Heterocyclic chemistry comprises at least half of all organic chemistry research worldwide, including the vast majority of organic work done in the pharmaceutical and agrochemical industries. This edition of Heterocyclic Chemistry maintains the principal objective of earlier editions-to teach the fundamentals of heterocyclic reactivity and synthesis in a way that is understandable to second- and third-year undergraduate chemistry students. The inclusion of more advanced and current material also makes it a valuable reference for postgraduate-taught courses, postgraduate researchers, and chemists at all levels working with heterocyclic compounds in industry.