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  - Drisch, Michael
A1  - Bischoff, Lisa A.
A1  - Sprenger, Jan A. P.
A1  - Hennig, Philipp T.
A1  - Wirthensohn, Raphael
A1  - Landmann, Johannes
A1  - Konieczka, Szymon Z.
A1  - Hailmann, Michael
A1  - Ignat'ev, Nikolai V.
A1  - Finze, Maik
T1  - Innovative Syntheses of Cyano(fluoro)borates: Catalytic Cyanation, Electrochemical and Electrophilic Fluorination
JF  - Chemistry – A European Journal
N2  - Different types of high‐yield, easily scalable syntheses for cyano(fluoro)borates Kt[BF\(_{n}\)(CN)\(_{4-n}\)] (n=0–2) (Kt=cation), which are versatile building blocks for materials applications and chemical synthesis, have been developed. Tetrafluoroborates react with trimethylsilyl cyanide in the presence of metal‐free Brønsted or Lewis acid catalysts under unprecedentedly mild conditions to give tricyanofluoroborates or tetracyanoborates. Analogously, pentafluoroethyltrifluoroborates are converted into pentafluoroethyltricyanoborates. Boron trifluoride etherate, alkali metal salts, and trimethylsilyl cyanide selectively yield dicyanodifluoroborates or tricyanofluoroborates. Fluorination of cyanohydridoborates is the third reaction type that includes direct fluorination with, for example, elemental fluorine, stepwise halogenation/fluorination reactions, and electrochemical fluorination (ECF) according to the Simons process. In addition, fluorination of [BH(CN)\(_{2}\){OC(O)Et}]\(^{-}\) to result in [BF(CN)\(_{2}\){OC(O)Et}]\(^{-}\) is described.
KW  - cyanoborates
KW  - electrochemical fluorination
KW  - fluorination
KW  - fluoroborates
KW  - ionic liquids
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-216027
VL  - 26
IS  - 50
SP  - 11625
EP  - 11633
ER  -