identify-the-best-pair-of-phosphonium-ylide-derived-from-an-alkyl-halide-and-car

Question

Identify the best pair of phosphonium ylide (derived from an alkyl halide) and carbonyl compound for synthesizing the specified compound via the Wittig reaction.

Chemical structure of a compound related to imine vs enamine topic.

Accepted Answer

Wittig reaction setup with phosphonium ylide and carbonyl compound.

Answer

Wittig reaction setup with carbonyl compound and phosphonium ylide.

Answer

Wittig reaction setup with carbonyl compound and another phosphonium ylide.

Answer

The compound cannot be synthesized via the Wittig reaction.

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Identify the best pair of phosphonium ylide (derived from an alkyl halide) and carbonyl compound for synthesizing the specified compound via the Wittig reaction.