Low-temperature oxidation of isopropylbenzene mediated by the system of NHPI, Fe(acac)3 and 1,10-phenanthroline

Photocatalytic Strategy to Realize N-Debenzylation via Aerobic Oxidation Catalyzed by 4CzIPN

“…Debenzylation was greatly inhibited when no HCl was added or when other acids such as sulfuric acid (H 2 SO 4 ), formic acid, and acetic acid were used (Table , entries 9 and 10). In general, acetonitrile is a perfect solvent for many aerobic oxidations. − However, only a 13% yield was obtained by using acetonitrile as the solvent (Table , entry 11). Using dimethyl sulfoxide (DMSO), N , N -dimethylformamide (DMF), or methanol (MeOH) as the solvent provided only a trace amount (Table , entry 12).…”

The role of trace N-Oxyl compounds as redox mediator in enhancing antiviral ribavirin elimination in UV/Chlorine process

“…Thus, the NHPI-PINO cycle is formed as shown in Fig.S14 and Eq. (2) , which is deeply depended on radicals and oxidants [23] , [43] , [53] . …”

“…NHPI, likewise, could also be oxidized into phthalimide N-oxyl (PINO), which is conductive to extract hydrogen atoms from relatively weak C-H bonds in the functional groups such as allyl and benzyl groups [19] , [20] , [21] , [22] . Recent literatures mentioned that TEMPO + derived from TEMPO by Mn(VII) oxidation could degrade organic pollutants, and isopropylbenzene could also be oxidized by the system of NHPI, Fe(acac) 3 and 1,10-phenanthroline [19] , [23] . However, currently the N-Oxyl redox mediators are mainly used in non-illuminated AOPs, such as Fenton-like processes or electrochemical processes.…”

Highly crystalline K-intercalated Se/C: an easily accessible mesoporous material catalyzing the epoxidation of β-ionone

“…21 The generated hydroxyl radicals could react with 3 to give the intermediate 6 , which could also furnish the radical 5 via the reaction with PINO radicals. 22 Bearing an electron-withdrawing carbonyl, the α,β-CC bond was less active than the electron-enriched endocyclic γ,δ-CC, the interaction of which with the carbon support might lead to the intermediate state species 7 . 16 This determined the regioselectivity of the reaction.…”