Insights into 4,4′‐Arylmethylene‐Bis‐1H‐Pyrazol‐5‐Ols Scaffolds: Various Synthetic Routes and Their Applications

AB Kanagare, MSAR Yadav, AP Katariya… - …, 2023 - Wiley Online Library
Pyrazole and its derivatives have grown in prominence over the past three decades due to
their remarkable therapeutic effects and robust pharmacological potency. This review …

Iridium (III)-catalyzed tandem annulation synthesis of pyrazolo [1, 2-α] cinnolines from pyrazolones and sulfoxonium ylides

CF Liu, M Liu, L Dong - The Journal of Organic Chemistry, 2018 - ACS Publications
A highly efficient iridium-catalyzed cascade annulation of pyrazolones and sulfoxonium
ylides to access various pyrazolo [1, 2-α] cinnoline derivatives has been achieved. This …

C− H Functionalization Reactions of 1‐Aryl‐5‐pyrazolones

VB Purohit, RV Prajapati, VD Prajapati… - European Journal of …, 2022 - Wiley Online Library
In this contribution, we provide a comprehensive overview on the C− H activation/
functionalization reactions of 1‐aryl‐5‐pyrazolones, in particular, 1‐aryl‐3‐methyl‐1H …

Palladium N-Heterocyclic Carbene Complex of Vitamin B1 Supported on Silica-Coated Fe3O4 Nanoparticles: A Green and Efficient Catalyst for C–C Coupling

F Rafiee, N Mehdizadeh - Catalysis Letters, 2018 - Springer
Abstract Fe 3 O 4@ SiO 2 nanoparticles were prepared by hydrolysis of TEOS in the
presence of Fe 3 O 4 nanoparticles that were synthesized through co-precipitation …

Synthesis and investigation of catalytic activity of phenylene–And biphenylene bridged bimetallic Palladium-PEPPSI complexes

F İmik, S Yaşar, İ Özdemir - Journal of Organometallic Chemistry, 2019 - Elsevier
A series of phenylene and biphenylene-bridged N-heterocyclic carbene (NHC) and their
bimetallic NHC–Pd-PEPPSI complexes were reported and fully characterized by 1 H NMR …

Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols

XL Luo, D Ge, ZL Yu, XQ Chu, P Xu - RSC advances, 2021 - pubs.rsc.org
A straightforward aerobic oxidative esterification of aryl aldehydes with alcohols has been
developed for the synthesis of substituted esters by employing vitamin B1 as a cost-effective …

Microwave‐Assisted Palladium‐catalyzed double C−H Activation: One‐pot Synthesis of Benzo[a]imidazo[5,1,2‐cd]indolizines from 2‐Phenylimidazo[1,2‐a]pyridines …

RV Prajapati, VD Prajapati, VB Purohit… - …, 2022 - Wiley Online Library
A facile synthetic strategy has been established for the microwave‐assisted construction of
two C− C bond via regioselective double arylation of imidazo [1, 2‐a] pyridines with 1, 2 …

Construction of pyrazolone analogues via rhodium-catalyzed C–H activation from pyrazolones and non-activated free allyl alcohols

JS Sun, YY Wang, M Liu, J Zhang, CF Liu… - Organic Chemistry …, 2019 - pubs.rsc.org
Highly efficient rhodium (III) catalysis was developed for obtaining structurally divergent
pyrazolone analogues from pyrazolones and non-activated free allyl alcohols. Notably, this …

Immobilization of vitamin B1 on the magnetic dialdehyde starch as an efficient carbene-type support for the copper complexation and its catalytic activity examination

F Rafiee, M Abbaspour, GM Ziarani - Reactive and Functional Polymers, 2022 - Elsevier
Since the starch biopolymer is an available and inexpensive matrix with modifiable
functionality and stabilization capability for metal ions, in this report, we oxidized it to …

[HTML][HTML] Iron-catalysed C–H ortho-arylation of edaravone, a promising monoamine oxidase-B inhibitor

S Asghar, M Manzotti, A Atkins, S Tailor, HA Sparkes… - Tetrahedron, 2024 - Elsevier
Edaravone is a neuroactive drug that is currently used in the treatment of stroke patients and
shows promise against a range of neurodegenerative processes including amyotrophic …