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    Organometallic Chemistry and Reaction Types

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    Hi, I need some help with these questions:
    5. In the experiment, ligroin may be used as a solvent for the separation of
    the product from biphenyl.
    a. What is ligroin?
    b. Can you suggest an alternative solvent that might be used in
    this step?

    9. Consider the same reaction as in the previous question (#8) except that in
    this case it is carried out with ethyl benzoate. What product would be i
    expected in this case?

    10. Grignard reagents may be used to prepare other organometallic reagents,
    for example, ethylmagnesium bromide reacts with cadmium chloride to
    yield diethylcadmium.
    2 CH3CH2MgCI + CdCI2 (CH3CH2)2Cd + 2 MgCI2
    Indicate the product of the following reactions and name the
    organometallic product.
    4 CH3MgCI + SiCI4 2 C6HsMgCI + HgCI2 11. para-Nitrobenzaldehyde reacts at a faster rate than benzaldehyde in the
    Perkin reaction while p-N,N-dimethylaminobenzaldehyde is much less
    reactive toward the same nucleophile. Explain.

    18. It is likely that the amount of Grignard reagent your analysis indicates was
    formed is greater than the amount of Grignard reagent actually present
    just before you added water. Explain.

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    Solution Summary

    This solution answers the aforementioned questions on organometallic chemistry and reaction types with respect to defining ligroin, providing reaction mechanisms, explaining nucleophilicity, and discussing the properties of a Grignard's reagent.