TY  - JOUR
A1  - Schneider, Leon N.
A1  - Tanzer Krauel, Eva-Maria
A1  - Deutsch, Carl
A1  - Urbahns, Klaus
A1  - Bischof, Tobias
A1  - Maibom, Kristina A. M.
A1  - Landmann, Johannes
A1  - Keppner, Fabian
A1  - Kerpen, Christoph
A1  - Hailmann, Michael
A1  - Zapf, Ludwig
A1  - Knuplez, Tanja
A1  - Bertermann, Rüdiger
A1  - Ignat'ev, Nikolai V.
A1  - Finze, Maik
T1  - Stable and Storable N(CF\(_{3}\))\(_{2}\) Transfer Reagents
JF  - Chemistry—A European Journal
N2  - Fluorinated groups are essential for drug design, agrochemicals, and materials science. The bis(trifluoromethyl)amino group is an example of a stable group that has a high potential. While the number of molecules containing perfluoroalkyl, perfluoroalkoxy, and other fluorinated groups is steadily increasing, examples with the N(CF\(_{3}\))\(_{2}\) group are rare. One reason is that transfer reagents are scarce and metal-based storable reagents are unknown. Herein, a set of Cu\(^{I}\) and Ag\(^{I}\) bis(trifluoromethyl)amido complexes stabilized by N- and P-donor ligands with unprecedented stability are presented. The complexes are stable solids that can even be manipulated in air for a short time. They are bis(trifluoromethyl)amination reagents as shown by nucleophilic substitution and Sandmeyer reactions. In addition to a series of benzylbis(trifluoromethyl)amines, 2-bis(trifluoromethyl)amino acetate was obtained, which, upon hydrolysis, gives the fluorinated amino acid N,N-bis(trifluoromethyl)glycine.
KW  - silver
KW  - amination
KW  - copper
KW  - fluorinated ligands
KW  - N ligands
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-256890
VL  - 27
IS  - 42
ER  - 
TY  - JOUR
A1  - Bischoff, Lisa A.
A1  - Riefer, Jarno
A1  - Wirthensohn, Raphael
A1  - Bischof, Tobias
A1  - Bertermann, Rüdiger
A1  - Ignat'ev, Nikolai V.
A1  - Finze, Maik
T1  - Pentafluoroethylaluminates: A Combined Synthetic, Spectroscopic, and Structural Study
JF  - Chemistry – A European Journal
N2  - Salts of the tetrakis(pentafluoroethyl)aluminate anion [Al(C\(_{2}\)F\(_{5}\))\(_{2}\)]\(^{-}\) were obtained from AlCl\(_{3}\) and LiC\(_{2}\)F\(_{5}\). They were isolated with different counter‐cations and characterized by NMR and vibrational spectroscopy and mass spectrometry. Degradation of the [Al(C\(_{2}\)F\(_{5}\))\(_{4}\)]\(^{-}\) ion was found to proceed via 1,2‐fluorine shifts and stepwise loss of CF(CF\(_{3}\)) under formation of [(C\(_{2}\)F\(_{5}\))\(_{4-n}\)AlF\(_{n}\)]− (n=1–4) as assessed by NMR spectroscopy and mass spectrometry and supported by results of DFT calculations. In addition, the [(C\(_{2}\)F\(_{5}\))AlF\(_{3}\)]\(^{-}\) ion was structurally characterized.
KW  - aluminum
KW  - fluorine
KW  - perfluoroalkyl
KW  - weakly coordinating anions
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-214666
VL  - 26
IS  - 60
SP  - 13615
EP  - 13620
ER  -