AbstractA palladium‐catalyzed intramolecular CH bond sulfuration reaction of aryl thiocarbamates has been developed. This strategy provides a new route to benzo[d][1,3]oxathiol‐2‐ones with tolerance of a wide range of substituents. Mechanistic studies suggested that the CH activation–sulfuration to afford 2‐imino‐1,3‐benzoxathiole intermediate might involve an electrophilic palladation process.magnified image
AbstractA palladium‐catalyzed intramolecular CH bond sulfuration reaction of aryl thiocarbamates has been developed. This strategy provides a new route to benzo[d][1,3]oxathiol‐2‐ones with tolerance of a wide range of substituents. Mechanistic studies suggested that the CH activation–sulfuration to afford 2‐imino‐1,3‐benzoxathiole intermediate might involve an electrophilic palladation process.magnified image