Michael Röper
RWTH Aachen University
104 Papers
764 Citations
Michael Röper is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Catalysis & Hydroformylation. The author has an hindex of 16, co-authored 104 publications.
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Papers
Chelated Bisphosphites with a Calix[4]arene Backbone: New Ligands for Rhodium-Catalyzed Low-Pressure Hydroformylation with Controlled Regioselectivity.
TL;DR: Extremely high regioselectivities were achieved in the rhodium-catalyzed low-pressure hydroformylation of 1-octene to n-nonanal with chelate bisphosphites that contain a p-tert-butylcalix[4]arene backbone.
101
Structure-activity relationship for chelating phosphite ligands used in rhodium-catalyzed hydroformylations
TL;DR: A simplified kinetic model was developed for the rhodium-catalyzed low-pressure hydroformylation using chelating phosphite ligands in this article, which allowed the determination of the relative rate constants for linear and branched aldehyde formation starting with terminal olefins.
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Patent
Method for producing surfactant alcohols and surfactant alcohol ethers, the resulting products and their use
Heiko Maas,Michael Röper,Marc D. Walter,Ralf Schulz,Jürgen Tropsch,Hans-Ulrich Jäger,Peter Schwab,Michael Schulz +7 more
- 21 Dec 1999
TL;DR: In this paper, a C4-olefin mixture is subjected to metathesis, the resulting olefins are dimerised and then derivatised to produce surfactant alcohols, and these are optionally alkoxylated.
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Patent
Preparation for production of formic acid formates
Michael Slany,Martin Schäfer,Jorn Karl,Michael Röper +3 more
- 29 Oct 2002
TL;DR: In this article, a process for preparing acid formates in which methyl formate is reacted with water and a basic compound having a pK a of the conjugate acid of the corresponding dissociation state of ≧3 measured at 25° C. in aqueous solution, the methanol formed is separated off and, optionally, the desired acid content is set by adding formic acid.
30
Patent
Method for the production of aldehydes
Bernhard Geissler,Michael Röper,Edgar Zeller,Rocco Paciello,Jürgen Decker,Hartwig Voss,Norbert Mahr +6 more
- 14 Jan 1999
TL;DR: In this paper, a method for the production of aldehydes or alcohols by hydroformylation of olefins in the presence of a complexing catalyst homogeneously dissolved in a reaction mixture, containing a metal of Group VIIIa of the periodic table of the elements and a phosphorus-free, polydentate nitrogen compound suitable for complex formation as ligand at temperatures ranging from 50 to 100° C.
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