Publications de Jean-Baptiste Gualtierotti

On the Formation and Transformation of alpha-Iminonitriles, the Desymmetrization of Bicyclic Bislactones and Total Synthesis of (-)-Leucomidine B and (-)-Rhazinilam

Two principle topics are covered in this thesis. The first section deals with the development of novel synthetically useful multicomponent reactions. The development of three multicomponent reactions, based on α-iminonitriles, is presented. The first descr ...

EPFL2014

Phosphoric Acid Catalyzed Desymmetrization of Bicyclic Bislactones Bearing an All-Carbon Stereogenic Center: Total Syntheses of (−)-Rhazinilam and (−)-Leucomidine B

Jean-Baptiste Gualtierotti, Qian Wang, Jieping Zhu, Delphine Pasche

In the presence of a catalytic amount of an imidodiphosphoric acid, enantioselective desymmetrization of bicyclic bislactones by reaction with alcohols took place smoothly to afford enantiomerically enriched mono acids having an all-carbon stereogenic cent ...

Wiley-Blackwell2014

Synthesis of Iminonitriles by Oxone/TBAB-Mediated One-Pot Oxidative Three-Component Strecker Reaction

Jean-Baptiste Gualtierotti, Xavier Schumacher, Qian Wang, Jieping Zhu

Oxidative three-component reaction of aldehydes, amines, and TMSCN in a biphasic solvent system (toluene/H2O) containing Oxone, tetra-n-butylammonium bromide (TBAB) and sodium bicarbonate afforded α-iminonitriles in good to excellent yields. This oxidative ...

Georg Thieme Verlag2013

Lack of Enantioselectivity in the SULT1A3-catalyzed Sulfoconjugation of Normetanephrine Enantiomers: An In Vitro and Computational Study

Sandrine Gerber, Jean-Baptiste Gualtierotti

(1R)-Normetanephrine is the natural stereoisomeric substrate for sulfotransferase 1A3 (SULT1A3)-catalyzed sulfonation. Nothing appears known on the enantioselectivity of the reaction despite its potential significance in the metabolism of adrenergic amines ...

Wiley-Blackwell2013

Amidation of Aldehydes and Alcohols through α-Iminonitriles and a Sequential Oxidative Three-Component Strecker Reaction/Thio-Michael Addition/Alumina-Promoted Hydrolysis Process to Access β-Mercaptoamides from Aldehydes, Amines, and Thiols

Jean-Baptiste Gualtierotti, Xavier Schumacher, Qian Wang, Jieping Zhu

Mild and general alumina promoted hydrolysis conditions for converting α-iminonitriles into carboxamides have been developed. In combination with the oxidative three-component Strecker reaction, the one-pot direct amidation of aldehydes and alcohols is rep ...

Wiley-Blackwell2012