Colorless Liquid Acetylacetone/2,4-Pentanedione 99.7%

الوصف

  Acetylacetone(2,*-Pentanedione)/ CAS No.*******6
  Acetylacetone is an organic compound that exists in two tautomeric forms that interconvert rapidly. The pair of tautomers rapidly interconverts and is treated as a single compound in most applications. Although the compound is formally named as the diketone form, pentane*2, *-dione, the enol form forms a substantial component of the material and is actually the favored form in many solvents. It is a colourless liquid that is a precursor to acetylacetonate (acac), a common bidentateligand. It is also a building block for the synthesis of heterocyclic compounds.
   The keto and enol forms of acetyl acetone coexist in solution; these forms are tautomers. The enol form has C2v symmetry, meaning the hydrogen is shared equally between the two oxygen atoms. In the gas phase, the equilibrium constant, favoring the enol form. The two tautomeric forms can easily be distinguished by NMR spectroscopy, IR spectroscopy, and other methods.
   The equilibrium constant tends to remain high in nonpolar solvents; the keto form becomes more favorable in polar, hydrogen-bonding solvents, such as water. The enol form is a vinylogous analogue of a carboxylic acid.