Lexic.us

Definition of Heterocyclic compound

1. Noun. A compound containing a heterocyclic ring.

Medical Definition of Heterocyclic compound

1. Any compound in which the constituent atoms, or any part of them, form a ring. Used mainly in organic chemistry where: 1) numerous compound's contain rings of carbon atoms (carbocyclic compound's) or carbon atoms plus one or more atoms of other types (heterocyclic compound's), usually nitrogen, oxygen, or sulfur; 2) where the atoms in the ring are all of the same element (homocyclic or isocyclic compound); 3) where the ring is saturated or contains nonconjugated double bonds (alicyclic compound), the compound is similar in properties to the corresponding acyclic compound (e.g., cyclohexane resembles hexane); 4) where the ring contains conjugated double bonds in a closed loop in which there are 4n + 2 (where n is an integer) delocalised π electrons (Huckel's rule) (aromatic compound; e.g., benzene, pyridine), it is more stable than the corresponding saturated ring and exhibits unusual chemical properties characteristic of itself and not of other types of rings or of acyclic compound's. These aromatic compounds have the ability to sustain an induced ring current. Synonym: closed chain compound, ring compound. (05 Mar 2000)

Lexicographical Neighbors of Heterocyclic Compound

Literary usage of Heterocyclic compound

Below you will find example usage of this term as found in modern and/or classical literature:

1. A French-English Dictionary for Chemistsby Austin McDowell Patterson by Austin McDowell Patterson (1921)
"(7) The French ending -ane should be translated -one if it is the name of a hydrocarbon (or parent heterocyclic compound) which is fully saturated; ..."

2. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1911)
"... or diphenylene ketone oxide), С»И»О|, in organic chemistry, a heterocyclic compound containing the ring system shown below. ..."

3. Practical organic and bio-chemistry by Robert Henry Aders Plimmer (1920)
"Its constitution has been shown to be HC — CH II II HC CH a heterocyclic compound containing 4 carbon atoms and a sulphur atom. ..."

4. A German-English Dictionary for Chemistsby Austin McDowell Patterson by Austin McDowell Patterson (1917)
"... the name of a hydrocarbon (or parent heterocyclic compound) which is fully saturated; otherwise, -an. Examples: methane, menthane", tolan, furan, ..."

5. In-Situ Bioremediation of Ground Water and Geological Material: A Review of ...by Robert D. Norris by Robert D. Norris (1995)
"... a sulfur-containing heterocyclic compound (Godsy and Grbic-Galic, 1989). Fermentation/methanogenic degradation could be used as a passive bioremediation ..."

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