CAIE A Level Chemistry 9701 · Organic synthesis
Propanone reacts with phenylmagnesium bromide, , followed by aqueous acid, to give 2-phenylpropan-2-ol. A student proposes to prepare this alcohol by adding propanone to an excess of phenylmagnesium bromide.
Suggest two possible by-products that could form in this reaction, and for each one explain how it is produced.
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
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