Abstract
AbstractAn effective approach for monodesulfonation of polyphenol sulfonate under ultrasonic irradiation was reported. Series of substituted ortho‐, meta‐ or para‐hydroxylphenol sulfonates or 5‐hydroxy‐1,3‐phenylene bis(4‐methylbenzenesulfonate) were obtained specifically in the presence of sodium hydroxide in acetonitrile. With treatment of potassium carbonate in alcohol, alkyloxylphenol sulfonates was provided via one‐pot monodesulfanation followed by alkylation under ultrasonicated solvent‐free conditions. The alcohol had been regarded as green alkylation reagent. The results of the exploration of the scalability of monodesulfonation and one‐pot monodesulfonation‐alkylation of resorcinol bissulfonate indicated that such modes had the potential application value in scale production.
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