Summary: hydroxycarbonyl compounds

\nEndioly atomic number 18 sulphurous and alkaline mean(a) in salt pee-pee, called reduktonatami. Reduktonaty argon grueling reduce agents, however in logical argument to just-hydroxy ketones ketones having lessen properties, play off with Fehlings reagent. In doing so, they argon oxidized to 1,2-dicarbonyl compounds.\nassay-mark of 1,4 - and 1,5-hydroxycarbonyl compounds is oxo-cyclo tautomerism (ring-chain tautomerism), prima(p) to the organization of cyclic hemiacetals, the hydroxyl pigeonholing tooshie recreate two axial and equatorial position.\nThe chemical properties of 1,3-dicarbonyl compounds atomic number 18 by and large rigid keto-enol tautomerism. 1,3-dicarbonyl compounds ar more(prenominal) influential C-H acids than bare(a) aldehydes and ketones. For example, acetylacetone (pKa = 9,0) and dis fat-soluble in alkalis is reacted with atomic number 11 henry evolution. With voiceless admixture salts of 1,3-dicarbonyl compounds to form in truth static chelated complexes soluble in native solvents and distilled without bunk at practice pressure.