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Aldehydes, Ketones and Carboxylic Acids
Preparation of Carboxylic Acids – Grignard Reagent
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- years asked, 2017–2026
- 1 of 10
- of Aldehydes, Ketones and Carboxylic Acids
- 1.1%
Concepts tested
- intermediate in Grignard carboxylation
All Questions
2022 1 question
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$RMgX+CO_2\xrightarrow{dry\ ether}Y\xrightarrow{H_3O^+}RCOOH$. What is Y in the above reaction?The Grignard reagent adds to $CO_2$: $RMgX + O=C=O \rightarrow R-COO^-\,{}^+MgX$ (Y) $R-COOMgX \xrightarrow{H_3O^+} R-COOH$ So Y is $RCOO^-Mg^+X$.