a)
Interpretation:
Whether the compound shown will be a good dienophile or not is to be predicted.
Concept introduction:
In Diels-Alder reaction, a dienophile reacts with a diene to yield a cyclic adduct. The reaction takes place through 1,4 addition of the dienophile into the diene through a cyclic transition state. These reactions occur rapidly with dienophiles having electron withdrawing substituent groups in conjugation with the double bond.
To predict:
Whether the compound shown will be a good dienophile or not.
b)
Interpretation:
Whether the compound shown will be a good dienophile or not is to be predicted.
Concept introduction:
In Diels-Alder reaction, a dienophile reacts with a diene to yield a cyclic adduct. The reaction takes place through 1,4 addition of the dienophile into the diene through a cyclic transition state. These reactions occur rapidly with dienophiles having electron withdrawing substituent groups in conjugation with the double bond.
To predict:
Whether the compound shown will be a good dienophile or not.
c)
Interpretation:
Whether the compound shown will be a good dienophile or not is to be predicted.
Concept introduction:
In Diels-Alder reaction, a dienophile reacts with a diene to yield a cyclic adduct. The reaction takes place through 1,4 addition of the dienophile into the diene through a cyclic transition state. These reactions occur rapidly with dienophiles having electron withdrawing substituent groups in conjugation with the double bond.
To predict:
Whether the compound shown will be a good dienophile or not.
d)
Interpretation:
Whether the compound shown will be a good dienophile or not is to be predicted.
Concept introduction:
In Diels-Alder reaction, a dienophile reacts with a diene to yield a cyclic adduct. The reaction takes place through 1,4 addition of the dienophile into the diene through a cyclic transition state. These reactions occur rapidly with dienophiles having electron withdrawing substituent groups in conjugation with the double bond.
To predict:
Whether the compound shown will be a good dienophile or not.
e)
Interpretation:
Whether the compound shown will be a good dienophile or not is to be predicted.
Concept introduction:
In Diels-Alder reaction, a dienophile reacts with a diene to yield a cyclic adduct. The reaction takes place through 1,4 addition of the dienophile into the diene through a cyclic transition state. These reactions occur rapidly with dienophiles having electron withdrawing substituent groups in conjugation with the double bond.
To predict:
Whether the compound shown will be a good dienophile or not.
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Chapter 14 Solutions
Organic Chemistry
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- The bicyclic alkene P can be prepared by thermal electrocyclic ring closure from cyclodecadiene Q or by photochemical electrocyclic ring closure from cyclodecadiene R. Draw the structures of Q and R, and indicate the stereochemistry of the process by which each reaction occurs.arrow_forwardGive the molecule that undergoes an intramolecular Diels- Alder cycloaddition to produce the given cycloadduct product.racemic H .OCH 3 racemicarrow_forwardDetermine the double bond stereochemistry (E or Z) for the following molecules. F. H3C C A CH3 F. H B D Brarrow_forward