The product (A) of the reaction is: | vedclass

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

Question

(B) The reaction is a Beckmann rearrangement of benzophenone oxime in the presence of $H_2SO_4$ and $H_2^{18}O$.In the Beckmann rearrangement,the oxim

Vedclass · Accepted Answer

$Ph-NH-C(^{18}O)-Ph$

Vedclass · Answer

(B) The reaction is a Beckmann rearrangement of benzophenone oxime in the presence of $H_2SO_4$ and $H_2^{18}O$.In the Beckmann rearrangement,the oxime undergoes protonation followed by the migration of a phenyl group to the nitrogen atom,resulting in the formation of a nitrilium ion.This nitrilium ion is then attacked by the labeled water molecule $(H_2^{18}O)$.After the loss of a proton,an imidic acid intermediate is formed,which tautomerizes to the final amide product,$N$-phenylbenzamide,containing the $^{18}O$ isotope in the carbonyl group: $Ph-NH-C(^{18}O)-Ph$.

List-$I$	List-$II$
$1.$ Aniline	$a.$ Used in the preparation of azo dyes
$2.$ Nitrobenzene	$b.$ Sulpha drug
$3.$ Sulphanilamide	$c.$ Solvent in Friedel-Crafts reaction
$4.$ Trinitrotoluene	$d.$ Used as an explosive

The product $(A)$ of the reaction is:

Similar Questions

The product of this Hoffmann bromamide reaction is:

Match List-$I$ with List-$II$ and select the correct answer.

List-$I$ List-$II$

$1.$ Aniline $a.$ Used in the preparation of azo dyes

$2.$ Nitrobenzene $b.$ Sulpha drug

$3.$ Sulphanilamide $c.$ Solvent in Friedel-Crafts reaction

$4.$ Trinitrotoluene $d.$ Used as an explosive

In the reaction sequence $CH_3CH_2Br$ $\xrightarrow{AgCN} A$ $\xrightarrow{H_3O^+} HCOOH + B; B$ $\xrightarrow{CHCl_3/KOH} A$ $\xrightarrow{Reduction} C$,what are $A, B,$ and $C$ respectively?

Give a plausible explanation for each of the following:
$(i)$ Why are amines less acidic than alcohols of comparable molecular masses?
$(ii)$ Why do primary amines have higher boiling points than tertiary amines?
$(iii)$ Why are aliphatic amines stronger bases than aromatic amines?

Which of the following compounds does not produce an amine upon hydrolysis?

Vedclass Test Series

Exam Paper Generator

Online Exam Module