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(i)Suggest a two-step synthesis of product 12 starting from 11 and using simplecompounds and reagents that you have met in your University programme.

(i)Give a retrosynthetic analysis followed by the synthesis of compound 17.Show all reactions, reagents and reaction conditions.

Give the retrosynthetic analysis and the synthesis of the following heterocyclic compound, 18. What would you look for in the infrared-spectrum to confirm you had synthesized the correct compound?[4]

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