
Concept Introduction:
The Cahn-Ingold-Prelog system is a set of rules that allows us to unambiguously define the stereochemical configuration of any stereocenter, using the designations 'R ' (from the Latin rectus, meaning right-handed) or ' S ' (from the Latin sinister, meaning left-handed).
In the first step, priority is given to 4 different groups attached to the stereocenter. The direction of 4th priority group should be away from the observer. In the second step, direction from 1 to 3 priority group is determined. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
(f)

Explanation of Solution
The given structure can be represented as follows:
Here, stereocenter and priority in groups is labelled as follows:
Here, the lowest priority group is H atom and it is bonded to C atom via wedge bond thus, it is towards us.
Now, determine the direction from 1 to 3 priority group. If the direction is clockwise, the configuration will be R and if it is anticlockwise, the configuration will be S.
Here, the direction is represented as follows:
Here, the direction is clockwise thus, the configuration is R.
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Chapter 14 Solutions
Introduction to General, Organic and Biochemistry
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- Redraw the tripeptide with or without its acidic hydrogensto demonstrate where the total charge of -2 comes from: *see imagearrow_forward2. Consider the data below to answer the following questions. Cyanohydrins are important intermediates in the synthesis of α-hydroxycarboxylic acids from ketones and aldehydes. The nitrile functional group can be hydrolyzed by aqueous acid to yield a carboxylic acid. Nitriles can also be hydrolyzed to carboxylic acids using aqueous base. Unfortunately, when a cyanohydrin is treated with aqueous base the original carbonyl compound is isolated. OH CH-COOH 0 HO CN C H30* C. H H HC N NaOH H₂O C=O 0 cyanohydrin H + NaCN + H₂Oarrow_forwardAssign all integrated peaksarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
