i) The following compound 6 is a fragment that was synthesized from 4 via an epoxide 5.
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i) The following compound 6 is a fragment that was synthesized from 4 via an epoxide 5. What reagents could achieve the reaction to form 5, and explain the observed stereoselectivity? (2 marks)
ii) The formation of 6 from 5 is achieved using hydrazine (H2NNH2) in acetic acid. Like the Shapiro reaction, the reaction goes through a vinyl anion intermediate. Propose a mechanism for this reaction. (4 marks) (You may use R groups to abbreviate if necessary)
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