Q.26
Convert the following :
(a) Acetic acid to ethyl alcohol
(b) Acetic acid to acetic anhydride
(c) Acetyl chloride to acetamide
Best answer
Answer:
(a) Reduction with lithium aluminium hydride in dry ether, followed by hydrolysis:
CH3COOH + 4[H] \(\xrightarrow{\text{(i) LiAlH}_4,\ \text{dry ether; (ii) H}_3\text{O}^+}\) CH3CH2OH + H2O
(b) Heating with P2O5 (dehydrating agent):
2 CH3COOH \(\xrightarrow{\text{P}_2\text{O}_5,\ \Delta}\) (CH3CO)2O + H2O
(c) Ammonolysis of acetyl chloride:
CH3COCl + 2NH3 → CH3CONH2 + NH4Cl
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