What type of reaction is a Grignard reaction?  What is the critical intermediate (which can be isolated and enables the final product)? Why should water be excluded from a Grignard reaction?  Since this is the case, why does just addition of a cotton ball work for our reaction setup? Why was extraction by both acid AND base necessary to arrive at highly purified benzoic acid? If we wanted to improve our set-up, we could have added a desiccant between two cotton plugs.  Why is this much better than adding drying agents such as Na2SO4directly into the solution? If we had gotten less than 50% yield for the overall process, what is at least one likely source of loss?

EBK A SMALL SCALE APPROACH TO ORGANIC L
4th Edition
ISBN:9781305446021
Author:Lampman
Publisher:Lampman
Chapter81: Extractions, Separations, And Drying Agents
Section: Chapter Questions
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  1. What type of reaction is a Grignard reaction?  What is the critical intermediate (which can be isolated and enables the final product)?
  2. Why should water be excluded from a Grignard reaction?  Since this is the case, why does just addition of a cotton ball work for our reaction setup?
  3. Why was extraction by both acid AND base necessary to arrive at highly purified benzoic acid?
  4. If we wanted to improve our set-up, we could have added a desiccant between two cotton plugs.  Why is this much better than adding drying agents such as Na2SO4directly into the solution?
  5. If we had gotten less than 50% yield for the overall process, what is at least one likely source of loss?
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