Synthesis of Aldehydes and Ketones Using Carboxylic Acid and Its Derivatives
The reduction...
Question
The reduction of benzoyl chloride with Pd and BaSO4/CaSO3 produces :
A
benzyl chloride
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B
benzoic acid
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C
benzaldehyde
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D
All of the above
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Solution
The correct option is B benzaldehyde The reduction of benzoyl chloride with Pd and BaSO4/CaSO3 produces benzaldehyde. BaSO4 is poisoned with sulphur so that further reduction of benzaldehyde is prevented. This reaction is known as Rosenmund reaction. C6H5COCl+H2Pd/BaSO4/CaSO3−−−−−−−−−−−−→C6H5CHO+HCl