Practice Problem: Conversion of trans-2-butene to cis-2-butene

Dave presents a synthesis challenge to convert trans-butene to cis-butene in three steps. He outlines a strategy involving dehalogenation, elimination reactions, and selective hydrogenation using Lindlar's catalyst. The exercise is a thought experiment to apply known reactions and strategies.

What is the main synthesis challenge discussed in the text?

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What are the two elimination reactions mentioned, and why are they necessary?

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Explain the significance of dehalogenation in the synthesis strategy.

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Describe the method used to convert an alkyne to a Z alkene.

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What role does Lindlar's catalyst play in the synthesis process?

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