@misc{10481/83095,
year = {2023},
month = {6},
url = {https://hdl.handle.net/10481/83095},
abstract = {A novel approach toward the obtaining of a Pd (II) carbon-supported catalyst based on a statistical distributed polymer (hyperbranched polyethyleneimine) and its use as a highly efficient and sustainable catalyst for Sonogashira-type coupling reactions is presented. The heterogenous Pd (II)/HBPEI catalyst fabricated through a facile, cost-effective and scalable procedure provides an innovative catalyst structure based on statistical distributed singular catalytic centers with well-defined Pd-Polymer chemical interactions, highly resistant to suffer leaching processes and extensively and homogenously distributed across the whole carbon surface. The catalyst exhibited excellent catalytic and recycling activity for several cross-coupling reactions between different aryl halides and terminal alkynes, free of any undesired by-product and in excellent yields, under air atmosphere, using water as solvent, at moderate temperatures (65 °C) and avoiding the use of phosphine derivatives, Cu(I) as co-catalyst and excess of any of the reactant. Therefore, the reported Pd(II)-HBPEI carbon-supported material can be considered a truly competitive heterogeneous Pd(II) catalyst for large-scale under green chemistry conditions.},
organization = {Spanish Ministry of Science & Innovation},
organization = {Junta de Andalucía MAT2009-14185-C02-01, P09-FQM-4765},
organization = {University of Jaén, CICT},
publisher = {Elsevier B.V.},
keywords = {Heterogeneous polymer-based catalyst},
keywords = {Hyperbranched polyethyleneimine},
keywords = {Palladium complexes},
keywords = {Aqueous phase catalysis},
keywords = {Sonogashira cross-coupling reaction},
title = {Carbon-supported statistically distributed polyethyleneimine/palladium (II) complexes as efficient and sustainable Sonogashira catalysts},
doi = {10.1016/j.reactfunctpolym.2023.105643},
author = {Peñas Sanjuan, Antonio and Anderson, James A. and López Garzón, Rafael and Pérez Mendoza, Manuel José and Melguizo, Manuel},
}