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...
Gespeichert in:
Veröffentlicht in: | Advanced synthesis & catalysis 2023-05, Vol.365 (10), p.1671-1677 |
---|---|
Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
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 |