Chinese name: trifluoroacetone


Chinese alias: 1,1, 1-trifluoro-2, 4-pentanedione; 1,1, 1-trifluoroacetyl acetone

English name: Trifluoroacetylacetone

English alias: 1,1,1- Trifluoroacetylone; 1,1,1 - trifluoropentane - 2, 4 - dione. 5,5,5 - trifluoro - 4 - hydroxypent - 3 - en - 2 - one; butyl 2,2,2-trifluoroacetate


Product specification: ≥98%


CAS № : 367-57-7


Molecular formula: C5H5F3O2


Structural formula:



Physical and chemical properties: colorless transparent liquid


Main uses: pharmaceutical pesticide intermediates


Density: 1.153g/cm3


Melting point: - Boiling point: 100.7°C at 760 mmHg


Flash point: - Vapor pressure: 36.3mmHg at 25°C


Product use: pharmaceutical intermediate


Dangerous goods Mark: -


Risk terminology: R10:Flammable.


R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.  Harmful by inhalation, in contact with skin and if swallowed.


R36/37/38:Irritating to eyes, respiratory system and skin.  Irritates the eyes, respiratory system and skin. ;


Security terms: S16:Keep away from sources of ignition. Keep away from fire.


S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.


S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. Wear appropriate protective clothing, gloves, and goggles or masks.




Application of trifluoroacetone


Trifluoroacetone belongs to the trifluoromethyl ketone group, an important organic intermediate. Its unique properties in structure and biology make it play an important role in organic chemistry, analytical chemistry, coordination chemistry, material chemistry and biochemistry.




1. Synthesis of pharmaceutical intermediates


Synthesis of drugs that inhibit the activity of histone deacetylase (HDAC) and cyclin dependent kinase (CDK).


② The synthesis of pyrazole containing trifluoromethyl can selectively inhibit epoxidase, treat diabetes, and have antibacterial effect. For example, 3-trifluoromethylpyrazole sulfonamide compounds, after preliminary testing of the biological activity of these compounds, they were found to have significant effects on lowering blood sugar and antibacterial.


③ For the preparation of new antimalarial drugs: the synthesis of 5-aryl-8-aminoquinoline compounds can retain the activity of tifulaquine and avoid hemolytic toxicity in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency.




2. Preparation of fluorine-containing chemical reagents


① For the synthesis of cyclobutene derivatives containing trifluoromethyl groups.


② For the synthesis of (E) -α, β-unsaturated ketone, this substance is an excellent reaction block in organic synthesis, widely used in aldehyde involved in Wttig reaction and the synthesis of various natural products.


③ Used for asymmetric synthesis of trifluoromethyl substituted dihydropyran compounds containing 3 chiral centers.


④ For the preparation of 2,3,3, 3-tetrafluoropropylene.




3. Prepare metal chelates


It is used to prepare single-dimensional polycyclic complex La (TFA) 3(bipyN2O2).


② is used to prepare the coordination compound [In(4, 6-Mecf3PyMth)3]·H2O.


③ It can be used to prepare β-diketone copper (Ⅱ) chelate Cu(TFA)2.




4. Make luminous materials


① Prepared the complexes Eu2(TFA)6·(dmn) and Tb2(TFA)6 ·(dmn), dmn is 2, 6-dimethylmorpholine, these two complexes have good luminescence properties, and have the possibility of preparing fluorescent materials.


② Used for the synthesis of rare earth luminescent complexes, such as rare earth β-diketone functionalized nonlinear optical composites.


③ For the preparation of europium (Eu) and terbium (Tb) trifluoroacetone, triphenylphosphine oxide (TPPO) terpolymer Eu(TFA)3(TPPO)2 and Tb(TFA)3(TPPO)2, which can be used to produce high-brightness panchromic luminescent anti-counterfeiting labels.




5, applied to metal coating


① Synthesis of indium-source reagent complex (β-dione) InR(R is an alkyl group), which can be used to introduce indium in the structure of microelectronic devices, and can be used to generate indium-containing coatings.


② It is used to prepare active bismuth trifluoroacetone chelate and manufacture thin film.


(3) BYD Co., Ltd. invented a plastic composition and plastic surface metallization method, the plastic composition contains a plastic matrix resin and metal chelate; Organic chelating agents can be selected as diketones such as trifluoroacetone, carboxylic acids or nitrogen-containing heterocyclic compounds.




6, applied to analytical chemistry


① For amino acid analysis: Using trifluoroacetone and ethyl chloroformate as amino acid derived reagents, GC (gas chromatography) was used to analyze amino acids in skin samples of patients with psoriasis and arsenic poisoning.


② Gadolinium (Gd) in rare earth elements can be quantitatively determined by trifluoroacetone as a ligand fluorescence method, gadolinium - trifluoroacetone also has a luminous effect.


③ Some series of chelating reagents can be prepared by trifluoroacetylacetone and diamine compounds: trifluoroacetylacetone ethylenediamine, trifluoroacetylacetone propylenediamine and trifluoroacetylacetone ethylenediamine. These chelating agents can be combined with copper acetate or nickel acetate to produce complexes which are stable in the gas phase and have good symmetry of chromatographic peaks. For the β-diketone chelates of aluminum, gallium, indium and other metal elements, the presence of trifluoromethyl makes these metal chelates more active than ordinary β-diketone metal chelates, but the retention time on the gas chromatography is relatively longer. Fifty-five classes of β-ketone uranium chelates were prepared, including UO2 (TFA) 2Py prepared with trifluoroacetone as chelating agent.




7. Other applications


In solvent extraction, trifluoroacetone, as a chelate extractant, can effectively extract a variety of common metal ions. For example, in a method of preparing near-infrared sensing materials from industrial waste liquid containing nickel and aluminum, the metal substance is extracted by trifluoroacetyl acetone chelation.