Silvia Elfert

Umpolung by N‐Heterocyclic Carbenes: Generation and Reactivity of the Elusive 2,2‐Diamino Enols (Breslow Intermediates)

Albrecht Berkessel, Silvia Elfert, Veera Reddy Yatham et al. · Angewandte Chemie International Edition · 2012 · 190 citations · Full text

Aldehyde Umpolung by N‐Heterocyclic Carbenes: NMR Characterization of the Breslow Intermediate in its Keto Form, and a Spiro‐Dioxolane as the Resting State of the Catalytic System

Albrecht Berkessel, Silvia Elfert, Kerstin Etzenbach‐Effers et al. · Angewandte Chemie International Edition · 2010 · 148 citations · Full text

Asymmetric Catalysis, Engineering, Nmr Spectroscopy +14

Characterization of the Key Intermediates of Carbene‐Catalyzed Umpolung by NMR Spectroscopy and X‐Ray Diffraction: Breslow Intermediates, Homoenolates, and Azolium Enolates

Albrecht Berkessel, Veera Reddy Yatham, Silvia Elfert et al. · Angewandte Chemie International Edition · 2013 · 147 citations

Key Intermediates, Chemical Engineering, Breslow Intermediates +14

On the Involvement of a Spiroepoxide Intermediate in N‐Heterocyclic Carbene (NHC)‐Catalyzed Benzoin Condensations – An Approach by Oxygenation of Deoxy‐Breslow Intermediates

Albrecht Berkessel, Silvia Elfert · Advanced Synthesis & Catalysis · 2014 · 29 citations

Chemical Engineering, Engineering, Heterocyclic +13