Publications de Fides Benfatti

Cyclization and annulation reactions of nitrogen-substituted cyclopropanes and cyclobutanes

Jérôme Waser, Reto Frei, Fides Benfatti, Florian Patrick Marie Daniel De la Barre De Nanteuil, Filippo De Simone, Eloísa Sofía Serrano Robledo

Cyclization and annulation reactions initiated by ring-opening of small rings, especially cyclopropanes and cyclobutanes are now well-established in synthetic chemistry. Nevertheless, the potential of aminocyclopropanes and cyclobutanes, an important subcl ...

Royal Society of Chemistry2014

Catalytic Enantiospecific [3+2] Annulation of Aminocyclopropanes with Ketones

Jérôme Waser, Fides Benfatti, Florian Patrick Marie Daniel De la Barre De Nanteuil

The first enantiospecific [3+2] annulation of D-A amino-cyclopropanes with ketones is reported herein (see scheme; Phth = phthaloyl). The reaction is catalyzed by 5 mol % of tin(IV) chloride at -78 °C and gives aminotetra-hydrofurans bearing a C5-quaternar ...

2012

Asymmetric Organocatalysis Meets Hypervalent Iodine Chemistry for the alpha-Functionalization of Carbonyl Compounds

Jérôme Waser, Fides Benfatti, Davinia Fernández González

Wiley-VCH Verlag2012

Iron-Catalyzed [3+2] Annulation of Aminocyclopropanes with Aldehydes: Stereoselective Synthesis of Aminotetrahydrofurans

Jérôme Waser, Fides Benfatti, Florian Patrick Marie Daniel De la Barre De Nanteuil

The first method for the [3 + 2] annulation of donor acceptor aminocyclopropanes with aldehydes is reported. The reaction is catalyzed by iron trichlorlde on alumina in yields up to 99% and with excellent cis selectivities (up to >20:1) and represents a st ...

American Chemical Society2012

Formal Homo-Nazarov and Other Cyclization Reactions of Activated Cyclopropanes

Jérôme Waser, Fides Benfatti, Filippo De Simone, Tanguy Jean Daniel Saget

The Nazarov cyclization of divinyl ketones gives access to cyclopentenones. Replacing one of the vinyl groups by a cyclopropane leads to a formal homo-Nazarov process for the synthesis of cyclohexenones. In contrast to the Nazarov reaction, the cyclization ...

2011