A-LevelChemistryOrganic synthesis9701/12 · May/June 2012 · Q281 Mark

Coniine is the major constituent of the poison 'oil of hemlock'. [Figure 28.1] Coniine can be synthesised by reacting ammonia with a dibromo compound, X. NH3 + C8H16Br2 → coniine + 2HBr What is the name of compound X?

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A1,1-dibromo-2-propylcyclopentane

B1,2-dibromo-2-propylcyclopentane

C1,4-dibromooctane

D1,5-dibromooctane

✓ Correct answer

D: 1,5-dibromooctane

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Topic: Organic synthesis, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2012 Paper 1 Variant 2, question 28.

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