Description

• Application: Excitable by blue LEDs, this photocatalyst was reported by the Nicewicz laboratory for catalysis of O-aryl carbamothioates to S-aryl carbamothioates at ambient temperatures, an improvement from the elevated reaction temperatures traditionally needed in the Newman-Kwart rearrangment or palladium catalysis. Effective for scale-up or flow chemistry, this triarylpyrylium salt provides convenient access to thiophenols from phenols.
• Other Notes: Ambient-Temperature Newman-Kwart Rearrangement Mediated by Organic Photoredox CatalysisCycloaddition Reactions Initiated by Photochemically Excited Pyrylium Salts