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From Wikipedia, the free encyclopedia

In organic chemistry, a cyclic compound is a compound in which a series of carbon atoms are connected to form a loop or ring.[1] Benzene is a well known example. The term "polycyclic" is used when more than one ring is formed in a single molecule for instance in naphthalene, and the term macrocycle is used for a ring containing more than a dozen atoms.



Cyclic compounds can be categorized:

Ring-closing & opening reactions

Dieckmann ring-closing reaction

Related concepts in organic chemistry are so-called ring-closing reactions in which a cyclic compound is formed and ring-opening reactions in which rings are opened.

Examples of ring-closing reactions:

Example of ring-opening reactions:

External links


  1. ^ March, Jerry (1985), Advanced Organic Chemistry: Reactions, Mechanisms, and Structure (3rd ed.), New York: Wiley, ISBN 0-471-85472-7  

See also


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