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Aldoximes on reduction with LiAlH(4) or ...

Aldoximes on reduction with `LiAlH_(4)` or `Na//C_(2)H_(5)OH` give

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To solve the question regarding the reduction of aldoximes with lithium aluminium hydride (LiAlH₄) or sodium in ethanol (Na/C₂H₅OH), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Aldoximes**: - Aldoximes are compounds with the general structure RCH=NOH, where R is an alkyl or aryl group. They are derived from aldehydes. 2. **Reduction Agents**: - The reduction agents mentioned in the question are lithium aluminium hydride (LiAlH₄) and sodium in ethanol (Na/C₂H₅OH). Both are known to reduce functional groups. 3. **Reaction Mechanism**: - When aldoximes are treated with LiAlH₄ or Na/C₂H₅OH, the double bond between carbon and nitrogen (C=N) in the aldoxime is reduced. - The reduction process involves the addition of hydrogen atoms to the nitrogen and carbon atoms. 4. **Formation of Primary Amines**: - The reduction of aldoximes leads to the formation of primary amines. Specifically, the product of the reduction will be RCH₂NH₂. - This indicates that the carbon atom of the aldoxime becomes a methylene group (–CH₂–) and the nitrogen atom is converted to an amine group (–NH₂). 5. **Final Products**: - Therefore, the final products of the reduction of aldoximes with LiAlH₄ or Na/C₂H₅OH are primary amines. The general reaction can be summarized as: - RCH=NOH + [H] → RCH₂NH₂ (Primary Amine) ### Conclusion: When aldoximes are reduced with lithium aluminium hydride (LiAlH₄) or sodium in ethanol (Na/C₂H₅OH), they yield primary amines.
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