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Acetylacetone (2,4-pentanedione) Acetylpropionyl (2,3-pentanedione) See also. C 5 H 8 O 2; Cyclopentanedione This page was last edited on 15 March ...
Acetone and acetic anhydride ((CH 3 C(O)) 2 O) upon the addition of boron trifluoride (BF 3) catalyst: [11] (CH 3 C(O)) 2 O + CH 3 C(O)CH 3 → CH 3 C(O)CH 2 C(O)CH 3 A second synthesis involves the base-catalyzed condensation (e.g., by sodium ethoxide CH 3 CH 2 O − Na + ) of acetone and ethyl acetate , followed by acidification of the sodium ...
Acetylpropionyl, also known as acetyl propionyl or 2,3-pentanedione, [1] is an organic compound, specifically a diketone. [2] Uses for acetylpropionyl include as a: Solvent for cellulose acetate, paints, inks, and lacquers; Starting material for dyes, pesticides, and drugs
Pentane is an organic compound with the formula C 5 H 12 —that is, an alkane with five carbon atoms. The term may refer to any of three structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, pentane means exclusively the n-pentane isomer, in which case pentanes refers to a mixture of them; the other two are called isopentane (methylbutane) and neopentane ...
For example, C(CH 3) 4 (neopentane) is named 2,2-dimethylpropane. If there are different groups, they are added in alphabetical order, separated by commas or hyphens. The longest possible main alkane chain is used; therefore 3-ethyl-4-methylhexane instead of 2,3-diethylpentane, even though these describe equivalent structures.
The simplest is diacetyl (CH 3 C(O)C(O)CH 3), once used as butter-flavoring in popcorn. Acetylacetone (pentane-2,4-dione) is virtually a misnomer (inappropriate name) because this species exists mainly as the monoenol CH 3 C(O)CH=C(OH)CH 3. Its enolate is a common ligand in coordination chemistry.
In enzymology, an acetylacetone-cleaving enzyme (EC 1.13.11.50) is an enzyme that catalyzes the chemical reaction. pentane-2,4-dione + O 2 acetate + 2-oxopropanal. Thus, the two substrates of this enzyme are pentane-2,4-dione and O 2, whereas its two products are acetate and 2-oxopropanal.
More common is the dimethyl derivative 2,4-Me 2 C 5 H 5. Additionally, many pentadienyl ligands are cyclic, being derived from the addition of hydride to η 6 -arene complexes or hydride abstraction from cyclohexadiene complexes.