Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Eckhard Paetzold"'
Autor:
Johanna Vondran, Udo Kragl, Thomas Seidensticker, Eckhard Paetzold, Marc R. L. Furst, Andreas J. Vorholt, Robin Frauenlob
Publikováno v:
ChemCatChem. 7:4085-4090
The palladium-catalyzed aminocarbonylation of aliphatic alkenes is presented for the first time without the need for external CO pressure. N,N-dimethylformamide (DMF) is used as an in situ source of both the required carbon monoxide and the amine sub
Autor:
Joerg Radnik, Joerg Harloff, Norbert Steinfeldt, Hendrik Kosslick, Toan Van Vu, Mathias Schneider, Axel Schulz, Gerhard Fulda, Udo Kragl, Eckhard Paetzold
Publikováno v:
Applied Catalysis A: General. 468:410-417
Highly porous and crystalline metal–organic framework MIL-101 has been synthesized and used for the preparation of rhodium supported catalyst. Acetylacetonato(1,5-cyclooctadiene)rhodium(I) has been used as catalyst precursor. The material has been
Autor:
Lorenz Neubert, Eckhard Paetzold, Chrstine Fischer, Matthias Beller, Udo Kragl, Ulrike Schümann, Thomas Sadlowski, Peter Kempers, Ulrich Schörken
Publikováno v:
Chemie Ingenieur Technik. 83:322-330
In einem Eintopf-Verfahren werden aus Olefinen durch Hydroformylierung mit Synthesegas (CO/H2 = 1/1) und nachfolgende saurekatalysierte Umsetzung mit Glycerin langkettige Acetale in Ausbeuten > 95 % hergestellt. Die erhaltenen Gemische von 5- und 6-R
Publikováno v:
Advanced Synthesis & Catalysis. 349:1418-1424
The overcoming of thermodynamic limitations in the synthesis of optically active ketone cyanohydrins by using organic solvent-free systems has been investigated. Therefore, substrates with known unfavorable results within hydroxynitrile lyase-catalyz
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 232:41-44
In this paper, we describe the hydroformylation of terminal and internal olefins to terminal aldehydes using a catalyst system of rhodium and BIPHEPHOS. According to industrial processes, the catalyst concentration lies in a range from 0.01 to 0.001
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 214:241-247
The coupling reaction of p-iodoanisole with phenyl boronic acid occurs in high yield in a water–toluene biphasic system catalyzed by palladium complexes with water-soluble phosphine ligands. Silica supports amphiphilized by different types of deter
Autor:
Guenther Oehme, Eckhard Paetzold, Ute Schmidt, Ingrid Grassert, I. Iovel, Torsten Dwars, Hans Fuhrmann
Publikováno v:
Kinetics and Catalysis. 44:766-777
Micelle-forming amphiphiles can promote catalyzed reactions in aqueous media. An example is the asymmetric hydrogenation of amino acid precursors. In comparison to the most common solvent methanol, the hydrogenation in water leads to a decrease of ac
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 200:95-103
The rhodium-catalyzed hydroformylation of 1-dodecene was investigated with a series of sulfonated water-soluble phosphine ligands at a pressure of 60 bar CO/H2 and a temperature of 120 °C. Seven different groups of water-soluble phosphines were used
Autor:
Lothar Hennig, Natalia N. Sergeeva, A. S. Golubev, Günther Oehme, Klaus Burger, Eckhard Paetzold, Matthias Findeisen
Publikováno v:
Journal of Fluorine Chemistry. 111:41-44
The [α-(alkoxycarbonyl)vinyl]diisobutylaluminium reagents generated by hydroalumination from α, β-acetylenic esters and DIBAL-H were reacted with N-acylimines of hexafluoroacetone and methyl trifluoropyruvate to give trifluoromethyl substituted de
Autor:
M. Richter, Hans Fuhrmann, Günther Oehme, Reinhard Eckelt, Hendrik Kosslick, Eckhard Paetzold, M.-M Pohl
Publikováno v:
Microporous and Mesoporous Materials. :517-522
The coupling reaction of p-iodoanisole and phenylboronic acid occurs with high yields in aqueous medium in the presence of palladium complexes with water-soluble phosphine ligands on different mesoporous inorganic supports. Silica and alumina support