The tosylate of (2R,3S)-3-phenyl-2-butanol undergoes E2 elimination on treatment with sodium ethoxide to yield (Z)-2-phenyl-2-butene. Choose the correct Newman projections required for transition state of the reaction.
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Step 1: Identify the structure of (2R,3S)-3-phenyl-2-butanol and its tosylate. Show more…
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The tosylate of $(2 R, 3 S)-3$ -phenyl-2-butanol undergoes E2 elimination on treatment with sodium ethoxide to yield $(Z)$ - 2 -phenyl-2-butene. Explain, using Newman projections. (EQUATION CAN'T COPY)
In light of your answer to Problem $11.50,$ which alkene, $E$ or $Z,$ would you expect from an E2 reaction on the tosylate of $(2 R, 3 R)-3$ -phenyl-2-butanol? Which alkene would result from E2 reaction on the $(2 S, 3 R)$ and $(2 S, 3 S)$ tosylates? Explain.
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