Ethyl methyl sulfone

Further, tungsten oxysulfide films, WOyS, have shown promising behavior as positive electrodes in microbatteries, unlike WS2 that is not suitable as cathode in lithium cells. Using amorphous thin films of WO1.05S2 and WO1.35S2.2 in the cell Li/LiAsFe, 1 M ethyl-methyl sulfone (EMS)/W03,Sz, Martin-Litas et al. [80] obtained current densities up to 37 xA cm between 1.6 and 3 V. In these cathode materials, 0.6 and 0.8 lithium per formula unit, respectively, could be intercalated and de-intercalated reversibly. 

Sulfones - Compounds having the structure, RS(=0)2R (R not equal to H), e.g. C2HjS(=0)2CH3, ethyl methyl sulfone. [5]... 

Ethanethiol is metabolized to inorganic sulfate and ethyl methyl sulfone, and excreted. The oral LD50 value in rats is 680 mg/kg. 

Radiolabelled metabolites were identified in the urine, carcass and intestines of mice after the administration of a single subcutaneous 10 mg dose of S-labelled diethyl disulfide (approximately 400 mg/kg bw) in an aqueous vehicle. Ethyl methyl sulfone was detected in the urine, carcass and intestines of mice after a single oral dose of 160 mg diethyl disulfide/kg bw. This product forms via reduction of diethyl disulfide to ethyl thiol, which is subsequently methylated to methyl ethyl sulfide. The sulfide is then oxidized to the corresponding sulfone. Sulfate accounted for 80-90% of the radioactivity in urine. Ethyl methyl sulfone was also detected in the urine of rabbits and guinea-pigs after single oral doses of 200 and 185 mg diethyl disulfide/ kg bw, respeotively (Snow, 1957). 

Section 2.5 reviews papers on lithium and lithium-ion cells using sulfur-containing organic solvents, including sulfide, sulfoxide, sulfone, sulfite, sulfonate, and sulfate. Particularly, the performance of sulfones such as ethyl methyl sulfone and sulfolane as electrolyte solvents for high-voltage cells is introduced. 

Sulfolane (TMS) is the most smdied sulfur-containing organic solvent for lithium [150] and lithium-ion [151] cells. Since sulfolane is a solid at room temperature, like EC, it is often mixed with low-viscosity solvents to make electrolyte solutions. Dimethyl sulfone has a high melting point of 108 °C, and it is not easy to handle as a solvent, although it was used for lithium cells in high-temperature operation above 150 °C [152, 153]. Unsymmetrical ethyl methyl sulfone has a relatively low melting point of 37 °C, and it was studied extensively as an electrolyte solvent [154],... 

Park, S. H. Winnick, J. Kohl, P. A., Investigation of the lithium couple on Pt, Al, and Hg electrodes in lithium imide-ethyl methyl sulfone, J. Electrochem. Soc. 2002, 149, A1196-A1200. 

Fusion of methyl or ethyl toluene- -sulfonates with 4-hydroxy-6-methyl-l,3,3a,7-tetraazaindene (135) gives only one salt, which on treatment with alkali is converted into a N-alkyl-4-oxo derivative. 

Tanaka and coworkers337 reported successful syntheses of aldehydes and ketones using (l-ethoxyethoxy)methyl phenyl sulfone 258 and 1-(1-ethoxyethoxy)ethyl phenyl sulfone 259, as shown in the following scheme. 

Demeton-S-methyl sulfone (hRf 0-5), dimethoate (h/ f 5-10), demeton-S-metlq (hRf 20-25), triazophos (h/ f 40-45), azinphos-methyl (hRf 40-45), azinphos-ethj (hRf 50-55), malathion (h/ f 60-65), parathion-methyl (hRf 75-80) and parathioo ethyl (h/ f 80-85) yielded yellow to brown chromatogram zones on a light brown bact ground, with thiophosphate insecticides with P = S double bonds appearing as brow zones and those with single P — S bonds as yellow zones. 

Fig. 1 Reflectance scan of a chromatogram track with 100 ng each substance per chromatogram, one 1 = demeton-S-methyl sulfone, 2 = dimethoate, 3 = demeton-S-methyl, 4 = triazophos, 5 = azinphos-methyl, 6 = azinphos-ethyl, 7 = malathion, 8 = parathion-methyl and 9 = para-...

Masri, M.S., and Friedman, M. (1988) Protein reactions with methyl and ethyl vinyl sulfones./. Protein Chem. 7, 49-54. 

Ozone oxidation of 6-aryl-2-methylthiopyrido[2,3-methyl sulfone with /ra j-4-aminocyclohexanol afforded the amino pyridopyrimidinone derivative 176 <2002W02002018380>. Amination of 6-dimethoxyphenyl-8-ethyl-2-methylthiopyrido[2,3-t7 pyrimidin-7-one with 4-aminopyridine and LiNH2 in THF at 50°C produced the 2-[(4-pyridyl)amino] derivative 177 <2003W02003027110>. 

The sulfur-containing (3-carboline alkaloid, 1-ethyl-4-methyl-sulfone-P-carboline (2) was isolated from the New Zealand bryozoan Cribricellina cribraria, along with several other (3-carboline alkaloids. l-Ethyl-4-methyl-sulfone-P-carboline (2) exhibited only modest antimicrobial activity, especially compared to some of the other alkaloids isolated, which were both cytotoxic and antimicrobial [27]. 

The methyl radical is formed from (3-cleavage of the r-butoxyl radical derived from di-t-butyl peroxide (cat.), and it reacts with ethyl styrenyl sulfone to generate an ethanesulfonyl radical and trans-(3-methylstyrene. The ethyl radical formed from (3-cleavage of the ethanesulfonyl radical, at last, reacts with alkyl iodide (71) via SH2 pathway to produce an alkyl radical and ethyl iodide. Here, the alkyl radical should be more stable than the ethyl radical. Therefore, alkyl radicals should be sec- or tert-alkyl radicals. The formed alkyl radical reacts with ethyl styrenyl sulfone to give addition-elimination product (72), together with ethanesulfonyl radical as a radical chain precursor. 

Ethyl mercapto ethyl thiocyanate demeton-S-ethyl, demeton-S-methyl, demeton-S-methyl sulfone, oxydemeton Ethyl methallyl amine ethalfluralin... 

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