Concept explainers
(a)
Interpretation:
The principal organic product that is obtained when
Concept introduction:
The reaction in which an atom of
Answer to Problem 26.26AP
The principal organic product that is obtained when
Explanation of Solution
The reaction of
Figure 1
In the above reaction, the second position of
Therefore, the product formed by the above reaction is
The principal organic product,
(b)
Interpretation:
The principal organic product that is obtained when
Concept introduction:
The reaction in which an atom of aromatic system is replaced by an electrophile is known as electrophilic aromatic substitution reaction. The compound, acetic anhydride behaves as a acetylating compound in the presence of
Answer to Problem 26.26AP
The principal organic product that is obtained when
Explanation of Solution
The reaction of
Figure 2
In the above reaction, the second position of
Therefore, the product formed by the above reaction is
The principal organic product,
(c)
Interpretation:
The incomplete reaction between diene and dienophile is to be completed with the reasonable products. The reason corresponding to the formation of the correct product is to be explained.
Concept introduction:
Diels Alder reaction is the
Answer to Problem 26.26AP
The complete reaction is shown below.
Explanation of Solution
The given incomplete reaction is shown below.
Figure 3
In the above incomplete reaction, the given
Figure 4
Therefore, one product is obtained from the above shown Diels Alder reaction.
The complete reaction corresponding to the incomplete reaction between diene and dienophile is shown in Figure 4.
(d)
Interpretation:
The incomplete reaction between an alkene and benzoquinone is to be completed with the reasonable products. The reason corresponding to the formation of the correct product is to be explained.
Concept introduction:
Diels Alder reaction is the
Answer to Problem 26.26AP
The complete reaction is shown below.
Explanation of Solution
The given incomplete reaction is shown below.
Figure 5
In the above incomplete reaction, the given two equivalents of alkene behaves as a diene and undergoes Diels Alder reaction with benzoquinone which behaves as a dienophile in the presence of heat to form two products as shown below.
Figure 6
Therefore, two products are obtained from the above shown Diels Alder reaction. The second product is the major one because of the less van der Waals repulsion present in between two double bonds which are exocyclic.
The complete reaction corresponding to the incomplete reaction between diene and dienophile is shown in Figure 6.
(e)
Interpretation:
The incomplete reaction between a diene and a dienophile is to be completed with the reasonable products. The reason corresponding to the formation of the correct product is to be explained.
Concept introduction:
Diels Alder reaction is the
Answer to Problem 26.26AP
The complete reaction is shown below.
Explanation of Solution
The given incomplete reaction is shown below.
Figure 7
Only the
Figure 8
The above reaction does not form any product because the
Therefore, no product is formed in the above shown reaction.
There is no formation of the product takes place in the given reaction.
(f)
Interpretation:
The incomplete reaction between a diene and a dienophile is to be completed with the reasonable products. The reason corresponding to the formation of the correct product is to be explained.
Concept introduction:
Diels Alder reaction is the
Answer to Problem 26.26AP
The complete reaction is shown below.
Explanation of Solution
The given incomplete reaction is shown below.
Figure 9
In the above incomplete reaction, the intramolecular Diels Alder reaction takes place in the presence of heat to form two products as shown below.
Figure 10
In the above reaction, diene and dienophile are present in the same compound. Therefore, two products are obtained from the above shown Diels Alder reaction. Therefore, the shifting of bonds takes place within the molecule to form a single product.
The complete reaction corresponding to the incomplete reaction between diene and dienophile is shown in Figure 10.
(g)
Interpretation:
The incomplete reaction between nickel choride and
Concept introduction:
Metallocene compounds are composed of an electropositive metal ions specially
Answer to Problem 26.26AP
The complete reaction is shown below.
Explanation of Solution
The given incomplete reaction is shown below.
Figure 11
In the above incomplete reaction, the nickel chloride reacts with
Figure 12
Therefore, the reaction between nickel chloride and
The complete reaction corresponding to the incomplete reaction between nickel choride and
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Chapter 26 Solutions
ORGANIC CHEMISTRY (LL)+ SAPLING ACC >BI
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- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning