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Kolbe reaction: substrate and product (salicylic acid from sodium phenoxide)

This type of question, asked 3 times: 11 May 2023 S2, 21 Apr 2025 S1, 25 Apr 2025 S1. All 3 questions below, oldest first.

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  1. Question 1

    11 May 2023 S2

    100
    Identify product 'B' in the following reaction. Sodium phenoxide →CO2, 398K, 6 atmA→H3O+B\xrightarrow{\text{CO}_2,\ 398\text{K},\ 6\ \text{atm}} A \xrightarrow{\text{H}_3\text{O}^+} B

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  2. Question 2

    21 Apr 2025 S1

    100
    Identify substrate ' AA ' in the following reaction.
    A+CO2→6 atm398 K Sodium salicylate →H3O+Salicylic acid A +CO_{2}\xrightarrow[6\text{ }atm]{398\text{ }K}\text{~Sodium salicylate~}\xrightarrow{H_{3}O^{+}}\text{Salicylic acid~}

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  3. Question 3

    25 Apr 2025 S1

    69
    Identify the product ' B ' in the following reaction. Sodium phenoxide →6 atmCO2;398 KA→H3O+B\xrightarrow[6\text{ }atm]{CO_{2};398\text{ }K}A\xrightarrow{H_{3}O^{+}}B

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