Photocatalyzed Oxidation of Cyclohexene and Cyclooctene with (nBu4N)4W10O32 and (nBu4N)4W10O32/FeIII[meso-Tetrakis(2,6-dichlorophenyl)porphyrin] in Homogeneous and Heterogeneous Systems

Photocatalyzed Generation of Nitrosocarbonyl Intermediates Under Solar Light Irradiation

“…This value indicates a very efficient quenching of wO by 5g . On the other hand, literature reports indicate that alkenes can likewise quench wO , ultimately leading to the corresponding oxidized derivatives when oxygen is present in the reaction mixture . Indeed, we cannot exclude that this pathway is operative also under our conditions, nevertheless it is not productive, since we never observed oxidation products deriving from 6 or 7 .…”

Photocatalyzed Generation of Nitrosocarbonyl Intermediates Under Solar Light Irradiation

“…This value indicates a very efficient quenching of wO by 5g . On the other hand, literature reports indicate that alkenes can likewise quench wO , ultimately leading to the corresponding oxidized derivatives when oxygen is present in the reaction mixture . Indeed, we cannot exclude that this pathway is operative also under our conditions, nevertheless it is not productive, since we never observed oxidation products deriving from 6 or 7 .…”

Selective Photooxidation and Photoreduction Processes at Surface-Modified by Grafted Vanadyl

“…Actually, if peroxo species are involved, formation of products depends very much on the type of bond (covalent or ionic) formed with the vanadium center [51]. The data reported here are very strongly reminiscent of a solution phase autoxidation of cyclohexenyl peroxide formed by a primary step involving reaction of cyclohexenyl radicals with O 2 or O − 2 [42].…”

Beyond HAT: harnessing TBADT for photocatalyzed Giese-type C(sp 3 )–C(sp 3 ) bond formation through reductive decarboxylation

“…46 Previous reports point to a smooth hydrogen abstraction of allylic hydrogens in tetramethylethylene and cyclohexene by excited TBADT. 47 In addition, cyclohexadiene derivatives are known to be excellent H-donors in photocatalyzed HAT reactions. In fact, the rate constant for abstraction of the C–H bond in 1,4-cyclohexadiene (CHD) by excited TBADT is very high (3 × 10 8 M −1 s −1 ).…”

Photocatalyzed Generation of Nitrosocarbonyl Intermediates Under Solar Light Irradiation

“…This value indicates a very efficient quenching of wO by 5g . On the other hand, literature reports indicate that alkenes can likewise quench wO , ultimately leading to the corresponding oxidized derivatives when oxygen is present in the reaction mixture . Indeed, we cannot exclude that this pathway is operative also under our conditions, nevertheless it is not productive, since we never observed oxidation products deriving from 6 or 7 .…”

Selective Photooxidation and Photoreduction Processes at Surface-Modified by Grafted Vanadyl

“…Actually, if peroxo species are involved, formation of products depends very much on the type of bond (covalent or ionic) formed with the vanadium center [51]. The data reported here are very strongly reminiscent of a solution phase autoxidation of cyclohexenyl peroxide formed by a primary step involving reaction of cyclohexenyl radicals with O 2 or O − 2 [42].…”

Beyond HAT: harnessing TBADT for photocatalyzed Giese-type C(sp 3 )–C(sp 3 ) bond formation through reductive decarboxylation

“…46 Previous reports point to a smooth hydrogen abstraction of allylic hydrogens in tetramethylethylene and cyclohexene by excited TBADT. 47 In addition, cyclohexadiene derivatives are known to be excellent H-donors in photocatalyzed HAT reactions. In fact, the rate constant for abstraction of the C–H bond in 1,4-cyclohexadiene (CHD) by excited TBADT is very high (3 × 10 8 M −1 s −1 ).…”

Photocatalyzed Generation of Nitrosocarbonyl Intermediates Under Solar Light Irradiation

“…This value indicates a very efficient quenching of wO by 5g . On the other hand, literature reports indicate that alkenes can likewise quench wO , ultimately leading to the corresponding oxidized derivatives when oxygen is present in the reaction mixture . Indeed, we cannot exclude that this pathway is operative also under our conditions, nevertheless it is not productive, since we never observed oxidation products deriving from 6 or 7 .…”

Selective Photooxidation and Photoreduction Processes at Surface-Modified by Grafted Vanadyl

“…Actually, if peroxo species are involved, formation of products depends very much on the type of bond (covalent or ionic) formed with the vanadium center [51]. The data reported here are very strongly reminiscent of a solution phase autoxidation of cyclohexenyl peroxide formed by a primary step involving reaction of cyclohexenyl radicals with O 2 or O − 2 [42].…”

Beyond HAT: harnessing TBADT for photocatalyzed Giese-type C(sp 3 )–C(sp 3 ) bond formation through reductive decarboxylation

“…46 Previous reports point to a smooth hydrogen abstraction of allylic hydrogens in tetramethylethylene and cyclohexene by excited TBADT. 47 In addition, cyclohexadiene derivatives are known to be excellent H-donors in photocatalyzed HAT reactions. In fact, the rate constant for abstraction of the C–H bond in 1,4-cyclohexadiene (CHD) by excited TBADT is very high (3 × 10 8 M −1 s −1 ).…”