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A general and mild method for the N-arylation of sulfonamides on solid supports is reported. Copper acetate, triethylamine mediated coupling of arylboronic acids at room temperature to solid-supported sulfonamides gave good to excellent yields of the desired N-arylsulfonamides. Sulfonamide bond cleavage of the o,p-dinitrobenzene(N-aryl)sulfonamide provides a route to N-arylated secondary amine products.
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Combs et al. (1999) studied this question.
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