Long answer·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
Convert aniline to p-bromoaniline as the major product. Give the sequence and explain why protection is needed.
Total: 4 marks
(a) Write the protecting step. (1 mark)
(b) Write the bromination step. (1 mark)
(c) Write the deprotection step. (1 mark)
(d) Explain why direct bromination is unsuitable. (1 mark)
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