ChemInform Abstract: gem-Difluorination in Superacid: The Dramatic Role of Halonium Ions

Autor:	Fei Liu, Jean-Claude Jacquesy, Fabien Zunino, Christian Berrier, Christian Bachmann, Marie-Paule Jouannetaud, Sébastien Thibaudeau, Agnès Martin-Mingot
Rok vydání:	2009
Předmět:	chemistry.chemical_compound chemistry Hydride Yield (chemistry) Halogenation Halonium ion General Medicine Superacid Photochemistry Ion
Zdroj:	ChemInform. 40
ISSN:	1522-2667 0931-7597
Popis:	In HF/SbF 5 , in the presence of CCl 4 or NBS, unsaturated or hydroxylated piperidines yield difluoroanalogues in good yields. The ability to perform hydride abstraction on chloroderivatives, and the ability to form bridged bromonium ions from unsaturated substrates seem to completely influence the reaction course. Some aspects of the mechanism were clarified by DFT calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b8b6866a72c203911609113e31341300 https://doi.org/10.1002/chin.200904034 Zobrazit plný text záznamu Plný text