Ultrasounds in Melted Poly(ethylene glycol) Promote Copper‐Catalyzed Cyanation of Aryl Halides with K4[Fe(CN)6]
- 12 February 2014
- journal article
- research article
- Published by Wiley in ChemSusChem
- Vol. 7 (3) , 919-924
Abstract
Melted poly(ethylene glycols) (PEGs) were used for the first time as solvent for the sonochemically promoted cyanation of aryl halides employing inexpensive and safe K4[Fe(CN)6] and a relatively low amount of Cu‐based catalyst. The Mw (weight‐average polymer molecular weight) of PEG proved to notably influence the substrate conversion, which is indicative of a strong dependence of the sonication efficacy on solvent properties. Gel permeation chromatography (GPC), X‐ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) contributed to the characterization of the polymer and the elucidation of the catalytic system.Keywords
This publication has 47 references indexed in Scilit:
- A General, Practical Palladium‐Catalyzed Cyanation of (Hetero)Aryl Chlorides and BromidesAngewandte Chemie International Edition, 2013
- A General, Practical Palladium‐Catalyzed Cyanation of (Hetero)Aryl Chlorides and BromidesAngewandte Chemie, 2013
- Batch and Continuous Ultrasound Assisted Extraction of Boldo Leaves (Peumus boldus Mol.)International Journal of Molecular Sciences, 2013
- Copper-catalyzed cyanation of benzyl chlorides with non-toxic K4[Fe(CN)6]Tetrahedron Letters, 2012
- Das Auslösen und Steuern chemischer Reaktionen durch UltraschallAngewandte Chemie, 2007
- A Microwave‐Assisted Heck Reaction in Poly(ethylene glycol) for the Synthesis of BenzazepinesEuropean Journal of Organic Chemistry, 2006
- Sonochemical preparation of HgSe nanoparticles by using different reductantsMaterials Letters, 2003
- Electrochemical reduction of noble metal species in ethylene glycol at platinum and glassy carbon rotating disk electrodesSolid State Ionics, 1999
- Poly[Ethylene Glycol] Derivatives as Phase Transfer Catalysts and Solvents for Organic ReactionsJournal of Macromolecular Science, Part C: Polymer Reviews, 1988
- Cyanation of aromatic halidesChemical Reviews, 1987