The major product A obtained in the above rea | vedclass

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

Question

(A) The reaction of a $1,2$-amino alcohol with $HNO_2$ (Tiffeneau-Demjanov rearrangement or similar pinacol-type rearrangement) involves the formation

Vedclass · Accepted Answer

Vedclass · Answer

(A) The reaction of a $1,2$-amino alcohol with $HNO_2$ (Tiffeneau-Demjanov rearrangement or similar pinacol-type rearrangement) involves the formation of a diazonium ion followed by the migration of an anti-periplanar group to the carbocation center formed after the loss of $N_2$. In the given Newman projection,the $Ph$ group is anti to the $-N_2^+$ group. Upon loss of $N_2$,the $Ph$ group migrates to the adjacent carbon,resulting in the formation of a ketone. Based on the stereochemistry of the migration,the $Ph$ group migrates to the carbonyl carbon,leading to the product shown in image $355-$a404.

The major product $A$ obtained in the above reaction is:

Similar Questions

The enol percentage of the following compound is maximum for:

Ionic reactions with organic compounds proceed through:
$(A)$ Homolytic bond cleavage
$(B)$ Heterolytic bond cleavage
$(C)$ Free radical formation
$(D)$ Primary free radical
$(E)$ Secondary free radical
Choose the correct answer from the options given below:

Which kind of fission is favoured by sunlight?

Which different types of reaction mechanisms are observed in addition reactions?

The correct order of the rate of $ESR$ (Electrophilic Substitution Reaction) in the given compounds is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module