Green synthesis of palladium nanoparticles using Hibiscus sabdariffa L. flower extract: Heterogeneous and reusable nanocatalyst in Suzuki coupling reactions

2017 ◽  
Vol 31 (11) ◽  
Author(s):  
Malak Hekmati ◽  
Fahimeh Bonyasi ◽  
Hadis Javaheri ◽  
Saba Hemmati
Keyword(s):  
Green Synthesis ◽  
Palladium Nanoparticles ◽  
Suzuki Coupling ◽  
Hibiscus Sabdariffa ◽  
Coupling Reactions ◽  
Flower Extract

Organostannoxane-Supported Palladium Nanoparticles. Highly Efficient Catalysts for Suzuki-Coupling Reactions

2009 ◽  
Vol 28 (20) ◽  
pp. 5883-5888 ◽  
Author(s):  
Vadapalli Chandrasekhar ◽  
Ramakirushnan Suriya Narayanan ◽  
Pakkirisamy Thilagar
Keyword(s):  
Palladium Nanoparticles ◽  
Suzuki Coupling ◽  
Coupling Reactions ◽  
Highly Efficient ◽  
Supported Palladium

Malus domestica Mediated Synthesis of Palladium Nanoparticles and Investigation of Their Catalytic Activity Towards the Suzuki Coupling Reactions

2018 ◽  
Vol 10 (3) ◽  
pp. 373-377 ◽  
Author(s):  
Farah Qazi ◽  
Zakir Hussain ◽  
Soneela Asghar ◽  
Ghayoor Abbas ◽  
Muhammad Riaz
Keyword(s):  
Gas Chromatography ◽  
Catalytic Activity ◽  
Malus Domestica ◽  
Palladium Nanoparticles ◽  
Suzuki Coupling ◽  
Coupling Reactions ◽  
X Rays ◽  
Fruit Extract ◽  
Vis Spectroscopy ◽  
Ft Ir

Synthesis of nanoparticles through green methods is considered to be more eco-friendly and facile as compared to conventional physical and chemical methods. In this work, an environmental friendly method to synthesize palladium nanoparticles (Pd-NPs) by using a fruit extract has been reported. This extract obtained from Malus domestica (apple); acted as a source of reducing agent and functioned as a capping agent as well. The Pd-NPs were monitored and characterized by ultraviolet-visible (UV-Vis) spectroscopy; powder X-rays diffraction (XRD), scanning electron microscopy (SEM) and Fourier-transform infra-red (FT-IR) spectroscopy. FT-IR spectra revealed the presence of abundant amounts of ascorbic acid in the fruit extract which is assumed to reduce the Palladium chloride to Pd-NPs. XRD results confirmed the crystalline nature of Pd-NPs (JCPDS: No. 05-0681, space group: Fm3m (225)). These nanoparticles were further investigated for their catalytic activity towards the Suzuki coupling reactions where by employing only 2 mol% of the catalyst loading these Pd-NPs demonstrated excellent catalytic activity. Progress and completion of reactions were monitored by gas chromatography (GC) while products formed were characterized by gas chromatography-mass spectrometry (GC-MS), FT-IR as well as from their melting points data. Pd-NPs showed excellent catalytic activity; thereby suggesting their potential and scope for various other catalytic transformations.

scholarly journals Aminophosphine complex as a catalyst precursor in Suzuki coupling reactions

2008 ◽  
Vol 6 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Dongbin Zhao ◽  
Zhaofu Fei ◽  
Wee Ang
Keyword(s):  
Palladium Nanoparticles ◽  
Palladium Complex ◽  
Suzuki Coupling ◽  
Catalyst Precursor ◽  
Coupling Reactions ◽  
Reaction Media

AbstractA palladium complex with an aminophosphine ligand has been prepared and investigated as a catalyst precursor in Suzuki coupling reactions in toluene. Nanoparticles composed of elemental palladium have been isolated from the reaction media and analyzed using transmission electroscopic microscope (TEM), which shows the essential catalysts palladium nanoparticles to have a size of ca. 3.0 nm.

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