13438-45-4Relevant articles and documents
Catalytic dehydration of sorbitol to isosorbide in the presence of metal tosylate salts and metallized sulfonic resins
Dussenne, Corentin,Wyart, Hervé,Wiatz, Vincent,Suisse, Isabelle,Sauthier, Mathieu
, p. 61 - 66 (2018/12/11)
Homogeneous catalytic dehydration of sorbitol to isosorbide has been performed with a series of metal tosylates as catalysts. Conversions up to 100 % and selectivities into isosorbide up to 67% were obtained with Bi(OTs)3. The metals were exchanged with acidic sites of sulfonic resins and the resulting materials were evaluated as heterogeneous catalysts. On the contrary to their homogeneous counter parts, the heterogenized metal sites are non-active. The catalytic activity of the modified resins was systematically diminished in comparison to the native resins. The inhibition is greatly dependent on the nature of the metal and, on a larger extent, of the used resin for the cation exchange.
Catalysis of the acylation of aromatic derivatives by metallic tosylates
Morizur, Vincent,Szafranek, Jessica,Bonhomme, Dominique,Olivero, Sandra,Desmurs, Jean Roger,Du?ach, Elisabet
supporting information, p. 6813 - 6817 (2015/08/24)
A series of metallic tosylates were prepared by ultrasonic metal activation and were further used as efficient catalysts for the acylation of aromatic derivatives.
PROCESS FOR PRODUCTION OF ZINC TOLUENESULFONATE, ZINC TOLUENESULFONATE, AND PROCESS FOR PRODUCTION OF CARBAMATE
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Page/Page column 8-9, (2012/10/18)
A process for producing zinc toluenesulfonate comprising reacting a zinc compound comprising Zn(OH)2 with toluenesulfonic acid and/or a salt thereof in the presence of an alcohol having 1 to 20 carbon atoms in total at a temperature higher than
Temperature Dependence of the Crystal Structure and EPR Spectrum of Bis(1,3,5-Trihydroxycyclohexane)copper(II) Tosylate. A Unified Interpretation Using a Model of Dynamic Vibronic Coupling
Bebendorf, Joachim,Buergi, Hans-Beat,Gamp, Eduard,Hitchman, Michael A.,Murphy, Angela,Reinen, Dirk,Riley, Mark J.,Stratemeier, Horst
, p. 7419 - 7429 (2008/10/09)
The crystal structure of bis(1,3,5-trihydroxycyclohexane)copper(II) tosylate is reported at temperatures of 293, 233,188,163, and 93 K, as are the structures of theZn(II) andNi(II) analogues at room temperature for comparison. The isomorphous compounds are triclinic, space group P1, with one formula unit in the unit cell. The unit cell parameters of the Cu compound at 293 K are a = 6.456(5) A,b = 9.505(3) A, c = 12.544(3) A, α = 76.57(2)°, β = 87.48(4)°, γ = 76.65(4)°. The centrosymmetric ZnO6 and NiO6 octahedra are tetragonally compressed with a slight orthorhombic distortion. The Cu2+ polyhedra exhibit similar geometries, but with considerably larger deviations from a regular octahedron. Two of the three independent Cu-O bond lengths and two of the g-values change significantly as a function of temperature. A model of dynamic vibronic coupling is presented which explains both the EPR and structural data. Vibronic wave functions associated with a Jahn-Teller potential energy surface modified by an orthorhombic lattice strain are given. The temperature dependence of the structures is calculated from the nuclear parts and that of the g-values from the electronic parts of the wave functions. The temperature dependence of the structures and g-values is also interpreted using a simpler model involving an equilibrium between two forms of the complex which differ solely in their orientation in the crystal lattice, and the results of the two approaches are compared.