The major products P and Q in the following r | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Step $1$: The reaction of benzaldehyde oxime $(C_6H_5-CH=NOH)$ with acetic anhydride $((CH_3CO)_2O)$ causes dehydration to form benzonitrile $(P =

Vedclass · Accepted Answer

$P$ = $C_6H_5-CN$,$Q$ = $C_6H_5-CO-CH_3$

Vedclass · Answer

(A) Step $1$: The reaction of benzaldehyde oxime $(C_6H_5-CH=NOH)$ with acetic anhydride $((CH_3CO)_2O)$ causes dehydration to form benzonitrile $(P = C_6H_5-CN)$.Step $2$: The reaction of benzonitrile $(C_6H_5-CN)$ with methylmagnesium iodide $(CH_3MgI)$ followed by acid hydrolysis $(H_3O^+)$ is a standard method to prepare ketones. The Grignard reagent attacks the nitrile carbon to form an imine intermediate,which upon hydrolysis yields acetophenone $(Q = C_6H_5-CO-CH_3)$.

The major products $P$ and $Q$ in the following reactions are:
$C_6H_5-CH=NOH$ $\xrightarrow{(i) (CH_3CO)_2O} P$ $\xrightarrow{(i) CH_3MgI, (ii) H_3O^+} Q$

Similar Questions

Ethylbenzene is generally prepared by acetylation of benzene followed by reduction and not by direct alkylation. Explain why.

The major product of the following reaction is:
$CH_3CH_2CH=CH_2$ $\xrightarrow[Rh \ \text{catalyst}]{H_2/CO}$

$C_6H_6 + CO + HCl \xrightarrow{\text{Anhy. } AlCl_3} X + HCl$. Compound $X$ is

In the following reaction,product $P$ is: $RCOCl \xrightarrow{H_2, Pd-BaSO_4} P$

Which of the following reactions will produce $R-CO-Ar$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The major products $P$ and $Q$ in the following reactions are:$C_6H_5-CH=NOH$ $\xrightarrow{(i) (CH_3CO)_2O} P$ $\xrightarrow{(i) CH_3MgI, (ii) H_3O^+} Q$