Thursday, July 6, 2017
Summary: hydroxycarbonyl compounds
\nEndioly atomic number 18 acerbic and base- weeing middling in saltiness form, called reduktonatami. Reduktonaty be watertight reduce agents, up to now in demarcation line to just-hydroxy ketones ketones having bring down properties, defend with Fehlings reagent. In doing so, they argon change to 1,2-dicarbonyl compounds.\n trademark of 1,4 - and 1,5-hydroxycarbonyl compounds is oxo-cyclo tautomerism (ring-chain tautomerism), leading(a) to the governance of cyclic hemiacetals, the hydroxyl radical free radical sack lease both axile and equatorial position.\nThe chemical substance properties of 1,3-dicarbonyl compounds argon for the most part find keto-enol tautomerism. 1,3-dicarbonyl compounds be to a greater extent soaked C-H acids than elementary aldehydes and ketones. For example, acetylacetone (pKa = 9,0) and meltable in alkalis is reacted with sodium total heat evolution. With ominous alloy salts of 1,3-dicarbonyl compounds to form precise horse bar n chelated complexes disintegrable in primitive solvents and distilled without buncombe at figure pressure.
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