Resonance Raman spectroscopic studies of peroxo and hydroperoxo intermediates in lauric acid (LA)-bound cytochrome P450 119

Immobilized transition metal (II) bis–imine chelate on ZnO@TiO2 nanoparticles as sufficient catalysts for alcohol oxidation and for α,β‐cinnamic acid decarboxylative bromination

“…The solvent interaction of acetonitrile with the complex catalyst is studied considerably by Usai et al 64 and by Korpi et al 65 t BuOOH was more reactive than H 2 O 2 in the current catalytic protocol, which could be due to the presence of an excess amount of water with H 2 O 2 . Additionally, the tert ‐butyl group, with electron‐donating power, could facilitate the formation of hydroperoxo copper complex intermediate ( D ) more than that of H 2 O 2 64 . Furthermore, the organic nature of t BuOOH, as an organic oxidant, compared to that of the inorganic oxidant (H 2 O 2 ) similar to the reaction contents, could also modify the redox process 63 .…”

“…After that, deprotonation of the coordinate oxidant molecule could be achieved in order to form a hydroperoxo copper complex intermediate ( D ). Intermediate D could progress the oxygen transfer step in the productivity of benzyl alcohol oxidation, as presented in Scheme 4 60,62–64 …”

“…Intermediate D could progress the oxygen transfer step in the productivity of benzyl alcohol oxidation, as presented in Scheme 4. 60,[62][63][64] The solvent interaction of acetonitrile with the complex catalyst is studied considerably by Usai et al 64 and by Korpi et al 65 t BuOOH was more reactive than H 2 O 2 in the current catalytic protocol, which could be due to the presence of an excess amount of water with H 2 O 2 . Additionally, the tert-butyl group, with electron-donating power, could facilitate the formation of hydroperoxo copper complex intermediate (D) more than that of H 2 O 2 .…”

“…Additionally, the tert-butyl group, with electron-donating power, could facilitate the formation of hydroperoxo copper complex intermediate (D) more than that of H 2 O 2 . 64 Furthermore, the organic nature of t BuOOH, as an T A B L E 4 Various loaded amounts of CuL 2 and ZnO@TiO 2 @CuL 2 to the catalytic system of benzyl alcohol oxidation by t BuOOH. organic oxidant, compared to that of the inorganic oxidant (H 2 O 2 ) similar to the reaction contents, could also modify the redox process.…”