Visible-Light-Induced Insertion of Sulfur Dioxide Mediated by Electron Donor-Acceptor Complex: Synthesis and Photophysical Properties of 3-Sulfonyl Indolizines

This work investigates a light-driven 3-component sulfonylation reaction of indolizines without needing any external photocatalyst. The mechanistic investigations support the formation of an electron donor-acceptor (EDA) complex in situ. This transformation offers a mild and sustainable approach with high functional group tolerance for the synthesis of 3-sulfonylated indolizines. This compound class has valuable photophysical properties and represents promising candidates in various applications related to fluorescence.

Automated summary

This study investigates a light-driven 3-component sulfonylation reaction of indolizines without requiring an external photocatalyst. Mechanistic investigations support the in situ formation of an electron donor-acceptor (EDA) complex. This transformation offers a mild and sustainable approach with high functional group tolerance for synthesizing 3-sulfonylated indolizines, which have valuable photophysical properties and potential applications in fluorescence-related fields.