Coupling Reactions with Vinyl Halides Are Stereospecific

question 34

Multiple Choice

Coupling reactions with vinyl halides are stereospecific.Which choice below best describes the expected product when trans-1-bromo-1-hexene reacts with (CH₃) ₂CuLi?

• A)The reaction will only yield a trans-alkene.
• B)The reaction will only yield a cis-alkene.
• C)The reaction will only yield one enantiomeric product with R configuration.
• D)The reaction will only yield one enantiomeric product with S configuration.

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