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Keywords
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Brønsted acidic ionic liquid, 3-Methyl-1-sulfonic acid imidazolium chloride {[Msim]Cl}, N-Sulfonyl imine, Sulfonamide, Aldehyde
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Abstract
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New Brønsted acidic ionic liquid, 3-methyl-1-sulfonic acid imidazolium chloride {[Msim]Cl} was used as an efficient, green and reusable catalyst and solvent for the synthesis of N-sulfonyl imines via the condensation of sulfonamides with aldehydes as well as isatin. The reactions proceeded at room temperature and the title compounds were obtained in high to excellent yields and in relatively short reaction times.
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