Radical Generation with Semiquinoid Flavin Catalysts and their Ring-Contracted Analogues (B07)

• Subject Area: Organic Molecular Chemistry - Synthesis and Characterisation
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 444632635

Reductive flavin photocatalysis was at the center of project B07 in the first funding period. The proposed new work packages for the next phase expand the catalytic repertoire of flavins in two orthogonal areas of activity. Assemblies with excited semiquinones will be studied as reductants for radical-radical coupling reactions. This strategy relies on the stabilized nature of semiquinones derived from N-substituted flavins. On the other hand, ring-contracted truncated flavins will serve as sensitization catalysts on the basis of their increased triplet energy. Higher excited Tn states are studied in photocatalysis through assembly control.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 325: Assembly Controlled Chemical Photocatalysis
• Applicant Institution: Universität Regensburg
• Project Head: Dr. Golo Trutz Benjamin Storch