SEARCH Articles Figures Tables Amination at Ring Carbon and Nitrogen Bicyclic carbon-sulfur-nitrogen rings Carbon-Nitrogen-Chalcogen Ring Systems Carbon-nitrogen-metal rings Carbon-nitrogen-oxygen rings Carbon-nitrogen-oxygen-sulfur rings Carbon-nitrogen-phosphorus-sulfur-metal rings Carbon-nitrogen-selenium rings Carbon-nitrogen-sulfur rings Carbon-nitrogen-sulfur-metal rings Carbon-oxygen-nitrogen-metal rings Carbon-phosphorus-nitrogen rings Carbon—nitrogen rings conjugates Carbon—nitrogen-sulfur/selenium rings Eight-Membered Ring Preserved Substitution at Nitrogen, Sulfur, and Carbon Ring Carbon