Among the following,which one is not formed i | vedclass

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

Question

(D) The Hoffmann bromamide degradation reaction involves the conversion of an amide $(RCONH_2)$ to a primary amine $(RNH_2)$ using $Br_2$ and $KOH$ (o

Vedclass · Accepted Answer

$RNC$

Vedclass · Answer

(D) The Hoffmann bromamide degradation reaction involves the conversion of an amide $(RCONH_2)$ to a primary amine $(RNH_2)$ using $Br_2$ and $KOH$ (or $NaOH$).The mechanism proceeds through the following intermediates:$1$. Formation of $N$-bromamide: $RCONH_2 + Br_2 + KOH \rightarrow RCONHBr + KBr + H_2O$.$2$. Formation of an isocyanate intermediate: $RCONHBr + KOH \rightarrow RNCO + KBr + H_2O$.$3$. Hydrolysis of isocyanate to amine: $RNCO + 2KOH \rightarrow RNH_2 + K_2CO_3$.Among the given options,$RNC$ (isocyanide) is not formed during this reaction. $RNCO$ (isocyanate) is an intermediate,$RCONHBr$ is an intermediate,and $RNH_2$ is the final product.

Among the following,which one is not formed in the Hoffmann bromamide degradation reaction?

Similar Questions

The product $(C)$ in the above reaction is:

Which of the following statements is true?

$A$ compound with molecular mass $180$ is acylated with $CH_3COCl$ to get a compound with molecular mass $390$. The number of amino groups present per molecule of the former compound is:

Which of the following compounds reacts with $CHCl_3$ and $KOH$ to produce an isocyanide?

When primary amines are treated with $HCl$,the product obtained is

Vedclass Test Series

Exam Paper Generator

Online Exam Module