Definition: In Greek, 'arylation' refers to the joining together of two or more hydrocarbons through a bond, which is often called aldehyde. It occurs in natural products like furans (a type of carbonated sugar), glycosides, and even organic compounds like proteins. The chemical equation for the reaction is: A + N → C + H2O. This process is crucial for many biochemical reactions that control the structure and function of cells, including enzymes, hormones, and neurotransmitters.