|WikiProject Chemistry||(Rated Start-class, High-importance)|
Pentazole and cyclohexasilane
Can be pentazole (pentaazacyclopentadiene, N5H) or cyclohexasilane (hexasilabenzene, Si6H6) considered to be heterocyclic compounds ? Is heterocyclic opposite of carbocyclic or homocyclic ? --Mykhal 22:05, 20 Nov 2004 (UTC)
- Well, I'll reply myself. I just have found out IUPAC definition of heterocyclic compounds: Cyclic compounds having as ring members atoms of at least two different elements.
So.. they cannot be. --Mykhal 22:15, 20 Nov 2004 (UTC)
Great. There is no need to leave the text in the redirect page. I have edited it to remove the merge tag and category as these show when you look at the redirect page. --Bduke 21:08, 6 February 2006 (UTC)
Heterocyclic amines and cancer section
The section on heterocyclic amines and cancer seems out of place in this article. Since heterocyclic amines redirects here from various food pages, it seems as if it is being used as a coatrack for the health concerns. I'm moving the section to heterocyclic amines and working on that article. ChemGardener (talk) 18:17, 9 November 2008 (UTC)
Hello. Tetrahydro- prefix is not recommended by the IUPAC for the fully saturated heterocyclic compounds. So I am going to replace those names (three in total) in the image table using the Hantzsch–Widman nomenclature. --kupirijo (talk) 23:28, 17 March 2011 (UTC)
Hard to understand =
"Heterocyclic compounds can be usefully classified based on their electronic structure. The saturated heterocycles behave like the acyclic derivatives. Thus, piperidine and tetrahydrofuran are conventional amines and ethers, with modified steric profiles. Therefore, the study of heterocyclic chemistry focuses especially on unsaturated derivatives, and the preponderance of work and applications involves unstrained 5- and 6-membered rings. Included are pyridine, thiophene, pyrrole, and furan. Another large class of heterocycles are fused to benzene rings, which for pyridine, thiophene, pyrrole, and furan are quinoline, benzothiophene, indole, and benzofuran, respectively. Fusion of two benzene rings gives rise to a third large family of compounds, respectively the acridine, dibenzothiophene, carbazole, and dibenzofuran. The unsaturated rings can be classified according to the participation of the heteroatom in the pi system."