Aldol condensations and grignard reagents


Assignment:

Q1. "Crossed" or "mixed" aldol condensations are practical for synthesis, if one of the aldehydes (or ketones) has no alpha-hydrogen atoms. Explain.

Q2. In the aldol condensation using the conditions of this experiment, why might it be essential that the benzaldehyde contain no benzoic acid?

Q3. What hydrocarbon would you expect to obtain by the action of water on each of the Grignard reagents listed below?
a. Butylmagnesium bromide
b. sec-Butylmagnesium bromide
c. iso-Butylmagnesium bromide
d. tert-Butylmagnesium bromide

Q4. What product would each of the Grignard reagents in the previous question yield when treated with D2O?

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Chemistry: Aldol condensations and grignard reagents
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