694-17-7

Usage

InChI:InChI=1/C2F4O/c3-1(4)2(5,6)7-1

Upstream product

• 75-21-8 oxirane 
• 116-14-3 polytetrafluoroethylene 
• 685-63-2 hexafluoro-1,3-butadiene 

Downstream Products

• 50733-60-3 dimethyl 3-oxaperfluorohexanedioate 
• 71997-80-3 5,5-difluoro-2-phenyl-4,4-bis-trifluoromethyl-4,5-dihydro-oxazole 
• 17843-03-7 Difluor-phenylmercapto-thioessigsaeure-S-phenylester 
• 2378-04-3 S-phenyl thiotrifluoroacetate 
• 620-81-5 N,N'-Diphenyloxamid 
• 17843-00-4 phenyl-oxalomonoimidic acid dianilide 
• 383-63-1 ethyl trifluoroacetate, 
• 17843-01-5 diethyl (ethoxycarbonyl)(difluoromethyl)phosphonate 

Relevant academic research and scientific papers

GASEOUS DIELECTRICS WITH LOW GLOBAL WARMING POTENTIALS

A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.

Thermal gas-phase reaction of perfluorobuta-1,3-diene with NO2

The reaction of NO2 with perfluorobuta-1,3-diene, CF2{double bond, long}CFCF{double bond, long}CF2 (C4F6), has been studied at 312.9, 323.0, 333.4, 396.0 and 418.0 K, using a conventional static system. The products formed in the temperature range 312.9-333.4 K were CF2{double bond, long}CFCF(NO2)CF2(NO2) (I), CF2(NO2)CF{double bond, long}CFCF2(NO2) (II), CF2{double bond, long}CFCF(NO2)C(O)F (III) and CF2(NO2)CF{double bond, long}CFC(O)F (IV) and FNO. The formation of these compounds was detected performing infrared and Raman spectra. The infrared spectrum shows a band at 1785 cm-1, characteristic to the terminal -CF{double bond, long}CF2 group and the Raman spectrum shows a band located at 1733 cm-1, corresponding to -CF{double bond, long}CF- group. It indicates, that in this temperature range, NO2 attacks initially only one double bound of CF2{double bond, long}CFCF{double bond, long}CF2. Since the intermediate radical CF2{double bond, long}CFC{radical dot}FCF2(NO2) formed in this process is allylic in nature, so there is no isomerization involved in this process, but rather the allylic radical is able to add the second NO2 either to CF2 or CFCF2(NO2) end, forming the corresponding products. At 396.0 and 418.0 K different products were observed: CF2(NO2)CF(NO2)C(O)F (V), NO, CF3C(O)F, C(O)F2 and traces of epoxide of tetrafluoroethene, showing that, at these temperatures, both double bonds are attacked by NO2 and detachment of CF2 group is produced. The mechanisms consistent with experimental results in the temperature range 312.9-333.4 and at 396.0 and 418 K are proposed.

INVESTIGATIONS IN THE REGION OF INDUSTRIAL FLUORINATED COMPOUNDS

The synthesis and properties of ozone-friendly fluorohydrocarbons, fluoroolefins, and fluorinated compounds with functional groups (acids, alcohols, esters, and others), used for the creation of effective surfactants, ion-exchange membranes for various purposes, heat-resistant oils, and greases, were investigated.A technology was developed for the production of highly pure fluorinated compounds for microelectronics, fiber optics, and medicine.

OZONOLYSIS OF 1,1-DIFLUOROETHYLENE, TRIFLUOROETHYLENE, AND PERFLUOROETHYLENE: MECHANISM OF OZONIDE, EPOXIDE, AND CYCLOPROPANE FORMATION.

In this paper, preliminary studies with the ozonolyses of trifluoroethylene and 1,1-difluoroethylene are extended to low-temperature reaction conditions ( minus 78 and minus 95 C), and a complete product analysis is reported for both olefins. The isolation and identification of two previously unknown cyclopropane isomers, cis- and trans-1,1,2,3-tetrafluorocyclopropane, is discussed. The characterization of an unknown component in the trifluoroethylene ozonolyses as cis-1,2-difluoroethylene ozonide permits a determination of the cis-/trans-1,2-difluoroethylene ozonide ratio in these reactions. Results from aldehyde insertion experiments in the ozonolysis of CH//2 equals CF//2 and CF//2 equals CF//2 are related to the ozonide and epoxide mechanisms.

Kinetics of the Gas-phase Oxidation of Tetrafluoroethylene Initiated by Gamma-quanta in the Presence of Higher Perfluoro-olefins as Catalystinitiator.

This communication deals with the kinetics of the oxidation of tetrafluoroethylene (TFE) initiated by gamma-radiation in the presence of higher perfluoro-olefins (HPFO) under flow conditions.The dependence of the reaction kinetics and of the yield of products on the following experimental conditions has been investigated in detail: the integral radiation dose absorbed by HPFO, contact time, temperature, and TFE mole fraction.The optimum conditions for the synthesis of epoxytetrafluoroethane have been determined.