észtercsoport
Észtercsoport is a Hungarian term that translates to "ester group." In organic chemistry, an ester group is a functional group with the general structure R-COO-R', where R and R' are alkyl or aryl groups. This functional group is formed by the reaction of a carboxylic acid with an alcohol, a process known as esterification. The reaction typically involves the removal of a water molecule. Esters are known for their pleasant, often fruity or floral, odors, which is why they are widely used in perfumes, flavorings, and fragrances. They also play significant roles in biological systems. For example, fats and oils are triglycerides, which are esters of glycerol and fatty acids. Phospholipids, essential components of cell membranes, are also ester-based molecules. The reactivity of the ester group allows for various chemical transformations, including hydrolysis (reaction with water to reform the carboxylic acid and alcohol), transesterification (reaction with another alcohol to form a different ester), and reduction. Many important industrial chemicals and pharmaceuticals contain ester functional groups.