Acetylacetone is an organic compound with the chemical formula CH3−C(=O)−CH2−C(=O)−CH3. It is classified as a 1,3-diketone. It exists in equilibrium with...

In enzymology, an acetylacetone-cleaving enzyme (EC 1.13.11.50) is an enzyme that catalyzes the chemical reaction pentane-2,4-dione + O2 ⇌ {\displaystyle...

acetaldehyde (K = [enol]/[keto] ≈ 3×10−7). In 1,3-diketones, such as acetylacetone (2,4-pentanedione), the enol form is favored. The acid-catalyzed conversion...

compound with the formula VO(acac)2, where acac– is the conjugate base of acetylacetone. It is a blue-green solid that dissolves in polar organic solvents....

acetylacetone, CH3C(O)CH2C(O)CH3. Dimedone is a cyclic 1,3-diketone. 1,3-Indandione is the cyclic 1,3-diketone fused to a benzene ring. Acetylacetone...

NMR spectrum. For example, the acidic proton in the enol tautomer of acetylacetone appears at ⁠ δ H {\displaystyle \delta _{\text{H}}} ⁠ 15.5, which is...

Pentanedione may refer to: Acetylacetone (2,4-pentanedione) Acetylpropionyl (2,3-pentanedione) C5H8O2 Cyclopentanedione This set index article lists chemical...

Keto-enol tautomerization typically strongly favors the keto tautomer, but an important exception is the case of 1,3-diketones such as acetylacetone....

diacetyl (CH3C(O)C(O)CH3), once used as butter-flavoring in popcorn. Acetylacetone (pentane-2,4-dione) is virtually a misnomer (inappropriate name) because...

is moderately acidic. Thus ethyl acetoacetate behaves similarly to acetylacetone: CH3C(O)CH2CO2C2H5 + NaH → CH3C(O)CHNaCO2C2H5 + H2 The resulting carbanion...

metal salt with acetylacetone, acacH: Mz+ + z Hacac ⇌ M(acac)z + z H+ Addition of base assists the removal of a proton from acetylacetone and shifts the...

water-soluble solid is the conjugate base of acetylacetone. The compound is prepared by deprotonation of acetylacetone: NaOH + CH2(C(O)CH3)2 → NaCH(C(O)CH3)2...

The molecular formula C5H8O2 may refer to: Acetylacetone Acetylpropionyl Allyl acetate Angelic acid Coffee furanone Cyclobutanecarboxylic acid Ethyl acrylate...

colorless liquid is significant commercially as the principal precursor to acetylacetone. In organic synthesis, it is used to prepare enol acetates of ketones...

030.0001. Denoon, C. E. Jr.; Adkins, Homer; Rainey, James L. (1940). "Acetylacetone". Organic Syntheses. 20: 6. doi:10.15227/orgsyn.020.0006. Arpe, Hans-Jürgen...

complex with formula Al(C5H7O2)3. This aluminium complex with three acetylacetone ligands is used in research on Al-containing materials. The molecule...

Alternatively acetamide can be obtained in excellent yield via ammonolysis of acetylacetone under conditions commonly used in reductive amination. It can also be...

enol CF3C(OH)=CHC(O)CF3. For comparison under the same conditions, acetylacetone is 85% enol. Metal complexes of the conjugate base exhibit enhanced...

square pyramidal (acac = acetylacetonate, the deprotonated anion of acetylacetone (2,4-pentanedione)). AXE method Square pyramid Hypervalent molecule...

chemical formula Yb(C5H7O2)3(H2O)2. Its structure is different from the acetylacetone complexes of neodymium, europium and holmium. The adjacent Yb-Yb The...

enol. For comparison under the same conditions, the percent enol for acetylacetone and hexafluoroacetylacetone are 85 and 100%, respectively. Morris, M...

Lamprecht, G.J.; Steynberg, E.C. (1991). "Kinetics of the substitution of acetylacetone in acetylactonato-1,5-cyclooctadienerhodium(I) by derivatives of 1,10-phenantrholine...

"CLXII.—Researches on residual affinity and co-ordination. Part II. Acetylacetones of selenium and tellurium". Journal of the Chemical Society, Transactions...

cyclohexanone, phenylacetic acid and its derivatives and diphenylmethane. Acetylacetone loses two protons to form a dianion. Sodium amide will also deprotonate...

results from treatment of titanium tetrachloride with excess acetylacetone: TiCl4 + 2 Hacac → Ti(acac)2Cl2 + 2 HCl Organic amines react with TiCl4...

of 1,3-diketones with hydrazine (Knorr-type reactions). For example, acetylacetone and hydrazine gives 3,5-dimethylpyrazole: CH3C(O)CH2C(O)CH3   +   N2H4...

= 4.01) even for a diketone species (cf. dimedone with pKa 5.23 and acetylacetone with pKa 8.95) because of the additional aromatic stabilization of the...

hydrocarbons. The complex is prepared by treating zirconium oxychloride with acetylacetone: ZrOCl2 + 4 Hacac → Zr(acac)4 + 2 HCl + H2O The complex has a square...

"La(acac)3". It can be prepared by the reaction of lanthanum alkoxide and acetylacetone. Its tetrahydrate decomposes into monohydrate at 110 °C, obtains the...

The compound is prepared by the condensation of two equivalents of acetylacetone and phosphine: PH3 + 2 CH3C(O)CH2C(O)CH3 → HP(CH3CCH2CCH3)2O3 + H2O...