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Organic Chemistry 2

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Moderate

Aldehyde Transformations IX

ORGO2-$BGHGH

What is the indicated product at the end of the following reaction sequence?

Hint: The role of triphenylphosphine in Step 1 is that of a nucleophile to afford an ionic compound (cationic organic compound with bromide counterion).

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A

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B

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C

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D

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