Carbon-oxygen double bond are easily reduced by NaBH_(4) or LiAlH_(4). The actual reducing agent in these reduction is hydride ion (H^(-)). The metal-hydrogen bond in LiAlH_(4) is more polar than metal-hydrogen bond in NaBH_(4). As a result LiAlH_(4) is strong reducing agent than NaBH_(4). Esters, carboxylic acids, amides cannot be reducted by NaBH_(4). The carbonyl group of amide to methylene group by LiAlH_(4). underset(NaBH_(4))overset(Hg(OAc)_(2),H_(2) O //H^(+))(rarr)'Z', Identify 'Z' :

Carbon-oxygen double bond are easily reduced by NaBH_(4) or LiAlH_(4).

1.	Carbon-oxygen double bond are easily reduced by NaBH_(4) or LiAlH_(4). The actual reducing agent in these reduction is hydride ion (H^(-)). The metal-hydrogen bond in LiAlH_(4) is more polar than metal-hydrogen bond in NaBH_(4). As a result LiAlH_(4) is strong reducing agent than NaBH_(4). Esters, carboxylic acids, amides cannot be reducted by NaBH_(4). The carbonyl group of amide to methylene group by LiAlH_(4). underset(NaBH_(4))overset(Hg(OAc)_(2),H_(2) O //H^(+))(rarr)'Z', Identify 'Z' :
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