Which of the following compounds can undergo an E1 elimination reaction?

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Question: Which of the following compounds can undergo an E1 elimination reaction?

Options:

Correct Answer: 2-bromobutane

Solution:

2-bromobutane can undergo E1 elimination due to the stability of the carbocation formed during the reaction.

Which of the following compounds can undergo an E1 elimination reaction?

Which of the following compounds can undergo an E1 elimination reaction?

Step 1: Understand what an E1 elimination reaction is. It involves the removal of a leaving group (like bromine) and the formation of a double bond.
Step 2: Identify the compound in question, which is 2-bromobutane.
Step 3: Recognize that for an E1 reaction to occur, a stable carbocation must be formed after the leaving group departs.
Step 4: Determine the structure of 2-bromobutane. It has a bromine atom attached to the second carbon of a four-carbon chain.
Step 5: When bromine leaves, a carbocation is formed at the second carbon. Check if this carbocation is stable.
Step 6: Realize that the carbocation is secondary, which is relatively stable compared to primary or methyl carbocations.
Step 7: Conclude that since 2-bromobutane can form a stable secondary carbocation, it can undergo an E1 elimination reaction.

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