Two novel water and air stable Bronsted-acidic ionic liquids were synthesized.One had an alkoxy benzene sulfonic acid group in the N-methylimidazolium cation,and the other possessed an alkyl benzene sulfonic acid group in the N-methylimidazolium cation.The counteranions were [HSO_4]-for both compounds.The total yield was 79.8% and 83.6%,respectively. All the compounds were new,and their structure was confirmed by IR spectrometry and ~1HNMR.
