Aerobic Organocatalytic Photoinitiated Arene Oxidations: Application to Electron Transfer Initiated Cyclization Reactions
作者:V. Satish Kumar、Danielle L. Aubele、Paul E. Floreancig
DOI:10.1021/ol016996f
日期:2001.12.1
[reaction: see text] Electrontransfer initiated oxidative cyclization reactions can be effected by catalytic amounts of N-methylquinolinium hexafluorophosphate through photoirradiation in the presence of dioxygen. Solid sodium thiosulfate serves as an effective reducing agent to remove the reactive oxygen species formed from catalyst regeneration and radical coupling reactions with O(2), allowing
Electron Transfer Initiated Cyclizations: Cyclic Acetal Synthesis through Carbon−Carbon σ-Bond Activation
作者:V. Satish Kumar、Paul E. Floreancig
DOI:10.1021/ja015526d
日期:2001.4.1
Tuning Reactivity and Chemoselectivity in Electron Transfer Initiated Cyclization Reactions: Applications to Carbon−Carbon Bond Formation
作者:John R. Seiders、Lijun Wang、Paul E. Floreancig
DOI:10.1021/ja029139v
日期:2003.3.1
demonstrate that the scope of our electrontransfer initiated cyclization reaction can be significantly broadened by exploiting the relationship between the oxidation potentials of homobenzylic ethers and the mesolytic benzylic carbon-carbonbond dissociation energies of their radical cations. By lowering the oxidation potential of the electrophore and the benzylic carbon-carbonbond dissociation energy, we