`D-(+)-`Glucose`overset(5(CH_(4)CO)O)rarrD-(+)` glucose pentaacetate.
Which statement is true about glucose pentaacetate ?

Options

A. It will react with Tollen's reagent but not with reagent
B. It will react with Tollen's reagent but not with phenylhydrazine
C. It will react with both of the above mentioned reagents.
D. It will react netiher with phenylhydrazine nor with Tollen's reagent.

Answer

D

Explanation

During acetylation of `(+)-`glucose, it is the `C_(1)-OH`of the hemiacetal that is acetylated and not the `C_(5)-OH` that forms the ring `(` cyclic structure `)`. Since equilibrium with the open`-` chain aldehyde is prevented, the pentaacetate does not respend the aldehydic reactions.