Stereoselective Alkene Synthesis by the Horner-Emmons Reaction: 1. what would be

Question

Stereoselective Alkene Synthesis by the Horner-Emmons Reaction:

1. what would be observed if the phase transfer catalyst, tetrabutylammonium bromide, was ommited? Why?

4. Why was the reaction flask rinsed with diethyl ether?

5. Why was the crude reaction mixture extracted twice, not once, with deionized water? (i put that it will maximize the product yield..is this right?)

6. Why are cis and trans stilbene visable on a TLC plate when vieweed with short-wave ultraviolet light?

7. Use the curved- arrow notation to draw the mechanism for the formation of cis-stilbene from benzaladeyde

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Stereoselective Alkene Synthesis by the Horner-Emmons Reaction: 1. what would be

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