What Is the Role of PCl₃ in the Following Reaction

question 29

Multiple Choice

What is the role of PCl₃ in the following reaction?

• A)It converts the carboxylic acid to an enolizable acid chloride.
• B)It acts as a base and deprotonates the α carbon.
• C)It converts the carboxylic acid to an acid bromide.
• D)It activates Br₂ and forms a better nucleophile.
• E)It increases the rate of the reaction.

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