Search results
Results from the WOW.Com Content Network
It is based on a direct reaction between methane and oleum at around 50 °C and 100 bar in the presence of a potassium persulfate initiator. [10] Further addition of sulfur trioxide gives methanedisulfonic acid instead. [11] This technology was acquired and commercialized by BASF in 2019. [12]
Dimethyl sulfone (DMSO 2) is an organosulfur compound with the formula (CH 3) 2 SO 2. It is also known by several other names including methyl sulfone and (especially in alternative medicine) methylsulfonylmethane (MSM). [4] This colorless solid features the sulfonyl functional group and is the simplest of the sulfones. It is relatively inert ...
The acid was first unknowingly prepared in 1833 by Gustav Magnus as a decomposition product of ethanedisulfonic acid during early attempts [4] to synthesize diethyl ether from ethanol and anhydrous sulfuric acid by Magnus. [5] Early investigations focused on ether production from alcohols and strong anhydrous acids.
The general formula is R−SO 2 NR'R" or R−S(=O) 2 −NR'R", where each R is some organic group; for example, "methanesulfonamide" (where R = methane, R' = R" = hydrogen) is CH 3 SO 2 NH 2. Any sulfonamide can be considered as derived from a sulfonic acid by replacing a hydroxyl group ( −OH ) with an amine group.
Ethyl methanesulfonate, dimethyl sulfone, dimethyl sulfate Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify ( what is Y N ?)
Methanesulfonyl chloride is mainly used to give methanesulfonates by its reaction with alcohols in the presence of a non-nucleophilic base. [8] In contrast to the formation of toluenesulfonates from alcohols and p-toluenesulfonyl chloride in the presence of pyridine, the formation of methanesulfonates is believed to proceed via a mechanism wherein methanesulfonyl chloride first undergoes an ...
Dimethyl sulfide is used in the workup of the ozonolysis of alkenes. It reduces the intermediate trioxolane. The Swern oxidation produces dimethyl sulfide by reduction of dimethylsulfoxide. With chlorinating agents such as sulfuryl chloride, dimethyl sulfide converts to chloromethyl methyl sulfide: SO 2 Cl 2 + (CH 3) 2 S → SO 2 + HCl + ClCH 2 ...
Treatment of sulfur with hydrogen gives hydrogen sulfide.When dissolved in water, hydrogen sulfide is mildly acidic: [5] H 2 S ⇌ HS − + H +. Hydrogen sulfide gas and the hydrosulfide anion are extremely toxic to mammals, due to their inhibition of the oxygen-carrying capacity of hemoglobin and certain cytochromes in a manner analogous to cyanide and azide.