Dehydro
In chemical nomenclature , the prefix Dehydro- is used to indicate that intramolecular hydrogen (H 2 ) has been split off from a parent compound and that its designation (= name) has to be added accordingly.
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Dehydro- example: ascorbic acid |
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Examples
If hydrogen (H 2 ) is split off from the parent compound at two hydroxyl groups , a diketone is formed. Then use the subtraction prefix “Dehydro-” to describe it.
Ascorbic acid
An example is the formation of the diketone dehydro- L -ascorbic acid from L-ascorbic acid.
Cholic acid
The three alcoholic hydroxyl groups of cholic provide elimination of three equivalents of hydrogen (H 2 ) dehydro cholic acid .
Individual evidence
- ↑ a b Philipp Fresenius and Klaus Görlitzer: Organic-chemical nomenclature , Wissenschaftliche Verlagsgesellschaft Stuttgart, 1991, 3rd edition, p. 139, ISBN 3-8047-1167-7 .