CAIE A Level Chemistry 9701 · Organic synthesis
A molecule of methyl 3-methylbut-2-enoate has the structure
It contains both an alkene group and an ester group. Describe the reactions of this molecule with each of the following reagents, stating the type of reaction and the functional group that reacts.
(a) bromine dissolved in an inert organic solvent at room temperature
(b) hot concentrated aqueous sodium hydroxide
(c) hydrogen in the presence of a nickel catalyst
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.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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