Visible‐Light‐Driven Copper‐Catalyzed Synthesis of Sulfonamides from Aryl‐N 2 BF 4 through One‐pot Tricomponent Reaction

A method for preparing sulfonamides using visible light is described. In this approach, an aryl diazo tetrafluoroborate salt, 1,4‐diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO), and amino benzoate as substrates, CuBr 2 as a catalyst, and 3‐methyl‐3‐pentanol as an additive were employed for a...

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Veröffentlicht in:Advanced synthesis & catalysis 2023-05, Vol.365 (10), p.1671-1677
Hauptverfasser: Giang Luu, Truong, Kim, Hee‐Kwon
Format: Artikel
Sprache:eng
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Zusammenfassung:A method for preparing sulfonamides using visible light is described. In this approach, an aryl diazo tetrafluoroborate salt, 1,4‐diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO), and amino benzoate as substrates, CuBr 2 as a catalyst, and 3‐methyl‐3‐pentanol as an additive were employed for a one‐pot multicomponent reaction to provide sulfonamides under mild reaction conditions. A variety of aryl diazo tetrafluoroborate salts and O ‐benzoyl hydroxylamines were tolerated in this process to provide products with yields up to 96%. magnified image
ISSN:1615-4150
1615-4169
DOI:10.1002/adsc.202300197