Carboxylic Acids Question 83

Question: $ CH_3COOCH_3+ $ excess $ PhMgBr $ $ \to product\xrightarrow{{H^{+}}}X $ The product $ X $ is

[Orissa JEE 2005]

Options:

A) 1, 1-diphenylethanol

B) 1, 1-diphenylmethanol

C) Methyl phenylethanol

D) Methyl phenylketone

Show Answer

Answer:

Correct Answer: A

Solution:

$ \xrightarrow{-MgBr(OCH_3)}\overset{O}{\mathop{\overset{||}{\mathop{CH_3-C-Ph}}}}\xrightarrow{PhMgBr}\underset{Ph}{\mathop{\underset{|}{\mathop{\overset{OMgBr}{\mathop{\overset{|}{\mathop{CH_3-C-Ph}}}}}}}} $

$ \xrightarrow{{H^{+}}}\underset{\text{1,1-diphenylethanol}}{\mathop{\underset{Ph}{\mathop{\underset{|}{\mathop{\overset{OH}{\mathop{\overset{|}{\mathop{CH_3C-Ph}}}}}}}}}} $