359-11-5

Usage

Uses

Low toxicity by inhalation.

Safety Profile

Low toxicity by inhalation. Whenheated to decomposition it emits toxic vapors of F??.

InChI:InChI=1/C2HF3/c3-1-2(4)5/h1H

Upstream product

• 420-92-8 1-bromo-1,1,2-trifluoro-ethane 
• 354-51-8 1,2-dibromo-1-chloro-1,2,2-trifluoroethane 
• 79-38-9 Chlorotrifluoroethylene 
• 598-73-2 1-bromo-1,2,2-trifluoroethene 
• 74-86-2 acetylene 
• 503-17-3 dimethylacetylene 
• 371-67-5 2,2,2-trifluorodiazoethane 
• 74-85-1 ethene 
• 110-83-8 cyclohexene 
• 513-35-9 2-methyl-but-2-ene 
• 4168-07-4 (1,1,2,2-tetrafluoroethyl)trifluorosilane 
• 563-79-1 2,3-Dimethyl-2-butene 
• 354-33-6 1,1,1,2,2-pentafluoroethane 
• 354-23-4 1,2-dichloro-1,2,2-trifluoroethane 

Downstream Products

• 384-49-6 3H-hexafluoro-4-iodo-but-1-ene 
• 354-23-4 1,2-dichloro-1,2,2-trifluoroethane 
• 354-04-1 1,2-dibromo-1,1,2-trifluoroethane 
• 354-26-7 1-chloro-2-iodo-1,1,2-trifluoroethane 
• 359-25-1 bromo-fluoroacetic acid 
• 53063-53-9 2-Hydryl-1,1,3-trichloro-tetrafluorpropan 
• 53063-52-8 1,1,1-trichloro-2,3,3,3-tetrafluoro-propane 
• 422-60-6 1,1,1,2,2,3-hexafluoro-3-iodo-propane 
• 431-90-3 1,1,1,2,3,3-Hexafluor-3-iodpropan 
• 55260-69-0 1,2-Dichlor-1,1,2,3,3,4,4,5,6,6-decafluor-6-iodhexan 
• 55260-70-3 1,2-Dichlor-1,1,2,3,3,4,4,5,5,6-decafluor-6-iodhexan 
• 433-68-1 trifluoroacrylic acid 
• 2267-65-4 phenyl 1,2,2,2,-tetrafluoroethyl ketone 
• 60985-03-7 1-Nitro-3-(1,1,2-trifluoro-ethoxy)-benzene 

Relevant academic research and scientific papers

Infrared multiphoton dissociation of CBrF2CHClF, CBrF2CHBrF, and CBrClFCBrF2 in a molecular beam

Dynamics and mechanisms of infrared multiphoton dissociation of CBrF2CHClF, CBrF2CHBrF, and CBrClFCBrF2 have been studied using a photofragmentation translational spectroscopy.All molecules dissoociated through C-Br bond rupture reactions.At high laser fluence, the halogenated ethyl radicals produced by the primary dissociation reactions dissociated through carbon-halogen bond ruptures.Center-of-mass product translational energy distributions for the C-Br and C-Cl bond ruptures of all halogenated ethanes and ethyl radicals studied are essentially consistent with those calculated by Rice-Ramsperger-Kassel-Marcus (RRKM) theory.This indicates that there exists essentially no exit channel barrier on the potential energy surface for the C-Br or C-Cl bond rupture of the halogenated ethanes and ethyl radicals.

High-vacuum pyrolysis of 1,1,1-trifluoro-2-bromo-2-chloroethane. IR spectrum of 1,1,1-trifluoro-2-chloroethyl radical in an argon matrix

The products of high-vacuum pyrolysis of 1,1,1-trifluoro-2-bromo-2-chloroethane were studied by matrix IR spectroscopy. The decomposition of 1,1,1-trifluoro-2-bromo-2-chloroethane was shown to occur predominantly via two directions: to form the 1,1,1-trifluoro-2-chloroethyl radical and trifluoromethylcarbene isomerizing to trifluoroethylene. The CF3CHCl radical has been detected in the matrix for the first time. The bands observed in the IR spectrum were calculated by the quantum-chemical B3LYP/6-311G(d,p) method and assigned to normal vibrations of the radical.

Telomerization of perfluoropoly(oxamethylene iodides) with trifluoroethylene

Radical telomerization of perfluoropoly(oxamethylene iodides) with trifluoroethylene was studied. Based on the 1H and 19F NMR spectroscopic data, the pathways for olefin addition to the iodide in the initial and subsequent stages were examined.

Effect of calcination temperature and fluorination treatment on NiF2-AlF3 catalysts for dehydrofluorination of 1, 1, 1, 2-tetrafluoroethane to synthesize trifluoroethylene

High-performance NiF2-AlF3 fluoride catalysts for the catalytic dehydrofluorination of 1, 1, 1, 2-tetrafluoroethane (CF3CH2F) were prepared by impregnation and fluorination methods. The effect of calcination temperature and vapor-phase fluorination on the properties of NiF2-AlF3 catalysts were investigated by BET, SEM, XRD, UV-DRS, Raman, IR, TG and XPS. By increasing the calcination temperature, the NiO species diffused from the surface into the inside bulk phase of the alumina support and the inverse spinel NiAl2O4 was formed at a calcination temperature up to 600 °C. Vapor-phase fluorination can improve the stability of the catalytic dehydrofluorination. The unfluorinated NiAl2O4 affected the surface area and acidity of NiF2-AlF3 catalyst. The acid sites of catalysts were investigated by py-IR, disclosing that the affinity of Lewis acid sites toward activity of catalysts. In addition, it was found that the weak and medium Lewis acid sites derived from NiF2-AlF3 complex phase are active centers for catalyzing dehydrofluorination of CF3CH2F to trifluoroethylene (CF2=CHF). The highest activity was obtained over a fluorinated catalyst calcined at 500 °C, with a reaction rate of 2.13 mmol min?1 gcat.?1 and a trifluoroethylene selectivity of 99%, highlighting a good prospect for the commercial application.

Selective liquid-phase hydrodechlorination of chlorotrifluoroethylene over palladium-supported catalysts: Activity and deactivation

Liquid-phase hydrodechlorination of chlorotrifluoroethylene (CTFE) to trifluoroethylene (TrFE) with molecular hydrogen was studied over palladium-supported catalysts. BaSO4, Al2O3 and activated carbon (AC) were used as supports, respectively. The results showed that the Pd/AC catalysts exhibit higher activity than Pd/BaSO4 and Pd/Al2O3. The treatment of activated carbon with HNO 3 led to a considerable increase of surface functional groups containing oxygen atoms, which resulted in a higher dispersion of palladium on the supports and enhancement of catalytic activity. The stability of the catalyst was investigated, one reason for the inhibition was the accumulation of NaCl on the surface of Pd/AC that blocks the pores of carbon support. The activity of Pd/AC could partially recovered by washing with water. The other irreversible deactivation of the catalyst are from the change of particle size and the pore structure, leaching of Pd, a decrease of BET surface area and Pd surface area of Pd/AC catalyst.

19F and 27Al MAS NMR Study of the Dehydrofluorination Reaction of Hydrofluorocarbon-134 over Basic Faujasite Zeolites

Dehydrofluorination of hydrofluorocarbon-134 (CF2HCF2H) occurs over the basic zeolite NaX at 275 deg C, to produce HFC-1123 (CF2CFH) and tetrahedrally-coordinated aluminum fluoride species.Under moist conditions, the tetrahedral aluminum fluoride species are hydrolyzed and six-coordinate species are formed.The framework of the less basic zeolite NaY is not attacked by HFC-134 under similar conditions.

Catalytic dehydrofluorination of 1,1,1,2-tetrafluoroethane to synthesize trifluoroethylene over a modified NiO/Al2O3 catalyst

A promising fluorinated NiO/Al2O3 catalyst for synthesizing trifluoroethylene through the catalytic dehydrofluorination of CF3CFH2 was prepared, and the relationship between the Lewis acid sites and activity was investigated. 20.1% conversion of CF3CFH2 was observed, and the selectivity to trifluoroethylene was observed to be 99% at 430°C after 100 h.

Influence of Lewis Acidity on Catalytic Activity of the Porous Alumina for Dehydrofluorination of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene

The porous alumina catalysts with different acidity were prepared and tested for dehydrofluorination of 1,1,1,2-tetrafluoroethane to synthesize trifluoroethylene. The XRD, BET, SEM, NH3-TPD and py-IR techniques were used to characterize the alumina catalysts with different calcination temperatures. The porous θ-Al2O3 showed the excellent catalytic performance, with 35.1 % conversion and the selectivity to trifluoroethylene of 99.0 %. The active sites of catalysts for formation of trifluoroethylene are appropriate weak Lewis acid sites, and the strong Lewis acid sites may result in its rapid deactivation, due to the coke or polymerization of trifluoroethylene. Graphical Abstract: Dehydrofluorination of 1,1,1,2-tetrafluoroethane (CF3CFH2) is a promising route to synthesize trifluoroethylene over θ-Al2O3, the conversion is 35.1 % and the selectivity to trifluoroethylene is 99 % at 450°C. It was suggested that appropriate number of weak Lewis acid sites was beneficial to the catalysis for dehydrofluorination of CF3CFH2, the weak Lewis acid sites as the active sites of synthesis of trifluoroethylene. On the other hand, the strong Lewis acid sites easily result in deactivation of catalysts derived from the coke or polymerization of trifluoroethylene.[Figure not available: see fulltext.]

Synthetic method of ethyl 4, 4-difluoro-3-oxo-2-piperidine-1-yl methylene butyrate

The invention relates to a synthetic method of ethyl 4, 4-difluoro-3-oxo-2-piperidine-1-methylene butyrate. The synthetic method comprises the following steps: 1, carrying out a condensation reactionon difluoroacetyl fluoride and 3-(1-piperidyl)-ethyl acrylate to generate 4, 4-difluoro-3-oxo-2-piperidine-1-yl methylene ethyl butyrate and hydrogen fluoride, and 2, carrying out a reaction on the hydrogen fluoride generated in the step 1 and trichloroethylene under the action of a fluorination catalyst to generate trifluoroethylene and hydrogen chloride, and 3, reacting the trifluoroethylene generated in the step 2 with oxygen under the action of a complex catalyst to generate difluoroacetyl fluoride, and recycling the difluoroacetyl fluoride generated in the step 3 as a reactant in the step1. According to the synthetic method of the ethyl 4, 4-difluoro-3oxo-2-piperidine-1-methylene butyrate, the raw materials are simple and easy to obtain, the atom utilization rate is high, and the production safety is high.

Gas phase process for chlorotrifluoroethylene

Disclosed are processes for the dechlorination of haloethanes comprising reacting in the gaseous phase a haloethane and reducing agent such as an alkene, an alkane, hydrogen or combinations of two or more of these, in the presence of a silicon-based catalyst.