Fabien Zunino
University of Poitiers
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Publication
Featured researches published by Fabien Zunino.
Organic Letters | 2010
Fei Liu; Agnès Martin-Mingot; Marie-Paule Jouannetaud; Fabien Zunino; Sébastien Thibaudeau
The synthesis of benzofused sultams and/or fluorinated sulfonamides, starting from N-allylic sulfonamides, was performed in superacid HF/SbF(5), through superelectrophilic activation. A dramatic effect of superacid composition on the selectivity of the reaction was shown and applied to the synthesis of cyclic 4-aminobenzenesulfonamides.
Chemical Communications | 2007
Sébastien Thibaudeau; Agnès Martin-Mingot; Marie-Paule Jouannetaud; Omar Karam; Fabien Zunino
A range of unsaturated amines and sulfonamides were converted to beta-fluoro nitrogen analogues after hydrofluorination in superacid HF-SbF(5), based on the formation of highly reactive electrophilic intermediates.
Journal of Organic Chemistry | 2011
Fei Liu; Agnès Martin-Mingot; Marie-Paule Jouannetaud; Christian Bachmann; Gilles Frapper; Fabien Zunino; Sébastien Thibaudeau
The first direct selective synthesis of novel gem-chlorofluorinated nitrogen-containing building blocks in superacid is reported. The dramatic role of the chlorine atom on the reaction is shown by in situ NMR experiments and allows the involvement of a novel original superelectrophilic activation process in superacid HF/SbF(5) to be postulated.
Tetrahedron | 1998
Christian Berrier; Jean-Claude Jacquesy; Marie-Paule Jouannetaud; Ce´cile Lafitte; Yves Vidal; Fabien Zunino; Jacques Fahy; Alain Duflos
Abstract Reaction of vindoline 1a with NBS, NCS, H 2 O 2 in HF-SbF 5 yields 7β substituted (Br, Cl or OH)-20-fluoro-6,7-dihydrovindolines. These results imply reaction of the electrophile (Br + , Cl + and OH + equivalent) on the β-face of C-6 C-7 double bond to give oniums ions, followed by a 1,3-hydride shift from C-20 to C-6, and fluorination of the resulting ion.
Tetrahedron Letters | 2003
Omar Karam; Fabien Zunino; Vincent Chagnaut; Marie Paule Jouannetaud; Jean Claude Jacquesy
Abstract A four-step synthesis of 6-hydroxymelatonin 5 , major human metabolite of melatonin 1 , is reported starting from melatonin. The synthesis involves in the keys steps a regioselective Friedel–Crafts acylation followed by a Baeyer–Villiger oxidation. The overall yield is 48%.
Journal of the American Chemical Society | 1997
Jacques Fahy; Alain Duflos; Jean-Paul Ribet; Jean-Claude Jacquesy; C. Berrier; § and Marie-Paule Jouannetaud; Fabien Zunino
Archive | 1994
Jean-Claude Jacquesy; Jacques Fahy; C. Berrier; Dennis Bigg; Marie-Paule Jouannetaud; Fabien Zunino; Anna Kruczynski; Robert Kiss
Archive | 1994
Jean-Claude Jacquesy; Jacques Fahy; C. Berrier; Dennis Bigg; Marie-Paule Jouannetaud; Fabien Zunino; Anna Kruczynski; Robert Kiss
Journal of Fluorine Chemistry | 2008
Fabien Zunino; Fei Liu; Christian Berrier; Agnès Martin-Mingot; Sébastien Thibaudeau; Marie-Paule Jouannetaud; Jean-Claude Jacquesy; Christian Bachmann
Archive | 2002
Jean-Bernard Fourtillan; Marianne Fourtillan; Omar Karam; Fabien Zunino; Jean-Claude Jacquesy; Jean-Pierre Tafani