Synthesis and structural characterization of a palladium complex as an anticancer agent, and a highly efficient and reusable catalyst for the Heck coupling reaction under ultrasound irradiation: A convenient sustainable green protocol

Polyhedron ◽  
2020 ◽  
pp. 114924
Author(s):  
Mohamed M. El-bendary ◽  
Tamer S. Saleh ◽  
Abdullah S. Al-Bogami
Keyword(s):  
Structural Characterization ◽  
Anticancer Agent ◽  
Palladium Complex ◽  
Coupling Reaction ◽  
Ultrasound Irradiation ◽  
Reusable Catalyst ◽  
Heck Coupling ◽  
Green Protocol ◽  
Highly Efficient

scholarly journals Synthesis and characterization of a new bis-NHC palladium complex and its catalytic activity in the Mizoroki–Heck reaction

2020 ◽  
Vol 44 (11-12) ◽  
pp. 684-688
Author(s):  
Can Feng ◽  
Cheng-xin Liu ◽  
Yu-fang Wang ◽  
Jin Cui ◽  
Ming-jie Zhang
Keyword(s):  
Palladium Complex ◽  
Coupling Reaction ◽  
Aryl Halides ◽  
Heck Coupling ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Excellent Stability ◽  
C Nmr

A new bis- N-heterocyclic carbene palladium complex, (C13H9N2F2)2PdCl2, is synthesized by a three-step reaction and characterized by 1H NMR and 13C NMR spectroscopy as well as by X-ray crystallography. This new bis- N-heterocyclic carbene palladium complex has excellent stability and is capable of efficiently catalyzing the Mizoroki–Heck coupling reaction of aryl halides with acrylates.

Synthesis and Characterization of Novel PEPPSI type Pd–BICAAC Complexes

2022 ◽  
Author(s):  
Márton Nagyházi ◽  
Balázs Almási ◽  
Ádám Lukács ◽  
Attila Bényei ◽  
Tibor Nagy ◽  
...  
Keyword(s):  
High Activity ◽  
Coupling Reaction ◽  
Kinetic Studies ◽  
Elemental Mercury ◽  
Palladium Complexes ◽  
Synthesis And Characterization ◽  
Heck Coupling ◽  
Moisture Resistant

A series of bicyclic alkylamino carbenes (BICAAC) (where N-aryl = dipp, mes, 2,6-dimethyl-4-(dimethylamino)phenyl, 5a-d) and their novel air- and moisture-resistant pyridine (pyridine, 4 dimethylaminopyridine) containing palladium PEPPSI-type Pd(II) complexes (6a-e) were synthetized and characterized. The new palladium complexes have shown high activity in Mizoroki–Heck coupling reaction even at as low as 100 ppm loading (TON up to 10000). Kinetic studies revealed that reactions carried out in the presence of elemental mercury resulted in decrease in activity. It indicates that the coupling reaction may have both molecular and Pd(0)-mediated catalytic paths.

Metallosurfactant based Pd–Ni alloy nanoparticles as a proficient catalyst in the Mizoroki Heck coupling reaction

2018 ◽  
Vol 20 (7) ◽  
pp. 1506-1514 ◽  
Author(s):  
Navneet Kaur ◽  
Gurpreet Kaur ◽  
Aman Bhalla ◽  
Jaspreet S. Dhau ◽  
Ganga Ram Chaudhary
Keyword(s):  
Coupling Reaction ◽  
Alloy Nanoparticles ◽  
Heck Coupling ◽  
Highly Efficient ◽  
Ni Alloy

A highly efficient, operationally simple, green catalytic approach using Pd–Ni alloy nanoparticles for Mizoroki Heck coupling.

Design, preparation and characterization of aerogel NiO–CuO–CoO/SiO2 nanocomposite as a reusable catalyst for C–N cross-coupling reaction

2020 ◽  
Vol 44 (13) ◽  
pp. 5056-5063
Author(s):  
Amir Hossein Ghasemi ◽  
Hossein Naeimi
Keyword(s):  
Sol Gel ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Supercritical Drying ◽  
Reusable Catalyst ◽  
Drying Method ◽  
Cross Coupling Reaction ◽  
Powerful Process

The aerogel nanocomposite produces using the sol–gel and supercritical drying method processes. The CO2 supercritical drying (SCD) was taken as the most powerful process, ensuring the best properties of the product.

scholarly journals Synthesis and Optoelectronic Characterization of Some Star-Shaped Oligomers with Benzene and Triphenylamine Cores

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Teofilia Ivan ◽  
Loredana Vacareanu ◽  
Mircea Grigoras
Keyword(s):  
Electrochemical Polymerization ◽  
Coupling Reaction ◽  
Aromatic Aldehydes ◽  
Thermal Characterization ◽  
Cyclic Voltammograms ◽  
Heck Coupling ◽  
Molecular Glasses ◽  
H Nmr ◽  
Ft Ir

Six star-shaped oligomers containing triphenylamine (D1–D3) and benzene unit (D4–D6) as cores have been synthesized by Wittig condensation or Heck coupling reaction using aromatic aldehydes and triphenylphosphonium salts or aromatic halogenated compounds with vinyl triphenylamine. All oligomers have well-defined molecular structure and high purity. Characterization of the oligomers was made by FT-IR, 1H-NMR spectroscopy, UV-Vis, and fluorescence spectroscopy. The electrochemical behavior was studied by cyclic voltammetry (CV). The cyclic voltammograms have revealed that oligomers undergo quasireversible or irreversible redox processes. The irreversible process is associated with electrochemical polymerization of oligomers by dimerization of unsubstituted triphenylamine groups. Thermal characterization was accomplished by TGA and DSC methods and evidenced that all oligomers were stable materials until 250°C and have formed stable molecular glasses after first heating scan.

scholarly journals A Fast, Highly Efficient, and Green Protocol for Synthesis of Biscoumarins Catalyzed by Silica Sulfuric Acid Nanoparticles as a Reusable Catalyst

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Bahareh Sadeghi ◽  
Tayebe Ziya
Keyword(s):  
Sulfuric Acid ◽  
Aromatic Aldehyde ◽  
High Yield ◽  
Reusable Catalyst ◽  
Silica Sulfuric Acid ◽  
Green Protocol ◽  
Highly Efficient

Silica sulfuric acid nanoparticles have been prepared and shown to efficiently catalyse the reaction between an aromatic aldehyde or phenylglyoxal and a 4-hydroxycoumarin at reflux in EtOH to afford the biscoumarin derivatives in high yield.

An immobilized symmetrical bis-(NHC) palladium complex as a highly efficient and recyclable Suzuki–Miyaura catalyst in aerobic aqueous media

2017 ◽  
Vol 46 (2) ◽  
pp. 539-546 ◽  
Author(s):  
Tahshina Begum ◽  
Manoj Mondal ◽  
Manash Protim Borpuzari ◽  
Rahul Kar ◽  
Golap Kalita ◽  
...  
Keyword(s):  
Palladium Complex ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Recyclable Catalyst ◽  
Highly Efficient ◽  
Cross Coupling Reaction ◽  
Aqueous Conditions

A novel palladium-silica complex was prepared and characterized. This complex is a highly efficient and easily recyclable catalyst for Suzuki–Miyaura cross-coupling reaction under mild aqueous conditions, and can be reused efficiently up to 6 consecutive runs.

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