Osazone formation involves only 2 carbon atom | vedclass

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

Question

(A) The formation of osazone involves the reaction of $D-glucose$ with $3$ molecules of phenylhydrazine.First,$D-glucose$ reacts with one molecule of

Vedclass · Accepted Answer

Chelation

Vedclass · Answer

(A) The formation of osazone involves the reaction of $D-glucose$ with $3$ molecules of phenylhydrazine.First,$D-glucose$ reacts with one molecule of phenylhydrazine to form $D-glucose$ phenylhydrazone.Second,the second molecule of phenylhydrazine acts as an oxidizing agent,oxidizing the $C-2$ hydroxyl group to a keto group.Third,the third molecule of phenylhydrazine reacts with the newly formed keto group to form $D-glucosazone$.The involvement of only the first two carbon atoms is due to the formation of a stable chelated structure (hydrogen bonding) between the phenylhydrazone group at $C-1$ and the imine group at $C-2$,which prevents further reaction with other hydroxyl groups.

Osazone formation involves only $2$ carbon atoms of glucose because of

Similar Questions

For the complex conversion of $D^{-}$-glucose into the corresponding osazone,the minimum number of equivalents of phenylhydrazine required is:

Mutarotation involves -

Identify the correct statement about glucose from the following.

What type of glycosidic linkages are developed when excess glucose is to be stored for future use in animals?

Which of the following statements is $CORRECT$ about saccharic acid?

Vedclass Test Series

Exam Paper Generator

Online Exam Module