(a)
Interpretation:
The mechanism and major product for the given Diels-Alder reaction is to be drawn.
Concept introduction:
The Diels–Alder reaction joins a conjugated diene and a dienophile (either an
![Check Mark](/static/check-mark.png)
Answer to Problem 24.44P
The mechanism and major product for the given Diels-Alder reaction is:
The
Explanation of Solution
The given reaction is:
Here the diene is in trans configuration. For a Diels–Alder reaction to take place, the diene must be able to attain the
Each end carbon in the diene becomes a chiral center, noted with an asterisk. The
The mechanism and major product for the given Diels-Alder reaction is drawn from the structures of given reactants with stereochemistry.
(b)
Interpretation:
The mechanism and major product for the given Diels-Alder reaction is to be drawn.
Concept introduction:
The Diels–Alder reaction joins a conjugated diene and a dienophile (either an alkene or an alkyne) via the formation of two new
![Check Mark](/static/check-mark.png)
Answer to Problem 24.44P
The mechanism and major product for the given Diels-Alder reaction is:
The
Explanation of Solution
The given reaction is:
Here the cycloaddition, Diels-Alder reaction forms the six-membered ring product as:
In the above reaction, two carbons in the dienophile become chiral centers, noted with an asterisk.
The
The mechanism and major product for the given Diels-Alder reaction is drawn from the structures of given reactants with stereochemistry.
(c)
Interpretation:
The mechanism and major product for the given Diels-Alder reaction is to be drawn.
Concept introduction:
The Diels–Alder reaction joins a conjugated diene and a dienophile (either an alkene or an alkyne) via the formation of two new
![Check Mark](/static/check-mark.png)
Answer to Problem 24.44P
The mechanism and major product for the given Diels-Alder reaction is:
The
Explanation of Solution
The given reaction is:
Here the cycloaddition, Diels-Alder reaction forms the six-membered ring product as:
The
The mechanism and major product for the given Diels-Alder reaction is drawn from the structures of given reactants with stereochemistry.
(d)
Interpretation:
The mechanism and major product for the given Diels-Alder reaction is to be drawn.
Concept introduction:
The Diels–Alder reaction joins a conjugated diene and a dienophile (either an alkene or an alkyne) via the formation of two new
Diels–Alder reactions tend to favor an endo product over an exo product
![Check Mark](/static/check-mark.png)
Answer to Problem 24.44P
The mechanism and major product for the given Diels-Alder reaction is:
Diels–Alder reactions tend to favor an endo product over an exo product:
Explanation of Solution
The given reaction is:
Here the cycloaddition, Diels-Alder reaction forms the bicyclic compound as product:
Here, it is noticed that two carbons of the diene and two carbons of the dienophile become chiral centers, noted with an asterisk.
The
The mechanism and major product for the given Diels-Alder reaction is drawn from the structures of given reactants with stereochemistry.
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