(a)
Interpretation:
The complete mechanism of the given reaction is to be determined.
Concept introduction:
Diels–Alder reactions are stereospecific: the stereochemistry of the product is identified by the stereochemistry of the reactant. The Diels-Alder reaction is a significant and commonly used technique for making six-membered rings. The reactant as conjugated diene and a double or triple bond termed the dienophile. This is cycloaddition reaction therefore the dienophile has two and the diene has four pi-electrons that shift position in the reaction.
(b)
Interpretation:
The complete mechanism of the given reaction is to be determined.
Concept introduction:
Diels–Alder reactions are stereospecific: the stereochemistry of the product is identified by the stereochemistry of the reactant. The Diels-Alder reaction is a significant and commonly used technique for making six-membered rings. The reactant as conjugated diene and a double or triple bond termed the dienophile. This is cycloaddition reaction therefore the dienophile has two and the diene has four pi-electrons that shift position in the reaction.
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