354-34-7Relevant articles and documents
Cryoozonolysis of some perfluoroolefins and use of perfluoro ozonides as polymerization initiators
Kiryukhin,Barkalov,Ismoilov
, p. 1740 - 1743 (2001)
Low-temperature (77-280 K) ozonolysis of perfluoro-4-methyl-2-pentene and perfluoro-2,4-dimethyl-3-ethyl-2-pentene by direct contact with ozone in the absence of solvents and oxygen was studied. The resulting perfluoro ozonides can be used as initiators o
The Reaction of Vanadium Pentafluoride with Phosphorus Oxytrifluoride and with Trifluoroacetic Acid
Fowler, Brian R.,Moss, Kenneth C.
, p. 67 - 74 (1980)
Vanadium pentafluoride reacts via an oxygen exchange reaction with phosphorous oxytrifluoride to give VOF3 and PF5.The latter forms a weak 1:1 adduct.VF5 reacts with trifluoroacetic acid to form trifluoroacetyl fluoride and VOF3.Both reactions are indicative of the strength of the V=O bond and its influence on the course of the reactions of VF5 with oxygen containing materials.
THE ELECTROCEHIMCAL FLUORINATION OF ACETYL FLUORIDE
Wasser, D. J.,Johnson, P. S.,Klink, F. W.,Kucera, F.,Liu, Chung-Chiun
, p. 557 - 570 (1987)
The electrochemical fluorination of acetyl fluoride in anhydrous hydrogen fluoride to produce trifluoroacetyl fluoride was investigated in a microprocessor-aided modified Simons' reactor.The product was recorvered in acetic as trifluoroacetic acid.The experiments were carried out at a controlled anodic potential using a Cu/CuF2 reference electrode.Product yields of 36-45percent, current efficiencies of 30 to 50percent and energy efficiencies of 11-23percent were obtained.Experimental results of this investigation are presented and discussed.
Blake,Pritchard
, p. 282,283 (1967)
van der Puy
, p. 375,376 (1979)
Young et al.
, p. 723 (1969)
Perfluoroalkyl ether as well as preparation and application thereof
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Paragraph 0054-0058, (2020/12/15)
The invention relates to perfluoroalkyl ether as well as a preparation method and application thereof, wherein the preparation method specifically comprises the steps: taking perfluoroalkyl acyl fluoride and fluorinated metal salt as raw materials, and carrying out a reaction with a halogenated alkane substrate in the presence of a halogenated metal catalyst to obtain a target product perfluoroalkyl ether compound. Compared with the prior art, the method has the advantages that the synthesis process is simple and green, excellent selectivity and high yield are achieved, meanwhile, the perfluoroalkoxylation reagent and raw materials are cheap and easy to obtain, reaction conditions are mild, operation is easy, cost is low, popularization is easy, and the method is suitable for mass production; in addition, the method provided by the invention can be used for conveniently and efficiently preparing a plurality of novel alkoxy silanes of perfluoropolyether which can be applied to anti-fingerprint coatings.
Perfluoroacetyl fluoride and preparation method thereof
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Paragraph 0019; 0020; 0021; 0022, (2017/07/22)
The invention belongs to the technical field of fluorine fine chemical industry, and particularly relates to perfluoroacetyl fluoride and a preparation method thereof. The preparation method is as follows: trifluoroacetic anhydride is used as a material, and under the actions of alkali metal fluoride and organic alkali, a reaction is performed in an aprotic solvent to obtain the perfluoroacetyl fluoride. In the preparation process of the perfluoroacetyl fluoride, the trifluoroacetic anhydride is used as a starting reactant, and under the actions of catalysts, high-value chemical intermediate perfluoroacetyl fluoride is produced; the product yield is high, the raw material cost is low, the reaction condition is mild, the reaction process is simple in operation, the purification process is simple, the product purity is 99% or higher, and large-scale industrial production is easy.
Atmospheric chemistry of CF3CF2CHO: Absorption cross sections in the UV and IR regions, photolysis at 308 nm, and gas-phase reaction with OH radicals (T = 263-358 K)
Antinolo, Maria,Jimenez, Elena,Gonzalez, Sergio,Albaladejo, Jose
, p. 178 - 186 (2014/02/14)
The relative importance in the atmosphere of UV photolysis of perfluoropropionaldehyde, CF3CF2CHO, and reaction with hydroxyl (OH) radicals has been investigated in this work. First, the forbidden n → π* transition of the carbonyl chromophore was characterized between 230 and 380 nm as a function of temperature (269-298 K) and UV absorption cross sections, σλ, were determined in those ranges. In addition, IR absorption cross sections were determined between 4000 and 500 cm-1. Pulsed laser photolysis (PLP) of CF3CF 2CHO coupled to Fourier transform infrared (FTIR) was employed to determine the overall photolysis quantum yield, Φλ, at 308 nm and 298 K. Φλ=308 nm was pressure dependent, ranging from (0.94 ± 0.14) at 75 Torr to (0.30 ± 0.01) at 760 Torr. This dependence is characterized by the Stern-Volmer parameters Φλ=308 nm0 = (1.19 ± 0.34) and KSV = (1.22 ± 0.52) × 10-19 cm3 molecule-1. End products of the photodissociation of CF3CF2CHO were measured and quantified by FTIR spectroscopy. Furthermore, the rate coefficients for the OH + CF3CF2CHO reaction, k1, were determined as a function of temperature (T = 263-358 K) by PLP-LIF. At room temperature the rate coefficient is k1(T = 298 K) = (5.57 ± 0.07) × 10 -13 cm3 molecule-1 s-1, whereas the temperature dependence is described by k1(T) = (2.56 ± 0.32) × 10-12 exp{-(458 ± 36)/T} cm3 molecule -1 s-1. On the basis of our results, photolysis of CF 3CF2CHO in the actinic region could be an important removal process for CF3CF2CHO in the atmosphere. The formation of the primary products in the UV photolysis of CF3CF 2CHO is also discussed.
