Recent Expedition in Pd‐Catalyzed Sonogashira Coupling and Related Processes

PY Choy, KB Gan, FY Kwong - Chinese Journal of Chemistry, 2023 - Wiley Online Library
Comprehensive Summary Sonogashira cross‐coupling protocol, typically showing the
reaction between aryl/vinyl halide and terminal alkyne, has been a widely used protocol for …

Recent advances in transition metal-catalyzed reactions of chloroquinoxalines: Applications in bioorganic chemistry

GS Reddy, JS Kumar, B Thirupataiah, H Bhuktar… - Bioorganic …, 2022 - Elsevier
The importance of the quinoxaline framework is exemplified by its presence in the well-
known drugs such as varenicline, brimonidine, quinacillin, etc. In the past few years …

A 2-phenylfuro [2, 3-b] quinoxaline-triphenylamine-based emitter: photophysical properties and application in TADF-sensitized fluorescence OLEDs

XY Wang, YX Li, Y Wu, K Qin, DF Xu… - New Journal of …, 2022 - pubs.rsc.org
We have demonstrated that the T1-state energy of a fluorescence dopant (FD) is close to
that of the thermally activated delayed fluorescence (TADF)-type exciplex co-host, and the …

Bromine-Promoted One-Pot Furo[b]annulation and α-C(sp2)-Thiomethylation Cascade of (E)-3-Styrylquinoxalin-2(1H)-ones with Dimethyl Sulfoxide

VA Mamedov, NE Algaeva, VV Syakaev… - The Journal of …, 2022 - ACS Publications
A new process has been developed for the bromine-promoted sequential (sp2) C=(sp2) C
bond functionalization of (E)-3-styrylquinoxalin-2 (1 H)-ones and furo [b] annulation via the 5 …

Overcoming energy loss of thermally activated delayed fluorescence sensitized-OLEDs by developing a fluorescent dopant with a small singlet–triplet energy splitting

X Wang, Y Zhang, Z Yu, Y Wu, D Wang, C Wu… - Journal of Materials …, 2022 - pubs.rsc.org
The thermally-activated delayed fluorescence (TADF)-sensitizing-fluorescence (TSF)
strategy suffers from a disturbing energy loss caused by the T1 states of the fluorescence …

Conversion of Ketones into Blue‐Emitting Electron‐Deficient Benzofurans

K Górski, T Ostojić, M Banasiewicz… - … A European Journal, 2023 - Wiley Online Library
A novel heavy metal‐free and safe synthetic methodology enabling one‐step conversion of
ketones into corresponding 4, 5, 6, 7‐tetrafluorobenzofurans (F4BFs) has been developed …

Copper‐catalyzed multicomponent green reaction approach: Synthesis of dihydropyrano [2, 3‐c] pyrazoles and evaluation of their anti‐cancer activity

VH Kumar, R Tamminana - Journal of Heterocyclic Chemistry, 2023 - Wiley Online Library
A facile, efficient, and simple one‐pot multi‐component protocol for the synthesis of pyrano
[2, 3‐c] pyrazoles has been developed using a cheap and readily available copper catalyst …

Tandem 6π-azatriene electrocyclization of fused amino-cyclopentenones: synthesis of functionalized pyrrolo-and indolo-quinoxalines

KM Saini, RK Saunthwal, A Kumar, AK Verma - Organic Letters, 2021 - ACS Publications
A tandem 6π-azacyclization approach for the synthesis of diversified pyrrolo/indolo [1, 2-a]
quinoxalines from amino-cyclopentenones has been developed. The reaction proceeds …

Pd-Catalyzed one-pot sequential cross-coupling reactions of tetrabromothiophene

KM Saini, RK Saunthwal, AK Verma - Organic & Biomolecular …, 2017 - pubs.rsc.org
Unsymmetrical one-pot sequential cross-coupling reactions of sterically hindered
tetrabromothiophene with arylboronic acid and an alkyne/alkene to afford selective bi-, tri …

Iron-promoted sulfur sequestration for the substituent-dependent regioselective synthesis of tetrazoles and guanidines

VB Pendem, R Tamminana… - Journal of Sulfur …, 2021 - Taylor & Francis
We have established a facile and versatile synthetic methodology for the construction of
tetrazoles and guanidines in the presence of an eco-friendly, inexpensive, easily available …