A-LevelChemistryOrganic synthesisOct/Nov 2009Paper 1 Q281 Mark
The characteristic odour of rum is attributed to the compound 2-ethyl-3-methylbutanoic acid. [Figure 28.1] Which compound will produce 2-ethyl-3-methylbutanoic acid by heating under reflux with alcoholic sodium cyanide and subsequent acid hydrolysis of the reaction product?
ACH3CH(CH3)CH2CH(Br)CH3
BCH3CH(CH3)CH(Br)CH2CH3
CCH3CH(C2H5)CH(CH3)CH2Br
DCH3CH(CH2Br)CH2CH(CH3)CH3
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The correct answer is B. This question tests the candidate's understanding of organic synthesis within the Chemistrysyllabus. The examiner's mark scheme requires...
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