Recent visible light and metal free strategies in [2+ 2] and [4+ 2] photocycloadditions

M Sicignano, RI Rodríguez… - European Journal of …, 2021 - Wiley Online Library
When aiming to synthesize molecules with elevated molecular complexity starting from
relatively simple starting materials, photochemical transformations represent an open …

Recent advances in radical-mediated intermolecular (4+ 2) cycloaddition

XE Cai, ZY Wang, WC Tian, H Liu, WT Wei… - Organic & Biomolecular …, 2023 - pubs.rsc.org
(4+ 2) Cycloaddition plays an important role in the synthesis of versatile carbocyclic/
heterocyclic compounds with its high atom-and step-economy. Additionally, with mild …

Thioxanthylium Cations: Highly Reversible Hydrochromic Mate‐rials with Tunable Color and Moisture Sensitivity

MH Chua, XYD Soo, WP Goh, ZM Png… - … –A European Journal, 2022 - Wiley Online Library
Hydrochromic materials, which change color in response to moisture, are highly sought‐
after due to some unique applications such as moisture detection, humidity monitoring, anti …

Photochemically mediated polymerization of molecular furan and pyridine: Synthesis of nanothreads at reduced pressures

SM Oburn, S Huss, J Cox, MC Gerthoffer… - Journal of the …, 2022 - ACS Publications
Nanothreads are emerging one-dimensional sp3-hybridized materials with high predicted
tensile strength and a tunable band gap. They can be synthesized by compressing aromatic …

Catalytic pyrolysis of duckweed with phosphoric acid: Pyrolysis behavior and kinetics analysis

Y Zhu, G Huo, W Yang, H Liu, W Zhang… - Journal of Analytical and …, 2024 - Elsevier
Duckweed (DW) has a promising potential for wastewater treatment due to its outstanding
performance in the fixation of nutrient elements and heavy metals. The conversion of …

Visible‐Light‐Driven Cyclizations

E Oueis, M Elkadi, R Rios - Advanced Synthesis & Catalysis, 2024 - Wiley Online Library
In recent years, the interest to develop cyclizations promoted by visible light has been
gaining a lot of attention due to its sustainability aspect. In this review, we summarize the …

Redox Potential Controlled Selective Oxidation of Styrenes for Regio- and Stereoselective Crossed Intermolecular [2 + 2] Cycloaddition via Organophotoredox …

K Tanaka, Y Iwama, M Kishimoto, N Ohtsuka… - Organic …, 2020 - ACS Publications
A redox potential controlled intermolecular [2+ 2] cross-cycloaddition has been developed in
the presence of a thioxanthylium photoredox catalyst. Electron-rich styrenes such as β …

Visible-light-induced [4+ 2] cycloaddition of pentafulvenes by organic photoredox catalysis

K Tanaka, Y Asada, Y Hoshino, K Honda - Organic & Biomolecular …, 2020 - pubs.rsc.org
We have developed thioxanthylium photoredox catalyzed [4+ 2] cycloaddition of
pentafulvenes at room temperature under green light irradiation, which affords …

Palladium-catalyzed enantioselective [5+ 4] annulation of ortho-quinone methides and vinylethylene carbonates

C Xia, DC Wang, GR Qu, HM Guo - Organic Chemistry Frontiers, 2020 - pubs.rsc.org
Highly enantioselective [5+ 4] annulation of ortho-quinone methides with vinylethylene
carbonates has been developed by asymmetric palladium catalysis. The reaction allows for …

The coupling of alkylboronic acids with α-(trifluoromethyl) styrenes by Lewis base/photoredox dual catalysis

Y Chen, N Ni, D Cheng, X Xu - Tetrahedron Letters, 2020 - Elsevier
Under Lewis base/photoredox dual catalysis, the defluorinative alkylation of alkylboronic
acids with α-(trifluoromethyl) styrenes has been reported. In this system, both primary and …