ORGN 138 |
Oxidation of dirhodium(II) caprolactamate: Preparation, characterization, and synthetic applications
| Arthur J. Catino and Michael P. Doyle. Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742 |
| Dirhodium(II) carboxamidates, possessing a Rh24+ core with various N-C-O dinuclear bridging ligands, are capable of catalyzing a wide range of metal carbene reactions and have recently been shown to be viable Lewis acids. To continue to expand the scope of dirhodium catalyzed reactions, we considered the electron releasing ability of the carboxamidates. We have discovered that dirhodium(II) carboxamidates undergo facile 1-electron oxidation to form the bench stable paramagnetic Rh25+ complexes. We now report our initial studies with achiral dirhodium caprolactamate [Rh2(cap)4]. The preparation and characterization of two unique Rh25+ complexes shall be described along with new synthetic applications currently under development. 
|
| |
|
Asymmetric Reactions and Syntheses, Metal-Mediated Reactions, Materials, Molecular Recognition
8:00 PM-10:00 PM, Sunday, August 22, 2004 Pennsylvania Convention Center -- Hall D, Poster
Division of Organic Chemistry
The 228th ACS National Meeting, in Philadelphia, PA, August 22-26, 2004
|