Gregori, Bernhard J. and Schwarzhuber, Felix and Poellath, Simon and Zweck, Josef and Fritsch, Lorena and Schoch, Roland and Bauer, Matthias and Jacobi von Wangelin, Axel (2019) Stereoselective Alkyne Hydrogenation by using a Simple Iron Catalyst. CHEMSUSCHEM, 12 (16). pp. 3864-3870. ISSN 1864-5631, 1864-564X
Full text not available from this repository. (Request a copy)Abstract
The stereoselective hydrogenation of alkynes constitutes one of the key approaches for the construction of stereodefined alkenes. The majority of conventional methods utilize noble and toxic metal catalysts. This study concerns a simple catalyst comprised of the commercial chemicals iron(II) acetylacetonate and diisobutylaluminum hydride, which enables the Z-selective semihydrogenation of alkynes under near ambient conditions (1-3 bar H-2, 30 degrees C, 5 mol % [Fe]). Neither an elaborate catalyst preparation nor addition of ligands is required. Mechanistic studies (kinetic poisoning, X-ray absorption spectroscopy, TEM) strongly indicate the operation of small iron clusters and particle catalysts.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | METAL NANOPARTICLES; SODIUM-BOROHYDRIDE; SEMIHYDROGENATION; ALKENES; REDUCTION; HYDROSILYLATION; alkynes; hydrogenation; iron; nanoparticles; stereoselectivity |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Josef Zweck |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Apr 2020 07:23 |
| Last Modified: | 07 Apr 2020 07:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/26604 |
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