Chapter 10: Q43P (page 537)

Suggest carbonyl compounds and reducing agents that might be used to form the following alcohols.
heptan-1-ol
1-cyclohexylethanol
1-phenylpropan-1-ol

e)
f)

Short Answer

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Step by step solution

Reducing agents

Reducing agents are used for reducing the organic compounds containing carbonyl compounds like aldehydes, ketones, esters etc. There are different reducing agents like NaBH₄ , LiAIH₄used for reducing carbonyl-containing compounds.

Step 2: Formation of heptan-1-ol

a) When aldehyde is treated with a reducing agent in methanol, the carbonyl group is reduced to alcohol and forms heptan-1-ol.

Formation of heptan-1-ol

Formation of 1-cyclohexylethanol

b) When ketone is treated with a reducing agent in methanol or followed by hydrolysis, then the carbonyl group is reduced to alcohol and forms 1-cyclohexylethanol.

Formation of 1-cyclohexylethanol

Formation of 1-phenylpropan-1-ol

c) When ketone is treated with a reducing agent in methanol or followed by hydrolysis, then the carbonyl group is reduced to alcohol and forms 1-phenylpropan-1-ol.

Formation of 1-phenylpropan-1-ol

Formation of alcohol

d) When ketone is treated with a reducing agent in methanol or followed by hydrolysis, then the carbonyl group is reduced to an alcohol.

Formation of alcohol

e) When ketone and the aldehyde-containing compound is treated with a reducing agent NabH₄ in methanol or LiAIH₄followed by hydrolysis, then both the carbonyl groups of ketone and aldehyde are reduced to an alcohol.

Formation of alcohol

Step 7: Formation of alcohol

f) When ketone and the ester-containing compound is treated with a reducing agent in methanol, then only the carbonyl group of the ketone is reduced to an alcohol.