Access to 2′-Substituted Binaphthyl Monoalcohols via Complementary Nickel-Catalyzed Kumada Coupling Reactions under Mild Conditions: Key Role of a P,O Ligand

2013 ◽  
Vol 78 (11) ◽  
pp. 5694-5699 ◽  
Author(s):  
Sachin Handa ◽  
Yohan L. N. Mathota Arachchige ◽  
LeGrande M. Slaughter
Keyword(s):  
Coupling Reactions ◽  
Mild Conditions

Highly selective Suzuki reaction catalysed by a molecular Pd-P-MOF catalyst under mild conditions: role of ligands and palladium speciation

2022 ◽  
Author(s):  
Daniele Cartagenova ◽  
Stephan Bachmann ◽  
Kurt Püntener ◽  
Michelangelo Scalone ◽  
Mark A Newton ◽  
...  
Keyword(s):  
Large Scale ◽  
State Of The Art ◽  
Suzuki Reaction ◽  
Cross Coupling ◽  
Palladium Complexes ◽  
Fine Chemicals ◽  
Coupling Reactions ◽  
Mild Conditions ◽  
Cross Coupling Reactions

Cross-coupling reactions are a fundamental tool in the large scale synthesis of pharma-, agro- and fine chemicals. Homogeneous palladium complexes remain the state-of-the-art catalysts even though the use of heterogeneous...

Chiral Mn(III) Salen Complex Immobilized on CuFe2O4@SiO2-NH2 NPs: A Cheap and Efficient Catalyst for N-arylation of Aryl Halides and Phenylboronic Acid Under Mild Conditions

2020 ◽  
Vol 17 (11) ◽  
pp. 857-863
Author(s):  
Mohammad Ali Nasseri ◽  
Seyyedeh Ameneh Alavi ◽  
Milad Kazemnejadi ◽  
Ali Allahresani
Keyword(s):  
Phenylboronic Acid ◽  
Significant Loss ◽  
Aryl Halides ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Aryl Chlorides ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Salen Complex ◽  
Ft Ir

A convenient and efficient chiral CuFe2O4@SiO2-Mn(III) Ch.salen nanocatalyst has been developed for the C-N cross-coupling reactions of aryl halides/ phenylboronic acid with N-heterocyclic compounds in water and/or DMSO under mild conditions. The catalyst could be applied for the N-arylation of a variety of nitrogen-containing heterocycles with aryl chlorides, bromides, iodides and phenylboronic acid under mild conditions. Moderate to good yields were achieved for all substrates. The structure of catalyst was characterized using various techniques including FT-IR, FE-SEM, EDX, XRD, TEM and TGA. The catalyst can be simply recovered and reused for several times without significant loss of activity.

Unprecedentedly high efficiency for photocatalytic conversion of methane to methanol over Au–Pd/TiO2 – what is the role of each component in the system?

2021 ◽  
Author(s):  
Xiaojiao Cai ◽  
Siyuan Fang ◽  
Yun Hang Hu
Keyword(s):  
Methane Conversion ◽  
High Efficiency ◽  
Mild Conditions ◽  
Highly Efficient ◽  
System P ◽  
Conversion Of Methane

Direct and highly efficient methane conversion to methanol under mild conditions is achieved via photocatalysis over Au–Pd/TiO2.

scholarly journals Design, synthesis, molecular docking, and in vitro α-glucosidase inhibitory activities of novel 3-amino-2,4-diarylbenzo[4,5]imidazo[1,2-a]pyrimidines against yeast and rat α-glucosidase

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fariba Peytam ◽  
Ghazaleh Takalloobanafshi ◽  
Toktam Saadattalab ◽  
Maryam Norouzbahari ◽  
Zahra Emamgholipour ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Docking Study ◽  
Rat Small Intestine ◽  
Molecular Docking Study ◽  
Design Synthesis ◽  
Mild Conditions ◽  
Glucosidase Inhibitors ◽  
Inhibitory Activities

AbstractIn an attempt to find novel, potent α-glucosidase inhibitors, a library of poly-substituted 3-amino-2,4-diarylbenzo[4,5]imidazo[1,2-a]pyrimidines 3a–ag have been synthesized through heating a mixture of 2-aminobenzimidazoles 1 and α-azidochalcone 2 under the mild conditions. This efficient, facile protocol has been resulted into the desirable compounds with a wide substrate scope in good to excellent yields. Afterwards, their inhibitory activities against yeast α-glucosidase enzyme were investigated. Showing IC50 values ranging from 16.4 ± 0.36 µM to 297.0 ± 1.2 µM confirmed their excellent potency to inhibit α-glucosidase which encouraged us to perform further studies on α-glucosidase enzymes obtained from rat as a mammal source. Among various synthesized 3-amino-2,4-diarylbenzo[4,5]imidazo[1,2-a]pyrimidines, compound 3k exhibited the highest potency against both Saccharomyces cerevisiae α-glucosidase (IC50 = 16.4 ± 0.36 μM) and rat small intestine α-glucosidase (IC50 = 45.0 ± 8.2 μM). Moreover, the role of amine moiety on the observed activity was studied through substituting with chlorine and hydrogen resulted into a considerable deterioration on the inhibitory activity. Kinetic study and molecular docking study have confirmed the in-vitro results.

scholarly journals Pd–Ni Bimetallic Nanoparticles Supported on Zro2 as an Efficient Catalyst for Suzuki–Miyaura Reactions

2018 ◽  
Vol 42 (8) ◽  
pp. 419-423
Author(s):  
Li-Jie Zhang ◽  
Xian Yao ◽  
Ying-xin Sun ◽  
Jia-wei Zhang ◽  
Chun Cai
Keyword(s):  
Reduction Method ◽  
Bimetallic Nanoparticles ◽  
Bimetallic Catalyst ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
Coupling Reactions ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Excellent Catalytic Performance

Pd–Ni bimetallic nanoparticles (BMNPs) supported on ZrO2 were prepared by an impregnation–reduction method. The BMNPs showed excellent catalytic performance in Suzuki carbon–carbon cross-coupling reactions and almost quantitative conversion of the substrates was obtained under mild conditions in the absence of ligand. The excellent catalytic performance of the bimetallic catalyst could be a result of the synergistic effect between the two metal components. The catalyst showed outstanding recyclability during the reaction process; no obvious decrease in catalytic performance was observed after five cycles.

Efficient symmetrical bidentate dioxime ligand-accelerated homogeneous palladium-catalyzed Suzuki–Miyaura coupling reactions of aryl chlorides

2017 ◽  
Vol 41 (1) ◽  
pp. 372-376 ◽  
Author(s):  
Jinyi Song ◽  
Hongyan Zhao ◽  
Yang Liu ◽  
Huatao Han ◽  
Zhuofei Li ◽  
...  
Keyword(s):  
High Activity ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Bidentate Ligands ◽  
Aryl Chlorides ◽  
Arylboronic Acids ◽  
Mild Conditions ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed

A series of N,O-bidentate ligands were synthesized and studied as high activity ligands for palladium-catalyzed Suzuki–Miyaura cross-coupling reactions of aryl chlorides with arylboronic acids under mild conditions.

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