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    Grignard Reaction Lab Questions

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    1) What is the purpose of grinding the magnesium before introducing it into the reaction flask?
    2) What are the visual clues you will use to determine that Grignard formation is initiated in the reaction flask?
    3) If the methyl benzoate used to prepare triphenylmethanol is wet what by-product is formed?
    a. If the ethyl benzoate used to prepare triphenylmethanol is wet, what byproduct is formed?
    4) Write the chemical reactions for the formation of respective Grignard reagents from the reaction of magnesium with the following organic halides:
    a. Iodomethane
    b. Chlorocyclohexane.
    5) What product(s) would you observe if you tried to prepare a Grignard reagent from 4-bromo-1-butanol? (Hint: 4-hydroxybutylmagnesium bromide is not the final product)

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    1) What is the purpose of grinding the magnesium before introducing it into the reaction flask?
    The reaction works best if the magnesium has a large surface area with which to react with the alkyl halide. Grinding makes the magnesium into a fine powder, increasing its surface area.

    2) What are the visual clues you will use to determine that Grignard formation is initiated in the ...

    Solution Summary

    Grignard Reaction Lab Questions are answered in detail.

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