Summary: hydroxycarbonyl compounds

\nEndioly are blistering and alkaline forte in flavour form, called reduktonatami. Reduktonaty are self-coloured reducing agents, notwithstanding in line of merchandise to just-hydroxy ketones ketones having reducing properties, match with Fehlings reagent. In doing so, they are oxidized to 1,2-dicarbonyl compounds.\n hallmark of 1,4 - and 1,5-hydroxycarbonyl compounds is oxo-cyclo tautomerism (ring-chain tautomerism), leading to the fundamental law of cyclic hemiacetals, the hydroxyl radical group digest occupy two axial and equatorial position.\nThe chemical properties of 1,3-dicarbonyl compounds are largely inflexible keto-enol tautomerism. 1,3-dicarbonyl compounds are to a greater extent potent C-H acids than childlike aldehydes and ketones. For example, acetylacetone (pKa = 9,0) and soluble in alkalis is reacted with sodium henry evolution. With heavy coat salts of 1,3-dicarbonyl compounds to form actually stable chelated complexes soluble in organic solvents a nd distilled without dissolution at mean(prenominal) pressure.