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Methanesulfonic acid (MsOH, MSA) or methanesulphonic acid (in British English) is an organosulfuric, colorless liquid with the molecular formula CH 3 SO 3 H and structure H 3 C−S(=O) 2 −OH. It is the simplest of the alkylsulfonic acids ( R−S(=O) 2 −OH ).
The simplest examples are methanesulfonic acid, CH 3 SO 2 OH and p-toluenesulfonic acid, which are regularly used in organic chemistry as acids that are lipophilic (soluble in organic solvents). Polymeric sulfonic acids are also useful. Dowex resin are sulfonic acid derivatives of polystyrene and is used as catalysts and for ion exchange (water ...
Methanesulfonic anhydride (Ms 2 O) is the acid anhydride of methanesulfonic acid. Like methanesulfonyl chloride (MsCl), it may be used to generate mesylates (methanesulfonyl esters). Preparation & purification
Methanedisulfonic acid is the organosulfur compound with the formula CH 2 (SO 3 H) 2. It is the di sulfonic acid of methane . It is prepared by treatment of methanesulfonic acid with oleum .
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 ...
Triflic acid, the short name for trifluoromethanesulfonic acid, TFMS, TFSA, HOTf or TfOH, is a sulfonic acid with the chemical formula CF 3 SO 3 H. It is one of the strongest known acids . Triflic acid is mainly used in research as a catalyst for esterification .
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Ethyl methanesulfonate (EMS) is an organosulfur compound with the formula CH 3 SO 3 C 2 H 5.It is the ethyl ester of methanesulfonic acid.A colorless liquid, it is classified as an alkylating agent.