What is the use of barium sulphate in rosenmund reaction
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What is the function of BaSO4 in rosenmund reaction?
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Report by Amanassandiah 27.12.2016
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Sawakkincsem Samaritan
The rosenmund reaction is catalyzed by palladium on barium sulfate. Barium sulfate reduces the activity of palladium due to its low surface area meaning it decreases the reducing power of palladium in order to prevent over-reduction of the acid.
Acyl chloride -----> primary aldehyde
This reduction in activity is required otherwise palladium being a strong reducing agent will further reduce the aldehyde formed to alcohol, which will react with the remaining acyl chloride to produce an ester.
Primary aldehyde -----> primary alcohol
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