Pronounced effect of pore dimension of silica support on Pd-catalyzed Suzuki coupling reaction under ambient conditions

2018 ◽  
Vol 42 (8) ◽  
pp. 6416-6426 ◽  
Author(s):  
Trisha Das ◽  
Hiroshi Uyama ◽  
Mahasweta Nandi
Keyword(s):  
Mesoporous Silica ◽  
Pore Size ◽  
Palladium Catalysts ◽  
Suzuki Reaction ◽  
Coupling Reaction ◽  
Silica Support ◽  
Ambient Conditions ◽  
Suzuki Coupling Reaction ◽  
Pore Dimension ◽  
Higher Temperature

The pore size of the mesoporous silica support affects the reactivity of heterogeneous palladium catalysts in the Suzuki reaction under ambient conditions, which is leveled at higher temperature.

scholarly journals Studies on Pd/NiFe2O4 catalyzed ligand-free Suzuki reaction in aqueous phase: synthesis of biaryls, terphenyls and polyaryls

2011 ◽  
Vol 7 ◽  
pp. 310-319 ◽  
Author(s):  
Sanjay R Borhade ◽  
Suresh Babsaheb Waghmode
Keyword(s):  
Active Catalyst ◽  
Suzuki Reaction ◽  
Reaction Times ◽  
Coupling Reaction ◽  
Solvent Mixture ◽  
Phase Synthesis ◽  
Suzuki Coupling Reaction ◽  
Arylboronic Acids ◽  
Highly Active ◽  
Ligand Free

Palladium supported on nickel ferrite (Pd/NiF2O4) was found to be a highly active catalyst for the Suzuki coupling reaction between various aryl halides and arylboronic acids. The reaction gave excellent yields (70–98%) under ligand free conditions in a 1:1 DMF/H2O solvent mixture, in short reaction times (10–60 min). The catalyst could be recovered easily by applying an external magnetic field. The polyaryls were similarly synthesized.

Recyclable graphene-supported palladium nanocomposites for Suzuki coupling reaction

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Praveenkumar Ramprakash Upadhyay ◽  
Vivek Srivastava
Keyword(s):  
Suzuki Reaction ◽  
Coupling Reaction ◽  
Phosphine Ligands ◽  
Reaction Products ◽  
Suzuki Coupling Reaction ◽  
Cross Coupling Reaction ◽  
Optimized Protocol ◽  
Reduced Graphene ◽  
Wide Range ◽  
Supported Palladium

AbstractIn the search of new materials for developing clean catalytic organic reactions, our team engineered graphene based palladium (Pd) nanocomposites and tested them as catalysts for ionic liquid mediated Suzuki cross coupling reaction. The effects of various reaction parameters, such as solvent, base, time and temperature, were investigated for the Suzuki reaction. The optimized protocol was applied to a wide range of substituted aryl/hetroaryl halides along with various aryl boronic acids and afforded the corresponding reaction products in good to excellent yield. The proposed Pd/reduced graphene oxide (rGO) catalyzed Suzuki reaction protocol was also exploited for the synthesis of unique indazole derivatives. The developed catalytic system circumvents the use of phosphine ligands, with an added advantage of easy Pd catalyst recovery up to eight times.

scholarly journals A Concise Synthesis of Rhodanthpyrone A and B, Natural 4-(Hydroxyphenyl)-substituted α-Pyrones

2017 ◽  
Vol 12 (1) ◽  
pp. 1934578X1701200
Author(s):  
Young Taek Han
Keyword(s):  
Suzuki Reaction ◽  
Coupling Reaction ◽  
Suzuki Coupling ◽  
Boronic Acids ◽  
Suzuki Coupling Reaction ◽  
Arylboronic Acids ◽  
Model Study ◽  
High Yields ◽  
Phenylboronic Acids

A concise synthesis of rhodanthpyrone A and B was accomplished via a Suzuki coupling reaction. To find the conditions appropriate to install hydroxyphenyl moieties to the α-pyrone skeleton, a model study was conducted using commercially available boronic acids. It was revealed that the hydroxy moiety of the phenylboronic acids should be concealed when reacted with labile 4-tosyl α-pyrone. Consequently, rhodanthpyrone A and B could be synthesized in high yields by Suzuki reaction using TIPS-protected arylboronic acids. This procedure provided a concise and versatile route for the synthesis of rhodanthpyrones and their 4-aryl substituted α-pyrone analogs.

Pd nanoparticles deposited on Isoniazid grafted multi walled carbon nanotubes: synthesis, characterization and application for Suzuki reaction in aqueous media

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 88916-88924 ◽  
Author(s):  
Mahsa Hajighorbani ◽  
Malak Hekmati
Keyword(s):  
Carbon Nanotubes ◽  
High Activity ◽  
Aqueous Media ◽  
Suzuki Reaction ◽  
Coupling Reaction ◽  
Pd Nanoparticles ◽  
Aryl Halides ◽  
Suzuki Coupling Reaction ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The prepared Isoniazide-MWCNTs were used to deposition of Pd NPs as novel nanocatalyst. The catalyst showed high activity in Suzuki coupling reaction of aryl halides (X = I, Br, Cl).

Sign in / Sign up

Export Citation Format

Share Document