Triethylamine → Triethylammonium 2-mercaptobenzenesulfonate

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Reaction Steps

Then, 2.0 g of the resulting anilinium 2-mercaptobenzenesulfonate was subjected to ion-exchange column chromatography (about 30 ml of Dowex 50W-X2, 100-200 mesh, H-form was filled into a column) and eluted with a mixed solvent of methanol and water (4/1, v/v). Acidic fractions were concentrated under reduced pressure, and about 50 ml of isopropanol was added to the resulting syrup. The solvent was evaporated under reduced pressure. To 1.1 g of the resulting syrup, about 4 ml of isopropanol was added to form a solution. Triethylamine (0.58 g) was added to the solution, and the resulting crystals were collected by filtration to give 0.84 g of the captioned compound as colorless crystals (melting point: 89° to 90° C.)

Provenance & Evidence