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Multiple Choice
Fill in the missing reagent for the provided reaction.
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Verified step by step guidance
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Identify the type of reaction: The reaction shown is a Friedel-Crafts alkylation, which involves the introduction of an alkyl group into an aromatic ring using a Lewis acid catalyst.
Determine the structure of the product: The product is a benzene ring attached to a cyclopentyl group. This indicates that the alkyl group introduced is a cyclopentyl group.
Identify the missing reagent: In Friedel-Crafts alkylation, the alkyl group is typically introduced using an alkyl halide. The missing reagent should be a cyclopentyl halide.
Analyze the provided images: The images show different cyclopentyl halides. The correct reagent should have a bromine atom attached to the carbon that will form the bond with the benzene ring.
Select the correct cyclopentyl halide: The image with the bromine atom directly attached to the cyclopentyl group (the last image) is the correct reagent for this reaction.