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2.2.3- trifluoro-3- oxirane

The conversion of 3-chloropentafluoropropene to 2-(chlorodifluoromethyI)-2,3,3-trifluoro-oxirane (33) can be carried out64 by heating the mixture of the alkene and oxygen in 1,1,2-trichlorotrifluoroethane (CFC-113) in an autoclave.64 The oxidation with hydrogen peroxide in alkaline solution is negatively influenced by the high nucleophilic reactivity of allylic chlorine.65 66 The reaction is performed at very low temperatures that favor the attack of the hydroperoxy anion in competition with the hydroxy anion. Acceptable yields of 31 -38 % are obtained in the presence of a phase-transfer catalyst.66... [Pg.13]

Dimethyl-1,2-benzenediamine (384) and 2,2,3-trifluoro-3-trifluoromethyl-oxirane (385) gave 3-trifluoromethyl-2(l//)-quinoxalmone (386) (NaHCOs, CH2Cl2-Et20, 23°C, sealed, 12 h 78%) analogs similarly. [Pg.52]

TRIFLUORO-2-ETHOXY-2,3-EPOXY-5-PHENYLPENTANE OXIRANE, 2-ETHOXY-3-(2-PHENYLETHYL)-2-(TRIFLUOROMETHYL)-, cis-( )- (141937-91-9), 75, 153... [Pg.129]

Trifluoro-2-ethoxy-2,3-epoxy-5-phenylpentane Oxirane, 2-ethoxy-3-(2-phenylethyl)-2-(trifluoromethyl)-, cis-( )- (13) (141937-91-9) (Z)-1,1,1-Trifluoro-2-ethoxy-5-phenyl-2-pentene Benzene, (4-ethoxy-5,5,5-trifluoro-3-pentenyl)-, (Z)- (13) (141708-71-6)... [Pg.159]

Fluorinated oxiranes are hydrolyzed to give a-oxo acids. For example, perfluoropropylene oxide is hydrolyzed to give 3,3,3-trifluoro-2,2-dihydroxypropanoic acid (31).153 154... [Pg.416]

Ethene (Pentafluoro-ethoxy)-trifluoro- ElOa. 49 (Toxicity) Propanoyl Fluoride Tetrafluoro-2-trifluoromethyl- ElOa, 205 (°C3Hs-CO-C1+ F,) EI0b2, 247 [1.2-(OF3)2 — F2-oxiran/... [Pg.610]

Propanoyl Fluoride Tetrafluoro-3-(trifluoro-oxiranyl)- EI0b2, 24 (En - Oxiran ... [Pg.620]

Dichloro-heplafluoro-butyl)-trifluoro- El0b2, 14 (En -> Oxiran)... [Pg.738]

Oxiran). 247 (Educi) [Difluoro-(pentafluoro-phonoxy)-methylj-trifluoro- E10b2, 247... [Pg.739]

Pentafluorosulfuranyl-trifluoro-EI0b2. 71 (En - Oxiran) 2-Phenoxy-2-trifluot omethyl- ElOb., 556 (F,C —COOAr + CH2N2) Tetrafluoro- ElOb,. 498/500 (Educt) ElOb, 705 (Polym.) EI0b2. 8f. (En -> Oxiran). 18 (En -> Oxiran), 246 (F.duct)... [Pg.739]

Telrafluoro-lH-ethyl)-trifluoro-EI0b2. 12 (En Oxiran) (Tetrafluoi 0-2H-ethyl)-trifUioro-EI0b2, 12 (En -> Oxiran) (Telrii(liioro-3.3.3-trichloro-propyl)-trifluoro- EI0b2. 14 (En - Oxiran)... [Pg.739]

Alkali metal fluorides are, in general, not much used for the ring-opening fluorination of epoxides. However, the oligomerization of trifluoro(trifluoromethyl)oxirane induced by cesium fluoride is of some importance for the preparation of fluorinated polymeric ethers 1. ... [Pg.153]

Using cesium fluoride in tetrahydrofuran it is possible to prepare the cesium salt of heptafluoro-propanolate (2) from trifluoro(trifluoromethyl)oxirane. ... [Pg.153]

PROPYLENE OXIDE (DOT) OXIRANE, TRIFLUORO-(TRIFLUOROMETHYL)- PERFLUORO(METHYLO-XIRANE) PERFLUOROPROPYLENE OXIDE PROPANE, l,2-EPOXY-l,l,2,3,3,3-HEXAFLUORO- PROPYLENE OXIDE HEXAFLUORIDE (TRIFLUORO-xMETHYL)TRIFLUOROOXIRANE TRIFLUORO-(TRIFLUOROMETHYL)OXIRANE... [Pg.718]

The preparative syntheses of of 1,1-difluorocyclopropanes from 2,2,3-trifluoro-3-trifluoro-methyloxirane consists of heating a mixture of the oxirane (bp — 28 °C/760 Torr) and an alkene in an autoclave at 190-200°C for 7 hours (Houben-Weyl, Vol. E19b, pp 1479-1480). [Pg.597]

See other pages where 2.2.3- trifluoro-3- oxirane is mentioned: [Pg.59]    [Pg.71]    [Pg.620]    [Pg.653]    [Pg.738]    [Pg.738]    [Pg.739]    [Pg.739]    [Pg.739]    [Pg.739]    [Pg.739]    [Pg.740]    [Pg.740]    [Pg.805]    [Pg.871]    [Pg.871]    [Pg.1822]    [Pg.1921]    [Pg.182]    [Pg.589]    [Pg.589]   
See also in sourсe #XX -- [ Pg.156 ]



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1,1,1-TRIFLUORO-2-ETHOXY-2.3-EPOXY-5-PHENYLPENTANE: OXIRANE

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