What are acid sensitive and base sensitive groups and their examples

Acid sensitive and base sensitive groups are functional groups that can react with acids or bases, respectively, leading to chemical changes in the molecule. These groups are commonly found in organic compounds and play a crucial role in various chemical reactions.

Acid sensitive groups, also known as acid labile groups, are susceptible to protonation by acids. This protonation can result in the cleavage or modification of the group. Some examples of acid sensitive groups include acetal, ketal, and ester groups. Acetals and ketals can be hydrolyzed in the presence of acid, while esters can undergo esterification or hydrolysis reactions.

On the other hand, base sensitive groups, also known as base labile groups, are prone to deprotonation by bases. This deprotonation can lead to the cleavage or modification of the group. Examples of base sensitive groups include amide, carbamate, and sulfonamide groups. Amides can be hydrolyzed in the presence of base, while carbamates and sulfonamides can undergo elimination or substitution reactions.

It is important to note that the reactivity of acid sensitive and base sensitive groups can vary depending on the specific conditions and the nature of the surrounding molecules. Therefore, it is crucial to consider the reaction conditions and the desired outcome when working with these groups in organic synthesis or other chemical processes.