Proton-coupled electron transfer

MHV Huynh, TJ Meyer - Chemical Reviews, 2007 - ACS Publications
At the core of many important energy conversion processes in chemistry and biology are
oxidation-reduction reactions in which both electrons and protons are transferred. An …

H-atom transfer is a preferred antioxidant mechanism of curcumin

SV Jovanovic, S Steenken, CW Boone… - Journal of the American …, 1999 - ACS Publications
Antioxidant mechanisms of curcumin, bis (4-hydroxy-3-methoxyphenyl)-1, 6-heptadiene-3, 5-
dione, have been studied by laser flash photolysis and pulse radiolysis. The keto− enol …

Mechanistic investigation of a visible light mediated dehalogenation/cyclisation reaction using iron (iii), iridium (iii) and ruthenium (ii) photosensitizers

A Aydogan, RE Bangle, S De Kreijger… - Catalysis Science & …, 2021 - pubs.rsc.org
The mechanism of a visible light-driven dehalogenation/cyclization reaction was
investigated using ruthenium (II), iridium (III) and iron (III) photosensitizers by means of …

Photoinduced electron-transfer systems consisting of electron-donating pyrenes or anthracenes and benzimidazolines for reductive transformation of carbonyl …

E Hasegawa, S Takizawa, T Seida, A Yamaguchi… - Tetrahedron, 2006 - Elsevier
Photoinduced electron-transfer reactions of several ketone substrates were studied to
evaluate the utilities of 1, 6-bis (dimethylamino) pyrene (BDMAP), 1, 6-dimethoxypyrene …

Tandem Photoredox and Copper-Catalyzed Decarboxylative C(sp3)–N Coupling of Anilines and Imines Using an Organic Photocatalyst

G Barzanò, R Mao, M Garreau, J Waser, X Hu - Organic letters, 2020 - ACS Publications
An organic photoredox catalyst, 4CzIPN, was used in combination with a copper catalyst,
CuCl, to effect decarboxylative C (sp3)–N coupling. The coupling worked with both anilines …

Photoinduced hydrogen abstraction from phenols by aromatic ketones. A new mechanism for hydrogen abstraction by carbonyl n, π* and π, π* triplets

WJ Leigh, EC Lathioor, MJ St. Pierre - Journal of the American …, 1996 - ACS Publications
Nanosecond laser flash photolysis studies have been carried out of the kinetics of inter-and
intramolecular phenolic hydrogen abstraction by alkoxyacetophenone, 5-alkoxyindanone …

Contrastive photoreduction pathways of benzophenones governed by regiospecific deprotonation of imidazoline radical cations and additive effects

E Hasegawa, T Seida, N Chiba… - The Journal of …, 2005 - ACS Publications
In the photoreaction of benzophenones with 1, 3-dimethyl-2-phenylbenzimidazoline
(DMPBI), benzhydrols were major products. Addition of H2O accelerated the reaction with …

A reappraisal of the photopolymerization kinetics of triethyleneglycol dimethacrylate initiated by camphorquinone‐N,N‐dimethyl‐p‐toluidine for dental purposes

J Nie, LÅ Lindén, JF Rabek, JP Fouassier… - Acta …, 1998 - Wiley Online Library
This work describes the characteristics of triethyleneglycol dimethacrylate (TEGDM)
polymerization when photoinitiated by camphorquinone (CQ) alone and in the presence of …

The role of ketyl radicals in free radical photopolymerization: new experimental and theoretical insights

J Christmann, X Allonas, C Ley… - Polymer …, 2019 - pubs.rsc.org
In this work, the role of ketyl radicals produced by the abstraction of a hydrogen from an
amine by a thioxanthone-based photoinitiator is considered within the scope of the free …

Photoreduction Reaction of Carbonyl-Containing Compounds in the Synthesis and Modification of Polymers

NA Len'shina, MP Shurygina, SA Chesnokov - Polymer Science, Series B, 2021 - Springer
Photopolymerization is one of the main techniques for polymer synthesis. It is used in the
manufacture of various polymer products and coatings by stereolithography and 3D printing …