Simultaneous immobilization of a matrix containing palladium and phase transfer catalyst on silica nanoparticles: application as a recoverable catalyst for the Heck reaction in neat water

RSC Advances ◽  
2014 ◽  
Vol 4 (40) ◽  
pp. 20704-20708 ◽  
Author(s):  
Abdol R. Hajipour ◽  
Ghobad Azizi
Keyword(s):  
Silica Nanoparticles ◽  
Palladium Catalyst ◽  
Heck Reaction ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Phosphonium Salts ◽  
Neat Water ◽  
Recoverable Catalyst ◽  
Reaction In Water ◽  
Simultaneous Immobilization

Simultaneous anchoring of phosphonium salts and palladium catalyst on silica nanoparticles and the application in the Heck reaction in water is described.

Highly dispersible bis-imidazolium/WO42− modified magnetic nanoparticles: a heterogeneous phase transfer catalyst for green and selective oxidations

2016 ◽  
Vol 40 (12) ◽  
pp. 10325-10332 ◽  
Author(s):  
Nasrin Zohreh ◽  
Maryam Tavakolizadeh ◽  
Seyed Hassan Hosseini ◽  
Mahboobeh Jahani ◽  
Ali Pourjavadi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Magnetic Nanoparticles ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Recoverable Catalyst ◽  
Magnetically Recoverable Catalyst ◽  
Modified Magnetic Nanoparticles ◽  
Heterogeneous Phase

A novel magnetically recoverable catalyst was prepared in which magnetic nanoparticles were functionalized by bis-imidazolium tungstate ionic liquid molecules.

Efficient Synthesis of Chromones with Alkenyl Functionalities by the Heck Reaction

2010 ◽  
Vol 63 (11) ◽  
pp. 1582 ◽  
Author(s):  
Tamás Patonay ◽  
Attila Vasas ◽  
Attila Kiss-Szikszai ◽  
Artur M. S. Silva ◽  
José A. S. Cavaleiro
Keyword(s):  
Heck Reaction ◽  
Halogen Atom ◽  
Phase Transfer ◽  
Bromine Atom ◽  
Tetrabutylammonium Bromide ◽  
Phase Transfer Catalyst ◽  
Efficient Synthesis ◽  
Terminal Alkenes

The usefulness of the Heck reaction in the field of chromones has been demonstrated. Bromochromones with the halogen atom in their rings A and B were reacted with various terminal alkenes to give hitherto unknown alkenyl‐substituted chromones. Reactivity of the substrates was found to markedly depend on the position of the bromine atom. Under phosphine‐free conditions using a phase‐transfer catalyst additive (tetrabutylammonium bromide), shorter reaction periods and usually higher yields were obtained.

Facile preparation of palladium catalyst supported on silica nanoparticles through CS2 plasma pretreatment: Application to the Heck reaction for vinyl monomers and π-conjugated polymer synthesis

2019 ◽  
Vol 464 ◽  
pp. 63-73 ◽  
Author(s):  
Rosa Martha Jiménez-Barrera ◽  
Valente Gómez-Benítez ◽  
María Guadalupe Neira-Velázquez ◽  
José Román Torres-Lubián ◽  
Ivana Moggio ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Palladium Catalyst ◽  
Conjugated Polymer ◽  
Heck Reaction ◽  
Polymer Synthesis ◽  
Vinyl Monomers ◽  
Plasma Pretreatment ◽  
Facile Preparation

Pd@COF-QA: a phase transfer composite catalyst for aqueous Suzuki–Miyaura coupling reaction

2020 ◽  
Vol 22 (4) ◽  
pp. 1150-1155 ◽  
Author(s):  
Jian-Cheng Wang ◽  
Cong-Xue Liu ◽  
Xuan Kan ◽  
Xiao-Wei Wu ◽  
Jing-Lan Kan ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Phase Transfer ◽  
Coupling Reaction ◽  
Phase Transfer Catalyst ◽  
Composite Catalyst ◽  
Scale Level ◽  
Mild Conditions ◽  
Flow Through ◽  
Reaction In Water

A COF-based phase transfer catalyst and its continuous flow-through reactor was prepared. The obtained Pd@COF-QA can highly promote the Suzuki–Miyaura coupling reaction in water under mild conditions even at gram scale level.

Sign in / Sign up

Export Citation Format

Share Document