Use the box to suggest compound A by drawing its structure.
State the reagents and conditions required to convert A into $\text{ClCOCOCl}$.
Use the boxes to suggest the identities of compounds B-E by drawing their structures.
State the reagents and conditions for these steps: step 1; step 3; step 4; step 6.
When the amount of $\text{ClCOCOCl}$ used in step 2 is reduced, a different compound is produced in step 2 with the molecular formula $\text{C}_{14}\text{H}_8\text{O}_2\text{Cl}_2$. Suggest the structure of this compound.
Identify the steps in the synthesis of Q from benzene that are electrophilic substitution reactions.
Draw the structures of the compounds formed when Q is treated with each reagent below. If there is no reaction, write ‘no reaction’ in the box: • heat with $\text{Cr}_{2}\text{O}_{7}^{2-}/\text{H}^{+}(aq)$ • heat with $\text{NaOH}(aq)$ • $\text{Br}_{2}(aq)$ • $\text{HCl}(aq)$ at room temperature