Chapter 14, Problem 5LGP

Interpretation Introduction

Interpretation:

The structures of the nicotinamide ring in $\text{NADH}$ and ${\text{NAD}}^{\text{+}}$ are to be drawn and the way in which the hydrogen transfer occurs in the conversion of $\text{NADH}$ to ${\text{NAD}}^{\text{+}}$ is to be explained.

Concept introduction:

Nicotinamide exists in the oxidized form in $\text{NADH}$ and gets converted into an aromatic pyridinium ring on reduction, leading to the formation of ${\text{NAD}}^{\text{+}}$.