Established in 1960, "Advances in Heterocyclic Chemistry" aims to be the definitive serial in the area - one of great importance to organic chemists, polymer chemists and most biological scientists. Each volume of "Advances in Heterocyclic Chemistry" contains an index and each chapter includes references. The compounds covered play a vital role in many fields: heterocyclic intermediates are being widely used in organic synthesis; furan, pyrrole and thiopene are anticipated to be emitted into the atmosphere in significant amounts from the fuel conversion facilities - atmospheric and environmental chemists need to acquaint themselves with the chemistry of these compounds; in the field of biology, heterocyclic compounds are found everywhere - carbohydrates, chlorophyll, and heme are all heterocyclic; heterocycles form the sites of reaction in many enzymes and coenzymes; heredity is ultimately the particular sequence of attachment of six heterocyclicrings to the long chains of nucleic acids; medicines are heterocyclic compounds.