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Heterocyclic organic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of organic heterocycles. [ 2 ] Examples of heterocyclic compounds include all of the nucleic acids , the majority of drugs, most biomass ( cellulose and related materials), and many natural and synthetic dyes.
Niacin, essential to many types of life, is an example of a heterocyclic amine. Heterocyclic amines , also sometimes referred to as HCA s, are chemical compounds containing at least one heterocyclic ring, which by definition has atoms of at least two different elements, as well as at least one amine (nitrogen-containing) group.
Heterocyclic compounds with 5 rings (2 C, 107 P) Heterocyclic compounds with 6 rings (1 C, 34 P) Heterocyclic compounds with 7 or more rings (1 C, 29 P) M. Metalloles ...
Examples of ring compounds readily include cases where: all the atoms are carbon (i.e., are carbocycles), none of the atoms are carbon (inorganic cyclic compounds), [2] or where; both carbon and non-carbon atoms are present (heterocyclic compounds with rings containing both carbon and non-carbon).
A triazole is a heterocyclic compound featuring a five-membered ring of two carbon atoms and three nitrogen atoms with molecular formula C 2 H 3 N 3.Triazoles exhibit substantial isomerism, depending on the positioning of the nitrogen atoms within the ring.
Purine is a heterocyclic aromatic organic compound that consists of two rings (pyrimidine and imidazole) fused together.It is water-soluble.Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers.
Bicyclic structures occur widely, for example in many biologically important molecules like α-thujene and camphor. A bicyclic compound can be carbocyclic (all of the ring atoms are carbons), or heterocyclic (the rings' atoms consist of at least two elements), like DABCO. [2]
In chemistry, mesoionic compounds are one in which a heterocyclic structure is dipolar and where both the negative and the positive charges are delocalized. [1] A completely uncharged structure cannot be written and mesoionic compounds cannot be represented satisfactorily by any one mesomeric structure. [1] Mesoionic compounds are a subclass of ...