Aldehydes Ketones Question 217

Question: The starting compounds needed to make the following compound-

Options:

A) benzaldehyde and 3-pentanone

B) acetophenone and 2-butanone

C) acetophenone and butanal

D) benzaldehyde and 2-pentanone

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ C_6H_5-\underset{H}{\overset{O}{\mathop{\underset{|}{\overset{||}{\mathop{C}}}}}}+\underset{CH_3}{\mathop{\underset{|}{\mathop{C}}}}H_2-\overset{O}{\mathop{\overset{||}{\mathop{C}}}}-CH_2-CH_3\xrightarrow[\Delta ]{KOH,CH_3OH} $

$ C_6H_5-\overset{OH}{\mathop{\overset{|}{\mathop{C}}}}H-\underset{CH_3}{\mathop{\underset{|}{\mathop{C}}}}H-\overset{O}{\mathop{\overset{||}{\mathop{C}}}}-CH_2CH_3\xrightarrow{-H_2O} $

$ C_6H_5-\overset{{}}{\mathop{\overset{{}}{\mathop{C}}}}H-\underset{CH_3}{\mathop{\underset{|}{\mathop{C}}}}H-\overset{O}{\mathop{\overset{||}{\mathop{C}}}}-CH_2CH_3 $