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A sulfonate is a salt or ester of a sulfonic acid. It contains the functional group R-SO3−. ==Sulfonate salts== Anions with the general formula RSO3− are called sulfonates. They are the conjugate bases of sulfonic acids with formula RSO2OH. As sulfonic acids tend to be strong acids, the corresponding sulfonates are weak bases. Due to the stability of sulfonate anions, the cations of sulfonate salts such as scandium triflate have application as Lewis acids. A classic organic reaction for the preparation of sulfonates is that of alkyl halides with sulfites such as sodium sulfite, first described by Adolph Strecker in 1868 (Strecker sulfite alkylation).〔''Ueber eine neue Bildungsweise und die Constitution der Sulfosäuren'' Annalen der Chemie und Pharmacie Volume 148, Issue 1 , Pages 90 - 96 (p 90-96) 1868 〕 The general reaction is: ::RX + M2SO3 → RSO3M + MX Iodide is used as a catalyst. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「sulfonate」の詳細全文を読む スポンサード リンク
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