Search results for "Tetrafluoroborate"
showing 10 items of 266 documents
CCDC 2131009: Experimental Crystal Structure Determination
2022
Related Article: Braulio M. Puerta Lombardi, Ethan R. Pezoulas, Roope A. Suvinen, Alexander Harrison, Zachary S. Dubrawski, Benjamin S. Gelfand, Heikki M. Tuononen, Roland Roesler|2022|Chem.Commun.|58|6482|doi:10.1039/D2CC01476A
CCDC 859646: Experimental Crystal Structure Determination
2013
Related Article: V.Gierz, J.Melomedov, C.Forster, C.Deissler, F.Rominger, D.Kunz, K.Heinze|2012|Chem.-Eur.J.|18|10677|doi:10.1002/chem.201200323
CCDC 1581480: Experimental Crystal Structure Determination
2018
Related Article: Hendrik V. Schröder, Felix Witte, Marius Gaedke, Sebastian Sobottka, Lisa Suntrup, Henrik Hupatz, Arto Valkonen, Beate Paulus, Kari Rissanen, Biprajit Sarkar, Christoph A. Schalley|2018|Org.Biomol.Chem.|16|2741|doi:10.1039/C8OB00415C
CCDC 1004976: Experimental Crystal Structure Determination
2014
Related Article: Alexander N. Chernyshev, Dmitry Morozov, Jarkko Mutanen, Vadim Yu Kukushkin, Gerrit Groenhof, Matti Haukka|2014|J.Mater.Chem.C|2|8285|doi:10.1039/C4TC01165A
CCDC 2194826: Experimental Crystal Structure Determination
2022
Related Article: Johanna M. Alaranta, Khai-Nghi Truong, María Francisca Matus, Sami A. Malola, Kari T. Rissanen, Sailee S. Shroff, Varpu S. Marjomäki, Hannu J. Häkkinen, Tanja M. Lahtinen|2022|Dyes Pigm.|208|110844|doi:10.1016/j.dyepig.2022.110844
CCDC 1452898: Experimental Crystal Structure Determination
2016
Related Article: Anna-Carin C. Carlsson, Krenare Mehmeti, Martin Uhrbom, Alavi Karim, Michele Bedin, Rakesh Puttreddy, Roland Kleinmaier, Alexei A. Neverov, Bijan Nekoueishahraki, Jürgen Gräfenstein, Kari Rissanen, and Máté Erdélyi|2016|J.Am.Chem.Soc.|138|9853|doi:10.1021/jacs.6b03842
Acid-mediated reaction of bis(pyridine)iodonium(I) tetrafluoroborate with aromatic compounds. A selective and general iodination method
1993
Reaction of aromatic compounds with bis(pyridine)iodonium(I) tetrafluoroborate (IPy2BF4) in the presence of HBF4 or CF3SO3H in CH2Cl2 at room temperature furnishes monoiodo derivatives with excellent regioselectivity and yields. Use of either acid gives comparable results with activated aromatics, whereas CF3SO3H is much more effective in the iodination of deactivated aromatics. © 1993 American Chemical Society.
A new electrophilic addition to acetylenes. Synthesis of 1,2-iodofunctionalized olefins
1986
Abstract Acetylenes react with bis(pyridine)iodo(I) tetrafluoroborate ( 1 ) in the presence of a wide variety of nucleophiles (F, Cl, Br, I, SCN, pyridine, OAc, anisole, H) to give 1,2-iodofunctionalized olefins ( 4 ).
Synthesis, characterization and thermal behavior of nine new -type quaternary ammonium tetrafluoroborate or hexafluorophosphate salts prepared by met…
2008
Abstract Nine new quaternary ammonium tetrafluoroborate or hexafluoroborate salts were prepared from analogous bromide or chloride salts using anion exchange reaction in which the corresponding bromide or chloride salt was treated with HBF4 or HPF6 acid in aqueous solutions. The characterizations were performed by 1H NMR and 13C NMR spectroscopy as well as by elemental analysis. The single crystals of three tetrafluoroborate and two hexafluorophosphate salts were obtained by slow evaporation from a methanol/ethyl acetate solution and the crystal structures were determined by X-ray single crystal diffraction. Four of the compounds crystallized in the orthorhombic and one in the monoclinic cr…
Gaining insight in the behaviour of imidazolium-based ionic liquids as additives in reversed-phase liquid chromatography for the analysis of basic co…
2015
In reversed-phase liquid chromatography in the absence of additives, cationic basic compounds give rise to broad and asymmetrical peaks as a result of ionic interactions with residual free silanols on silica-based stationary phases. Ionic liquids (ILs), added to the mobile phase, have been suggested as alternatives to amines to block the activity of silanols. However, the dual character of ILs should be considered: both cation and anion may be adsorbed on the stationary phase, thereby creating a double asymmetrical layer positively or negatively charged, depending on the relative adsorption of both ions. In this work, a study of the performance of six imidazolium-based ILs (the chlorides an…