684-22-0

Upstream product

• 360-53-2 1,3,3,3-tetrafluoro-1-methoxy-2-trifluoromethyl-propene 
• 2834-21-1 hexafluoro-3-diazo-2-butanone 
• 201230-82-2 carbon monoxide 
• 692-50-2 hexafluoro-2-butyne 
• 7445-60-5 bis(trifluoromethyl)thioketene 
• 1569-76-2 N-methoxy-α-phenylnitrone 
• 116-14-3 polytetrafluoroethylene 
• 36638-46-7 4-hexafluoroisopropylidene-1,3,2-dioxathietane 2,2-dioxide 

Downstream Products

• 56300-68-6 Aceton-N-α-hydrohexafluorisobutyroylhydrazon 
• 360-54-3 methyl 2-(trifluoromethyl)-3,3,3-trifluoropropionate 
• 25636-96-8 2,2-Bis(trifluormethyl)-3-p-anisyl-cyclobutanon 
• 25631-76-9 3-(4-Chloro-phenyl)-4,4-bis-trifluoromethyl-cyclobut-2-enone 
• 51254-13-8 N-Methyl-N-<3,3,3-trifluor(2-trifluormethyl)propionylbenzamid 
• 20336-17-8 Hexafluorisobutyroyldimethylphosphin 
• 4141-80-4 2,2-Bis(trifluormethyl)-3-benzoyloxy-cyclobutanon 
• 62626-95-3 3,3,3-Trifluoro-2-trifluoromethyl-propionic acid (Z)-4-phenyl-pent-3-enyl ester 
• 24337-48-2 6-phenyl-4,4-bis-trifluoromethyl-2-(2,2,2-trifluoro-1-trifluoromethyl-ethylidene)-4H-[1,3,5]dioxazine 
• 63284-90-2 3,3,3-Trifluoro-2-trifluoromethyl-propionic acid 2,3,3,4,4,5,5,6,6-nonafluoro-cyclohex-1-enyl ester 
• 67845-11-8 (3aS)-4t-(4-methoxycarbonyl-butyl)-2-oxo-3-(3,3,3-trifluoro-2-trifluoromethyl-propionyl)-(3ar,6ac)-hexahydro-thieno[3,4-d]imidazole-1-carboxylic acid methyl ester 
• 382-19-4 3,3,3-trifluoro-2-trifluoromethylpropionyl chloride 
• 13222-45-2 1,1,1,5,5,5-hexafluoro-2,4-bis-trifluoromethyl-penta-2,3-diene 
• 5548-90-3 1-ethoxy-5,5,5-trifluoro-4-trifluoromethyl-pent-1-en-3-one 

Relevant academic research and scientific papers

Photolysis of hexafluoro-2-butyne/ozone mixtures in cryogenic matrices

Matrix studies on the photolytic reaction between ozone and hexafluoro-2-butyne have been performed at 11 K in argon and nitrogen matrices. The matrices were photolyzed with 640 and 642 nm light from a laser source, and with 254 nm light from a Hg arc lamp. The final products of the reaction are perfluorobutanedione and bis(trifluoromethyl)ketene. An intermediate species was also observed. It has been identified as perfluoroacetylmethylmethylene, a ketocarbene. The ketocarbene was also trapped as trifluoromethyl trifluoroacetylketene, a ketoketene, when the matrix was doped with CO. Photolysis of the ketocarbene with 427 nm light results in the direct formation of the ketene. The ketocarbene and ketene form as a result of O atom addition to the butyne, whereas the butanedione appears to be predominantly produced by a reaction between the ketocarbene and O2. Product distribution was found to depend greatly on both matrix material and ozone concentration. This is the first direct evidence of a ketocarbene as an intermediate in the O atom addition to an alkyne.

The Gas-Phase Photolysis of Perfluoro α-Diazo Ketones: Furan Formation and the Involvement of Transient Oxirenes

The gas-phase photolyses of hexafluoro-3-diazo-2-butanone (1), octafluoro-2-diazo-3-pentanone (2), and octafluoro-3-diazo-2-pentanone (3) have been studied.Chemical trapping experiments with hexafluoro-2-butyne provide evidence that isomeric ketocarbene intermediates equilibrate, presumably via transient 4-?-electron oxirenes. 1 yields tetrakis(trifluoromethyl)furan (8) as a major product, with a trace of 1,2,3-tris(trifluoromethyl)-3-(trifluoroacetyl)cyclopropene (9) and bis(trifluoromethyl)ketene (10).Photolysis of either 2 or 3 yields the same four trapped products: 2-(pentafluoroethyl)-3,4,5-tris(trifluoromethyl)furan (12), 3-(pentafluoroethyl)-2,4,5-tris(trifluoromethyl)furan (14), 1,2,3-tris(trifluoromethyl)-3-(pentafluoropropionyl)cyclopropene (13), and 1,2-bis(trifluoromethyl)-3-(pentafluoroethyl)-3-(trifluoroacetyl)cyclopropene (15), in approximately the same ratio, along with the Wolff rearrangement product, (pentafluoroethyl)(trifluoromethyl)ketene (16).

Catalytic Conversion of Fluoroalkyl Alkyl Ethers to Carbonyl Compounds

Fluoroalkyl alkyl ethers are generally available by attack of alkoxide ion on fluoro olefins.In the presence of Lewis acid catalysts, such methyl and ethyl ethers have now been found to lose methyl or ethyl fluoride, respectively, to give fluorinated carbonyl compounds.The carbonyl compounds include acid fluoride, ketone, keto ester, vinyl ketone, acyl ketene, ketene, and acryloyl fluoride.