Multiple Choice
Which of the following reactions is an example of a nucleophilic substitution reaction?
3. Acids and Bases
Organic Chemistry Reactions
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Which of the following statements about the Diels-Alder reaction is false?
A
The Diels-Alder reaction typically forms a six-membered ring.
B
The Diels-Alder reaction is a [4+2] cycloaddition reaction.
C
The reaction involves a diene and a dienophile.
D
The reaction requires a strong acid catalyst to proceed.
Verified step by step guidance1
Understand the Diels-Alder reaction: It is a [4+2] cycloaddition reaction, meaning it involves the interaction of a conjugated diene (4 π-electrons) and a dienophile (2 π-electrons) to form a six-membered ring.
Recognize the typical characteristics of the Diels-Alder reaction: It is a pericyclic reaction that proceeds through a concerted mechanism, forming a cyclic product without the need for a catalyst.
Identify the role of the diene and dienophile: The diene must be in the s-cis conformation to react, and the dienophile typically contains electron-withdrawing groups to facilitate the reaction.
Evaluate the statement about the requirement of a strong acid catalyst: The Diels-Alder reaction is known to proceed without the need for any catalyst, especially not a strong acid, as it is a thermally allowed process.
Conclude which statement is false: Based on the understanding that the Diels-Alder reaction does not require a catalyst, the statement 'The reaction requires a strong acid catalyst to proceed' is false.
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