title: Cu(I)-USY as a Ligand-Free and Recyclable Catalytic System for the Ullmann-Type Diaryl Ether Synthesis.
abstract: The catalytic potential of copper(I)-exchanged zeolites was evaluated in the Ullmann-type synthesis of diaryl ethers. Among four investigated zeolites (i.e., USY, MOR, β, and ZSM5), Cu(I)-USY was the best catalyst and proved efficient under ligand-free conditions in toluene at 120 °C. Cu(I)-USY was also easy to recover and was recyclable up to five times without significant loss of activity.
authors: Institut des Technologies Avancées en sciences du Vivant (ITAV) - Centre Pierre Potier, CNRS-USR3505, Université de Toulouse , 1 place Pierre Potier, BP 50624, Toulouse, 31106 Cedex 1, France.
authors: Valentin
authors: V
authors: Magné
authors: Institut des Technologies Avancées en sciences du Vivant (ITAV) - Centre Pierre Potier, CNRS-USR3505, Université de Toulouse , 1 place Pierre Potier, BP 50624, Toulouse, 31106 Cedex 1, France.
authors: Tony
authors: T
authors: Garnier
authors: Institut des Technologies Avancées en sciences du Vivant (ITAV) - Centre Pierre Potier, CNRS-USR3505, Université de Toulouse , 1 place Pierre Potier, BP 50624, Toulouse, 31106 Cedex 1, France.
authors: Mathieu
authors: M
authors: Danel
authors: LAboratoire de SYnthèse, Réactivité Organique et Catalyse (LASYROC) - Institut de Chimie, CNRS-UMR7177, Université de Strasbourg , 4 rue Blaise Pascal, 67070 Strasbourg, France.
authors: Patrick
authors: P
authors: Pale
authors: Institut des Technologies Avancées en sciences du Vivant (ITAV) - Centre Pierre Potier, CNRS-USR3505, Université de Toulouse , 1 place Pierre Potier, BP 50624, Toulouse, 31106 Cedex 1, France.|Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique (LSPCMIB) - CNRS-UMR5068, Université de Toulouse , 118 route de Narbonne, Toulouse 31062 Cedex 9, France.
authors: Stefan
authors: S
authors: Chassaing