Aldehydes Ketones Question 45

Question: Which of the following reaction can produce $ R-CO-Ar- $

Options:

A) $ ArCOCl+H-Ar\xrightarrow{AlCl_3} $

B) $ RCOCl+ArMgX\xrightarrow{{}} $

C) $ ArCOCl+RMgX\xrightarrow{} $

D) $ RCOCl+H-Ar\xrightarrow{Alcl_3} $

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ ArCOR $ can be prepared by the combination of $ ArH+RCOCl $ and not by $ ArCOCl+RMgX $ because here the $ ArCOR $ formed will further react with $ RMgX $ to form $ 3{}^\circ $ alcohol, $ ArC( OH )R_2 $ as the final products.