"The way molecules react with each other in organic syntheses is explained by so called "organic reaction mechanisms". Every year a lot of research is done to better understand these mechanisms, in order to find new synthetic routes, and to improve existing syntheses in view of specificity, yield and environmental impact ["green chemistry"]. The understanding of organic reaction mechanisms is the key to every organic synthesis. Organic Reaction Mechanisms 2018, the 54th annual volume in this highly successful and unique series, surveys research on organic reaction mechanisms described in the available literature dated 2018"-- Provided by publisher.