Question

The final product of the sequence of the following reaction is $ C{{H}_{3}}-C{{H}_{2}}OH\xrightarrow[\text{or}\,PCC/C{{H}_{2}}C{{l}_{2}}]{Cu/573K}A\xrightarrow{Dil.\,NaOH}B $

• A. $ C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}} $
• B. $ C{{H}_{3}}\overset{OH}{\mathop{\overset{\mathbf{|}}{\mathop{CH}}\,}}\,-C{{H}_{2}}CHO $
• C. $ C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-OH $
• D. $ C{{H}_{2}}=CH-C{{H}_{3}} $

Answer 1

Answer: (B)

$ \underset{Ethanol}{\mathop{C{{H}_{3}}C{{H}_{2}}}}\,-OH\xrightarrow[\text{or}\,\,PCC/C{{H}_{2}}C{{l}_{2}}]{Cu/573K}C{{H}_{3}}CHO $ $ \xrightarrow[(Aldol\,condensation)]{Dil.\,NaOH}\underset{3-hydroxy\,butanal}{\mathop{C{{H}_{3}}-\overset{OH}{\mathop{\overset{\mathbf{|}}{\mathop{CH}}\,}}\,-C{{H}_{2}}CHO}}\, $