Why can several functional groups make an organic compound’s reactions harder to predict?

While functional groups typically allow chemists to predict the reactivity of organic molecules, the presence of multiple functional groups—known as polyfunctional compounds—can make these predictions more difficult.12

In these complex molecules, the various functional groups do not always act independently. Instead, they often interact with one another, which can impart unique reactivity patterns that differ from the characteristic behavior of each group in isolation. Because of this interconnectedness, the properties of polyfunctional organic compounds can be more complicated to determine than those of simpler molecules. As chemistry continues to evolve, researchers are increasingly able to understand these complex interactions to design sophisticated laboratory syntheses.231