Ruthenium-catalyzed hydroarylation reactions as the strategy towards the synthesis of alkylated arenes and substituted alkenes

S Thowfik, CMA Afsina, G Anilkumar - RSC advances, 2023 - pubs.rsc.org
Metal-catalyzed hydroarylation reactions are always powerful tools in organic synthesis
since they can form C–C or C-heteroatom bonds in an atom and step economic manner …

Unsymmetrical relay C–H alkenylation and [2+ 2] cycloaddition of N-arylsydnones with allenyl acetates leading to quinoline-fused cyclobutanes

X Song, K Wang, X Zhang, X Fan - Organic Chemistry Frontiers, 2023 - pubs.rsc.org
In spite of the prevalence of fused cyclobutane skeletons in natural products and
pharmaceuticals, synthetic strategies for their assembly from simple starting materials still …

Redox-Neutral Ruthenium (II)-Catalyzed Enol-Directed Arene C–H Alkylation with Maleimides

S Mondal, R Bera, D Chowdhury, S Dana… - Organic …, 2022 - ACS Publications
An enol-assisted regioselective arene C–H alkylation with maleimides is developed under
redox-neutral ruthenium (II) catalysis, offering a wide variety of valuable 3-aryl succinimides …

Ru(II)-Catalyzed Regioselective Annulation of 2-Hydroxystyrenes with Allenyl Acetates via Vinylic C–H Activation

A Singh, RK Shukla, CMR Volla - Organic Letters, 2022 - ACS Publications
Herein, we disclose an unprecedented and robust Ru (II)-catalyzed non-oxidative [5+ 1]
annulation of 2-hydroxystyrenes with allenyl acetates to access biologically relevant …

Study on the Mechanism of Ru-Catalyzed Cyclization of Aromatic Amides with Allylphosphine Oxides

W Yan, Q Cheng, Y Jiao, CT Cao… - The Journal of Organic …, 2023 - ACS Publications
The mechanism of Ru-catalyzed cyclization of aromatic amides with allylphosphine oxides is
studied by density functional theory calculation (DFT). The results show that, first, a 5 …

Pyrazolidinone-Aided Ru (II)-Catalyzed Regioselective C–H Annulation with Allenes

GS Sontakke, AK Chaturvedi, D Jana… - Organic Letters, 2024 - ACS Publications
Regioselective annulation of allenes via C–H activation represents an elegant synthetic
approach toward the construction of valuable scaffolds. Considering the importance of …

One-Pot Cascade Access to Ru(II)-Catalyzed Regioselective C(sp2)-H Activation/Alkenylation of Chromeno[4,3-c]pyrazol-4-ones and Their Emission Solvatochromic …

D Singla, K Paul - The Journal of Organic Chemistry, 2022 - ACS Publications
Herein, one-pot cascade synthesis of chromeno [4, 3-c] pyrazol-4-ones and their Ru (II)-
catalyzed regioselective ortho-alkenylation using imine as a weak directing group are done …

Synthesis of structurally diverse pyrazolo [1, 2-a] pyrazolones based on the selective C–H bond alkenylation–annulation of 1-arylpyrazolidinones with allenyl acetates

Y Xin, Q Zhou, B Li, B Cheng, X Zhang… - Organic Chemistry …, 2024 - pubs.rsc.org
Presented herein is a concise synthesis of structurally diverse pyrazolo [1, 2-a] pyrazolones
based on condition-controlled divergent reactions of 1-arylpyrazolidinones with allenyl …

Organocatalytic Electrophilic Arene Amination: Rapid Synthesis of 2‐Quinolones

L Kürti, TK Das, A Ghosh, Z Grimm… - … –A European Journal - Wiley Online Library
For decades, the synthesis of 2‐quinolones, a crucial structural motif in pharmaceuticals and
agrochemicals, has relied heavily on costly noble metal complexes and structurally complex …

Ruthenium-Catalyzed Synthesis of Isoquinolinones from Allenylphosphine Oxides and Aromatic Amides

M Reed, MAJ Miah - Synfacts, 2022 - thieme-connect.com
Significance: Reported is a ruthenium-catalyzed synthesis of NH-free isoquinolinones 3 by a
[4+ 2] annulation of aromatic amides 1 with allenylphosphine oxides 2. The method permits …