Multiple Choice
Which of the following is not a typical reaction mechanism in organic chemistry?
3. Acids and Bases
Organic Chemistry Reactions
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Which statement is not true about the Diels-Alder reaction in organic chemistry?
A
It requires a catalyst to proceed.
B
It is a [4+2] cycloaddition reaction.
C
It involves a conjugated diene and a dienophile.
D
It typically forms a six-membered ring.
Verified step by step guidance1
Understand the Diels-Alder reaction: It is a type of cycloaddition reaction where a conjugated diene reacts with a dienophile to form a cyclic compound.
Recognize the [4+2] cycloaddition: The Diels-Alder reaction is characterized by the combination of four π electrons from the diene and two π electrons from the dienophile, forming a six-membered ring.
Identify the components: The reaction involves a conjugated diene, which has alternating double bonds, and a dienophile, which is typically an alkene or alkyne that can react with the diene.
Consider the typical outcome: The Diels-Alder reaction usually results in the formation of a six-membered ring, which is a key feature of this reaction.
Evaluate the need for a catalyst: The Diels-Alder reaction is unique because it does not require a catalyst to proceed, making it a concerted reaction that occurs through a single transition state.
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