Chemistry 9701 · AS & A Level · Organic synthesis

Organic synthesis — practice question

Compounds $J$ and $K$ are present in plant oils.
(a(i))[3]

Complete Table $4.1$ by stating what you would observe when $J$ reacts with the reagents listed.

(a(ii))[2]

There are two optical isomers of $J$. Draw the three-dimensional structures of the two optical isomers of $J$.

(b(i))[2]

Identify $L$. State the conditions needed for reaction $1$.

(b(ii))[2]

Draw a single repeat unit of the addition polymer Perspex®.

(b(iii))[1]

Use information from Table $4.2$ to suggest in what way the infrared spectra of $M$ and Perspex® would differ. Explain your answer.

(b(iv))[5]

K can be made from propanone in the three-step synthesis shown in Fig. 4.3. Complete Table 4.3 to identify the reagent(s) used and the type of reaction in each step.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: A red/orange/yellow precipitate or solid

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