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Questions and Answers
Which method is NOT used to convert acid chlorides into aldehydes?
Which method is NOT used to convert acid chlorides into aldehydes?
Which of the following describes the role of BaSO₄ in the Rosenmund reduction?
Which of the following describes the role of BaSO₄ in the Rosenmund reduction?
What is the final product of the reaction in the Rosenmund reduction mechanism?
What is the final product of the reaction in the Rosenmund reduction mechanism?
Which of the following reagents is combined with acid chlorides during the Rosenmund reduction?
Which of the following reagents is combined with acid chlorides during the Rosenmund reduction?
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What type of chemical transformation occurs when acid chlorides are converted into aldehydes?
What type of chemical transformation occurs when acid chlorides are converted into aldehydes?
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Study Notes
Aldehyde Synthesis from Acid Chlorides
- Two methods exist for synthesizing aldehydes from acid chlorides: lithium tri-t-butoxyaluminum hydride reduction and Rosenmund reduction.
- The Rosenmund reduction uses hydrogen gas (H₂) and a palladium catalyst supported on barium sulfate (Pd/BaSO₄) to convert acid chlorides (R-C(=O)-Cl) to aldehydes (R-C(=O)H).
- The barium sulfate (BaSO₄) acts as a catalyst support and helps control the reaction, preventing further reduction of the aldehyde to an alcohol.
- The Rosenmund reduction is a specific and selective reaction for aldehyde synthesis.
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Description
This quiz covers the methods of synthesizing aldehydes from acid chlorides, focusing on lithium tri-t-butoxyaluminum hydride reduction and the Rosenmund reduction. You'll learn about the catalysts used and the mechanisms that ensure selective conversion without excessive reduction. Test your understanding of these important reactions in organic chemistry.