Hydroxy ketone: Difference between revisions
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[[Image:Hydroxyketone.svg|right|Hydroxy ketones]] |
[[Image:Hydroxyketone.svg|right|Hydroxy ketones]] |
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In [[organic chemistry]] a '''hydroxy ketone''' (often referred to simply as a '''ketol''') is a [[functional group]] consisting of a [[ketone]] flanked by a [[alcohol|hydroxyl]] group. In the two main classes the hydroxyl group can be placed in the alpha position (an alpha-hydroxy ketone RCR'(OH)(CO)R) or in the beta position (a beta-hydroxy ketone, RCR'(OH)CR<sub>2</sub>(CO)R). |
In [[organic chemistry]] a '''hydroxy ketone''' (often referred to simply as a '''ketol''') is a [[functional group]] consisting of a [[ketone]] flanked by a [[alcohol|hydroxyl]] group. In the two main classes, the hydroxyl group can be placed in the [[alpha and beta carbon|alpha position]] (an alpha-hydroxy ketone RCR'(OH)(CO)R) or in the beta position (a beta-hydroxy ketone, RCR'(OH)CR<sub>2</sub>(CO)R). |
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* An '''alpha-hydroxy ketone''' can consist of either a [[primary alcohol]] (e.g. [[hydroxyacetone]]) or a secondary alcohol; the later are often broadly referred to as [[acyloin]]s<ref>{{GoldBookRef|title=acyloins|file=A00126}}</ref> |
* An '''alpha-hydroxy ketone''' can consist of either a [[primary alcohol]] (e.g. [[hydroxyacetone]]) or a secondary alcohol; the later are often broadly referred to as [[acyloin]]s<ref>{{GoldBookRef|title=acyloins|file=A00126}}</ref> |
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* Prominent '''beta-hydroxy ketones''' are [[aldol adduct]]s. |
* Prominent '''beta-hydroxy ketones''' are [[aldol adduct]]s. |
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Revision as of 20:05, 2 July 2015
In organic chemistry a hydroxy ketone (often referred to simply as a ketol) is a functional group consisting of a ketone flanked by a hydroxyl group. In the two main classes, the hydroxyl group can be placed in the alpha position (an alpha-hydroxy ketone RCR'(OH)(CO)R) or in the beta position (a beta-hydroxy ketone, RCR'(OH)CR2(CO)R).
- An alpha-hydroxy ketone can consist of either a primary alcohol (e.g. hydroxyacetone) or a secondary alcohol; the later are often broadly referred to as acyloins[1]
- Prominent beta-hydroxy ketones are aldol adducts.
References
- ^ IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "acyloins". doi:10.1351/goldbook.A00126