title: Catalytic conversion of aryl triazenes into aryl sulfonamides using sulfur dioxide as the sulfonyl source.
abstract: Various sulfonamides have been synthesized from triazenes and sulfur dioxide. In the presence of just a catalytic amount of BF3·OEt2, a series of 1-aryl-triazenes were converted into sulfonyl hydrazines in good to excellent yields. When using CuCl2 as the catalyst, the corresponding sulfonamides can be produced from the 1-aryl triazenes in good yields.
authors.affiliation: Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany. xiao-feng.wu@catalysis.de.
authors.forename: Wanfang
authors.initials: W
authors.lastname: Li
authors.forename: Matthias
authors.initials: M
authors.lastname: Beller
authors.forename: Xiao-Feng
authors.initials: XF
authors.lastname: Wu
mesh_terms: D001554:Benzene / Q000737:chemistry; D002384:Catalysis; D013449:Sulfonamides / Q000737:chemistry*; D013458:Sulfur Dioxide / Q000737:chemistry*; D014226:Triazenes / Q000737:chemistry*
chemical_list: D013449:Sulfonamides; D014226:Triazenes; D013458:Sulfur Dioxide; D001554:Benzene