In the field of organic chemistry, a polycyclic compound is an organic compound featuring several closed rings of atoms, primarily carbon.[1] These ring substructures include cycloalkanes, aromatics, and other ring types. They come in sizes of three atoms and upward, and in combinations of linkages that include tethering (such as in biaryls), fusing (edge-to-edge, such as in anthracene and steroids), links via a single atom (such as in spiro compounds), bridged compounds, and longifolene. Though poly- literally means "many", there is some latitude in determining how many rings are required to be considered polycyclic; many smaller rings are described by specific prefixes (e.g., bicyclic, tricyclic, tetracyclic, etc.), and so while it can refer to these, the title term is used with most specificity when these alternative names and prefixes are unavailable.
In general, the term polycyclic includes polycyclic aromatic compounds, including polycyclic aromatic hydrocarbons, as well as heterocyclic aromatic compounds with multiple rings (where heteroaromatic compounds are aromatic compounds that contain sulfur, nitrogen, oxygen, or another non-carbon atoms in their rings in addition to carbon).
Brevetoxin A, a natural product with ten rings, all fused, and all heterocyclic, and a toxic component associated with the organisms responsible for red tides. The R group at right refers to one of several possible four-carbon side chains. (See Brevetoxin.)
^William Reusch. "Naming Organic Compounds". Michigan State University.
December 15, 2023
polycyclic, compound, field, organic, chemistry, polycyclic, compound, organic, compound, featuring, several, closed, rings, atoms, primarily, carbon, these, ring, substructures, include, cycloalkanes, aromatics, other, ring, types, they, come, sizes, three, a. In the field of organic chemistry a polycyclic compound is an organic compound featuring several closed rings of atoms primarily carbon 1 These ring substructures include cycloalkanes aromatics and other ring types They come in sizes of three atoms and upward and in combinations of linkages that include tethering such as in biaryls fusing edge to edge such as in anthracene and steroids links via a single atom such as in spiro compounds bridged compounds and longifolene Though poly literally means many there is some latitude in determining how many rings are required to be considered polycyclic many smaller rings are described by specific prefixes e g bicyclic tricyclic tetracyclic etc and so while it can refer to these the title term is used with most specificity when these alternative names and prefixes are unavailable Longifolene a terpene natural product and an example of a tricyclic moleculeCholesterol another terpene natural product in particular a steroid a class of tetracyclic moleculesBenzo a pyrene a pentacyclic compound both natural and man madePagodane a man made polycyclic compoundIn general the term polycyclic includes polycyclic aromatic compounds including polycyclic aromatic hydrocarbons as well as heterocyclic aromatic compounds with multiple rings where heteroaromatic compounds are aromatic compounds that contain sulfur nitrogen oxygen or another non carbon atoms in their rings in addition to carbon An example of a polycyclic compound based on a nitrogen cage is hexanitrohexaazaisowurtzitane Brevetoxin A a natural product with ten rings all fused and all heterocyclic and a toxic component associated with the organisms responsible for red tides The R group at right refers to one of several possible four carbon side chains See Brevetoxin Naming editThere is a scheme for naming polycyclic compounds using square brackets and numbers See Cycloalkane Nomenclature and Bicyclic molecule Nomenclature See also editPolycyclic aromatic compound Polycyclic aromatic hydrocarbonReferences edit William Reusch Naming Organic Compounds Michigan State University Retrieved from https en wikipedia org w index php title Polycyclic compound amp oldid 1140997537, wikipedia, wiki, book, books, library,
