Excited-state antiaromaticity relief drives facile photoprotonation of carbons in aminobiphenyls

J Draženović, CJ Laconsay, N Došlić, I Judy, C Wu… - Chemical …, 2024 - pubs.rsc.org
A combined computational and experimental study reveals that ortho-, meta-and para-
aminobiphenyl isomers undergo distinctly different photochemical reactions involving proton …

One-pot synthesis to prepare lignin/photoacid nanohybrids for multifunctional biosensors and photo-triggered singlet oxygen generation

TSE Ho-Yin, CS Yeung, CY Lau, MY Cheung… - Green …, 2022 - pubs.rsc.org
This study presents a green, simple, and efficient one-pot synthesis approach for a
sustainable lignin nanoparticle biosensor (AL-Por-PP). Lignin was incorporated in a typical …

Photoinitiated Intramolecular Proton Transfer in Deprotonated para-Coumaric Acid

JN Bull, G Silva, MS Scholz, E Carrascosa… - The Journal of …, 2019 - ACS Publications
Deprotonated para-coumaric acid is commonly considered as a model for the chromophore
in photoactive yellow protein, which undergoes E→ Z isomerization following absorption of …

Conjugation, substituent, and solvent effects on the photogeneration of quinone methides

F Doria, A Lena, R Bargiggia… - The Journal of Organic …, 2016 - ACS Publications
4-and 5-arylethynyl water-soluble Mannich bases and related quaternary ammonium salts
were synthesized and investigated as a model of conjugated quinone methide precursors …

Excited-state proton transfer of 4-hydroxyl-1, 8-naphthalimide derivatives: A combined experimental and theoretical investigation

Z Qu, P Li, X Zhang, E Wang, Y Wang, P Zhou - Journal of Luminescence, 2016 - Elsevier
The photophysical properties of N-butyl-4-hydroxyl-1, 8-naphthalimide (BOH) and N-
(morpholinoethyl)− 4-hydroxy-1, 8-naphthalimide (MOH) in various solvents are presented …

Photocyclization and Photoaddition Reactions of Arylphenols via Intermediate Quinone Methides

M Lukeman, H Simon, P Wan… - The Journal of Organic …, 2015 - ACS Publications
A series of five benzannelated derivatives of 2-phenylphenol were prepared, and their
photochemistry was investigated. Two of these (3-phenyl-2-naphthol, 10, and 1-phenyl-2 …

Unusual Acetonitrile Adduct Formed via Photolysis of 4′-Chloro-2-Hydroxybiphenyl in Aqueous Solution

X Zhang, Y Guo, E Dallin, J Ma, M Dai… - The Journal of Organic …, 2020 - ACS Publications
In this work, 2, 4′-dichlorobiphenyl (1) yielded 4′-chloro-2-hydroxybiphenyl (2) after
photolysis in neutral acetonitrile aqueous (ACN–H2O) solutions. Ultrafast spectroscopic …

Direct observation of photoinduced ultrafast generation of singlet and triplet quinone methides in aqueous solutions and insight into the roles of acidic and basic sites …

J Ma, X Zhang, N Basarić… - Journal of the American …, 2017 - ACS Publications
Femtosecond time-resolved transient absorption spectroscopy experiments and density
functional theory computations were done for a mechanistic investigation of 3-(1 …

Ultrafast Adiabatic Photodehydration of 2‐Hydroxymethylphenol and the Formation of Quinone Methide

Đ Škalamera, I Antol… - … A European Journal, 2018 - Wiley Online Library
The photochemical reactivity of 2‐hydroxymethylphenol (1) was investigated experimentally
by photochemistry under cryogenic conditions, by detecting reactive intermediates by IR …

Development of lignin-based photo-responsive moiety hybrid compounds with the photophysical & photochemical properties studies and the applications

HY Tse - 2022 - theses.lib.polyu.edu.hk
Lignin is the most abundant renewable aromatic carbon on Earth. It is also an excellent
alternative source to provide the essential chemical precursors or polyphenolic carbon …