In What can hydrolysis not occur in?

Hydrolysis cannot occur in anhydrous (water-free) environments, as this process specifically involves the reaction of water with another substance. Additionally, hydrolysis is not applicable to non-aqueous solvents where water is absent, such as in dry organic solvents. Certain chemical compounds that are stable and do not react with water, such as some hydrocarbons, also do not undergo hydrolysis.