A mild and efficient method for the chemoselective preparation of 1,1-diacetates catalyzed by 1-methyl-3-(3- sulfopropyl)-imidazolium methyl sulfate under ultrasound irradiation has been developed. The yields are ranged in 90% ∼ 98%. This protocol offered several advantages including low catalyst loading, high yields, short reaction time and environmentally benign approach.
Keywords: 1,1-diacetates, 1-methyl-3-(3-sulfopropyl)-imidazolium methyl sulfate, aldehydes, catalyze, synthesis, ultrasound irradiation, imidazolium, sulfopropyl, methyl, sulfate
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