Abstract
Abstract The electron beam (EB) sensitivity of sulfonic acid derivatives in the crystalline state was much higher than that of the corresponding carboxylic acid derivatives, which was distinct from the results using other energy sources such as heat and UV; especially, sulfonamide derivatives could undergo the chemoselective Fries rearrangement to give ortho and para products in the ratio of ca. 7/3 without the meta isomer.
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