Trifluoromethyl sulfur

In the preparation of bis(trifluoromethyl)sulfur difluoride, explosions have occurred when chlorine mono- or tri-fluorides were treated with 2-3 mmol of the sulfide in absence of solvent. Because chlorine trifluoride is known to deprotonate solvents with formation of explosive carbene species, only fully halogenated solvents are suitable as diluents. 

Bis(trifluoromethyl)-5-nitrobenzene, 2885 Bis(trifluoromethyl)sulfur difluoride, 0648 4-Bromocyclopentene, 1884 Bromoethane, 0846... 

Bis(trifluoromethyl) stibine, 16 49 Bis(trifluoromethyl) sulfide, 2 134, 146 Bis(trifluoromethyl) sulfur tetrafluoride, 2 139,... 

When treated with chlorine trifluoridc in CFC-12 at — 78 C, trifluoromethanesulfenyl chloride and bis(lrifluoromethyl) disulfide are transformed into trifluoromethylsulfur trifluoride (95%) and bis(trifluoromethyl)sulfur difluoride (90%). respectively.121... 

Bis(trifluoromethyl) sulfoxide has been prepared1 previously by the direct fluorination of bis(trifluoromethyl) sulfide at —78°C. in hexafluoroethane followed by hydrolysis of the bis(trifluoro-methyl)sulfur difluoride (difluorobis(trifluoromethyl)sulfur). This method suffers because elemental fluorine must be used, and the yields are low. 

Oxidation of bis(trifluoromethyl) sulfide with commercially obtainable chlorine monofluoride in the absence of solvent yields bis(trifluoromethyl)sulfur difluoride in >90% yield.2,3 Pure bis-(trifluoromethyl)sulfur difluoride is resistant to hydrolysis and is stable in Pyrex glass at 25°C. for extended periods of time. Reaction of bis(trifluoromethyl)sulfur difluoride with anhydrous... 

At 25°C. bis(trifluoromethyl)sulfur difluoride is a colorless gas which condenses, on cooling, to a colorless liquid. A boiling point of... 

Concentrating initially only on the physical and chemical nature of the four superacids in common use, it can be shown that, for most synthetic purposes, the fluorine-containing superacids, fluorosulfuric acid (HS03F), trifluoromethyl-sulfuric or triflic acid (CF3S03H) and hydrogen fluoride (HF) offer far more... 

A growing body of evidence indicates that human activities are causing the earth to warm up. This so-called greenhouse effect is due principally to the release of gases such as methane and carbon dioxide into the atmosphere that act to hamper the radiation of heat into space. Now scientists have found a gas in the atmosphere that is the new champion of greenhouse gases. This gas is trifluoromethyl sulfur pentafluoride (SF5CF3), which has the structure... 

D. T. Sauer, J. M. Shreeve, Inorg. Chem. 1972, 11, 238-242. Bis(perfluoroalkyl)sulfur oxyimines and silver bis(trifluoromethyl)sulfur oxyimine. 

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