734-22-5Relevant academic research and scientific papers
Complementary Site-Selective Sulfonylation of Aromatic Amines by Superacid Activation
Bourbon, Paul,Appert, Emeline,Martin-Mingot, Agnès,Michelet, Bastien,Thibaudeau, Sébastien
, p. 4115 - 4120 (2021/06/21)
Under superacidic conditions, aniline and indole derivatives are sulfonylated at low temperature with easy-to-access arenesulfonic acids or arenesulfonyl hydrazides. By modification of the functional-group directing effect through protonation, this method allows nonclassical site functionalization by overcoming the innate regioselectivity of electrophilic aromatic substitution. This superacid-mediated sulfonylation of arenes is complementary to existing methods and can be applied, through protection by protonation, to the late-stage site-selective functionalization of natural alkaloids and active pharmaceutical ingredients.
2-Amino-4'(phenylsulfonyl) acetanilides
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, (2008/06/13)
A method of modulating the immune response system in a warm-blooded animal by the administration of N-substituted-phenylthioanilines, N-substituted-phenylsulfinylanilines, and N-substituted-phenylsulfonylanilines, certain of which are new compounds.
