Which of the Following Is Not True About the Wittig

question 95

Multiple Choice

Which of the following is not true about the Wittig reaction?

• A) triphenylphosphine reacts with 2° alkyl bromides by an S_N2 reaction to give an alkyltriphenylphosphonium bromide
• B) alkyltriphenylphosphonium bromides are deprotonated by strong bases to give a phosphonium ylide
• C) phosphonium ylids are nucleophilic
• D) the product of the Wittig reaction is an alkyne

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