Desulfinative and denitrogenative palladium-catalyzed cross-coupling of arylsulfonyl hydrazides with aryl diazonium salts
作者:Yonghui Shang
DOI:10.1002/aoc.4484
日期:2018.11
Palladium‐catalyzedcross‐coupling of arylsulfonyl hydrazides with aryl diazonium salts to provide biaryl products under relatively mild conditions is established. This reaction proceeded smoothly with tetrabutylammonium iodide and gave the corresponding products with CC bonds formed using PdCl2/bis (dicyclohexylphosphino) methane catalyst under air. This method also allowed easy access to significant
Visible-light-induced arylation<i>via</i>an electron–donor–acceptor complex: a catalyst-free approach for the synthesis of<i>N</i>-(hetero)aryl sulfonamides
作者:Arsala Kamal、Vandana Srivastava、Sundaram Singh
DOI:10.1039/d3nj02224b
日期:——
photoexcitation of aryl(hetero)diazonium salts and sulfonamides enabled this strategy under visible-light irradiation through an EDA complex used to carry out a one-step synthesis without a catalyst. This approach tolerated various functional groups of primary sulfonamides and (hetero)aryl diazonium salts, frequently found in modern medications and pharmacological intermediates. This method also enabled