Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Jochanan Blum"'
Autor:
Zackaria Nairoukh, Reinhard Schomäcker, Jochanan Blum, I. Volovych, David Avnir, Yasemin Kasaka, Monzer Fanun, Michael Schwarze
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 393:210-221
Sol–gel supported palladium catalysts are investigated for the Heck coupling reaction between styrene and iodo-/bromobenzene to trans-stilbenes in o/w-microemulsions as alternative reaction medium. High conversions and selectivities are obtained wi
Autor:
Monzer Fanun, Jochanan Blum, I. Volovych, Michael Schwarze, Reinhard Schomäcker, Zackaria Nairoukh
Publikováno v:
Catalysis Communications. 53:1-4
Tandem catalytic systems containing one or two sol-gel immobilized catalysts were successfully applied in the synthesis of trans-stilbene oxide and 1,2-diphenylethane. The catalysts were prepared from palladium and/or manganese precursors in the pres
Autor:
Zackaria Nairoukh, Jochanan Blum
Publikováno v:
The Journal of Organic Chemistry. 79:2397-2403
In the course of our studies toward the development of new heterogeneous conditions for better controlling regioselectivity in organic reactions, we investigated the application of sol-gel immobilized organometallic catalyst for regioselective hydroa
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 382:93-98
In the course of our attempts to develop sustainable conditions for the catalytic organic reactions by replacement of the traditional but environmentally disfavored organic solvents by water, we studied the cyclotrimerizations of alkynes, in aqueous
Autor:
Jochanan Blum, Michael Schwarze, Reinhard Schomäcker, Shirel Dahoah, Zackaria Nairoukh, Monzer Fanun
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 380:90-93
In the course of our attempts to replace harmful solvents in organic processes by environmentally favored media, we investigated the use of aqueous microemulsions for catalytic decarbonylation of different kinds of aldehydes. The aldehydes were solub
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 366:359-367
Itaconic acid and some of its derivates were hydrogenated with sol–gel entrapped Rh/BPPM catalysts in methanol solutions. The immobilization process was carried out by different gel building agents: hydrophilic tetramethyl orthosilicate Si(OMe)4 (T
Autor:
Michael Schwarze, Charlie Batarseh, Zackaria Nairoukh, Reinhard Schomäcker, Iryna Volovych, Jochanan Blum, Monzer Fanun
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 366:210-214
In the course of our attempts to replace harmful organic solvents used in organic processes by environmentally favored media, we investigated the transfer hydrogenation of various, unsaturated substrates by cyclohexene and similar water-insoluble hyd
Autor:
Jochanan Blum, Zackaria Nairoukh
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 358:129-133
Two methods for selective hydroformylation of vinylarenes in aqueous media are described. One method relies on the application of [Rh(cod)Cl] 2 and a tertiary phosphane entrapped within an ionic liquid-confined silica sol–gel support. The second me
Autor:
Tehila Yosef, Jochanan Blum, Michael Schwarze, Monzer Fanun, Faina Gelman, Reinhard Schomäcker
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 351:46-51
In the course of our attempts to replace the traditional, but harmful, organic solvents in synthetic processes by environmentally favored benign media, we studied the disproportionation of hydrophobic vicinal dihydroarenes in water. This reaction tak
Autor:
David Avnir, Diana Meltzer, Inna Popov, Reinhard Schomäcker, Jochanan Blum, Monzer Fanun, Michael Schwarze, Vitaly Gutkin
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 335:8-13
In the course of our attempts to replace the traditional but environmentally disfavored organic solvents in organic processes by water, we studied the double bond isomerization of hydrophobic allylarenes, in aqueous microemulsions. The catalyst for t