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[Post New] 7 Feb 2012 17:15:14 IST
   Subject: rosenmond rxn
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kavya bhat (5)

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 why do we use  BaSO4 in this reaction? and what would happen if  only palladium is used?
    

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[Post New] 8 Feb 2012 10:44:08 IST
   Subject: rosenmond rxn
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RISHABH BAJPAI (225)

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BaSO4 is used to control the reduction to aldehyde otherwise the aldehyde will be further reduced to alcohol..
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[Post New] 8 Feb 2012 14:14:50 IST
   Subject: rosenmond rxn
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ROHAN KUMAR (55)

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BaSO4 is one of imp. components of lindlar's catalyst which reduces the alkyne to alkene and benzoyl chloride to benzenealdehyde .here BaSO4 acts as solvent
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[Post New] 8 Feb 2012 21:13:02 IST
   Subject: rosenmond rxn
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rishabh (0)

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BaSO4 is used to poison palladium to reduce its reactivity by getting absorbed on its surface and reducing the surface area and hence reactivity....this helps in controlled reduction to aldehyde
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[Post New] 9 Feb 2012 19:03:10 IST
   Subject: rosenmond rxn
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Madhusudan Chavan (3238)

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 barium sulphate is responsilble for poisoning the surface of the catalyst preventing over reduction. If this is not done the aldehyde formed will be easily reduced to the primary alcohol.
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