Chemistry 9701 · AS & A Level · Organic synthesis

Organic synthesis — practice question

The reactions of compound G are illustrated.
(a(i))[1]

State the reaction type occurring in reaction 1.

(a(ii))[2]

Suggest which reagent(s) and conditions are needed for reaction 1.

(a(iii))[1]

Draw the structure of the organic product H formed in reaction 2.

(a(iv))[1]

State the observation in reaction 3.

(a(v))[1]

Give the reaction type shown by reaction 4.

(b(i))[1]

G and J are structural isomers of one another. Name the kind of structural isomerism shown by G and J.

(b(ii))[2]

Suggest one chemical test that can tell G and J apart. Give the result with each compound.

(b(iii))[1]

In the reaction schemes below, G and J are changed into organic compound K. State the role of $\text{NaBH}_4$ in the reactions with G and J.

(b(iv))[1]

Identify organic product K.

(c)[3]

Complete the table with the expected observations when P and Q react with the named reagents.

(d(i))[1]

Identify the bonds that cause the absorptions labelled X and Z.

(d(ii))[1]

State the name of M.

(d(iii))[1]

Use the details in (d) to deduce the molecular formula of L.

(ii)[1]

Give the name of M.

(iii)[1]

Use the details in (d) to deduce the molecular formula of L.

Worked solution & mark scheme

This 19-mark question has a full step-by-step worked solution and mark scheme. One marking point: oxidation

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