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- W2161004022 abstract "[39394-84-8] CH4O8P2S (MW 238.06) InChI = 1S/CH4O3S.O5P2/c1-5(2,3)4;1-6(2)5-7(3)4/h1H3,(H,2,3,4); InChIKey = JHNLZOVBAQWGQU-UHFFFAOYSA-N (P2O5) [1314-56-3] O5P2 (MW 141.94) InChI = 1S/O5P2/c1-6(2)5-7(3)4 InChIKey = YWEUIGNSBFLMFL-UHFFFAOYSA-N (MeSO3H) [75-75-2] CH4O3S (MW 96.12) InChI = 1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4) InChIKey = AFVFQIVMOAPDHO-UHFFFAOYSA-N (acidic dehydrating agent used in cycloalkenone synthesis,1 Friedel–Crafts reactions,1 the Fischer indole synthesis,2 the Beckmann rearrangement,1 and other dehydrations; an alternative to polyphosphoric acid1) Alternate Name: Eaton's reagent. Physical Data: 7.5 wt% solution: bp 122 °C/1 mmHg; d 1.500 g cm−3. Solubility: sol ether, alcohol, MeCN, CH2Cl2; insol toluene, hexane.2, 3 Form Supplied in: 7.5 wt% solution is commercially available. Preparative Method: prepared1 by adding Phosphorus(V) Oxide (P2O5, 36 g) in one portion to Methanesulfonic Acid (360 g) and stirring at rt3 until the P2O5 dissolves.4 Although Eaton recommends the use of freshly distilled methanesulfonic acid to allow for a clean workup and good yields,1 others report using the acid as purchased.5, 6 Handling, Storage, and Precautions: Eaton's reagent is toxic and corrosive. Direct contact with this reagent should be avoided. The solution begins to yellow upon standing for long periods of time; however, this does not appear to affect the viability of the reagent.1 Use in a fume hood." @default.
- W2161004022 created "2016-06-24" @default.
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- W2161004022 date "2001-04-15" @default.
- W2161004022 modified "2023-09-27" @default.
- W2161004022 title "Phosphorus(V) Oxide-Methanesulfonic Acid" @default.
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