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About: Oxocarbenium     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatReactiveIntermediates, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:Abstraction100002137yago:Chemical114806838yago:Intermediate114921272yago:Material114580897yago:Matter100020827yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921yago:Substance100019613yago:WikicatReactiveIntermediates New Facet based on Instances of this Class

An oxocarbenium ion (or oxacarbenium ion) is a chemical species characterized by a central sp2-hybridized carbon, an oxygen substituent, and an overall positive charge that is delocalized between the central carbon and oxygen atoms. An oxocarbenium ion is represented by two limiting resonance structures, one in the form of a carbenium ion with the positive charge on carbon and the other in the form of an oxonium species with the formal charge on oxygen. As a resonance hybrid, the true structure falls between the two. Compared to neutral carbonyl compounds like ketones or esters, the carbenium ion form is a larger contributor to the structure. They are common reactive intermediates in the hydrolysis of glycosidic bonds, and are a commonly used strategy for chemical glycosylation. These ions