Search Results - "Gessner, Viktoria H"

Structure Formation Principles and Reactivity of Organolithium Compounds by Gessner, Viktoria H., Däschlein, Christian, Strohmann, Carsten

“…Organolithium chemistry! An overview of the structure formation principles and the strong structure–reactivity relationship of lithium organics is given. By…”
Get full text

A Highly Active Ylide‐Functionalized Phosphine for Palladium‐Catalyzed Aminations of Aryl Chlorides by Weber, Philip, Scherpf, Thorsten, Rodstein, Ilja, Lichte, Dominik, Scharf, Lennart T., Gooßen, Lukas J., Gessner, Viktoria H.

“…Ylide‐functionalized phosphine ligands (YPhos) were rationally designed to fit the requirements of Buchwald–Hartwig aminations at room temperature. This ligand…”
Get full text

Palladium Complexes Based on Ylide‐Functionalized Phosphines (YPhos): Broadly Applicable High‐Performance Precatalysts for the Amination of Aryl Halides at Room Temperature by Tappen, Jens, Rodstein, Ilja, McGuire, Katie, Großjohann, Angela, Löffler, Julian, Scherpf, Thorsten, Gessner, Viktoria H.

“…Palladium allyl, cinnamyl, and indenyl complexes with the ylide‐substituted phosphines Cy3P+−C−(R)PCy2 (with R=Me (L1) or Ph (L2)) and Cy3P+−C−(Me)PtBu2 (L3)…”
Get full text

Ylide‐Functionalized Phosphines: Strong Donor Ligands for Homogeneous Catalysis by Scherpf, Thorsten, Schwarz, Christopher, Scharf, Lennart T., Zur, Jana‐Alina, Helbig, Andreas, Gessner, Viktoria H.

“…Phosphines are important ligands in homogenous catalysis and have been crucial for many advances, such as in cross‐coupling, hydrofunctionalization, or…”
Get full text

Towards the rational design of ylide-substituted phosphines for gold()-catalysis: from inactive to ppm-level catalysis by Handelmann, Jens, Babu, Chatla Naga, Steinert, Henning, Schwarz, Christopher, Scherpf, Thorsten, Kroll, Alexander, Gessner, Viktoria H

“…The implementation of gold catalysis into large-scale processes suffers from the fact that most reactions still require high catalyst loadings to achieve…”
Get full text

Au⋅⋅⋅H−C Hydrogen Bonds as Design Principle in Gold(I) Catalysis by Darmandeh, Heidar, Löffler, Julian, Tzouras, Nikolaos V., Dereli, Busra, Scherpf, Thorsten, Feichtner, Kai‐Stephan, Vanden Broeck, Sofie, Van Hecke, Kristof, Saab, Marina, Cazin, Catherine S. J., Cavallo, Luigi, Nolan, Steven P., Gessner, Viktoria H.

“…Secondary ligand–metal interactions are decisive in many catalytic transformations. While arene–gold interactions have repeatedly been reported as critical…”
Get full text

Using Ylide Functionalization to Stabilize Boron Cations by Scherpf, Thorsten, Feichtner, Kai‐Stephan, Gessner, Viktoria H.

“…The metalated ylide YNa [Y=(Ph3PCSO2Tol)−] was employed as X,L‐donor ligand for the preparation of a series of boron cations. Treatment of the bis‐ylide…”
Get full text

Ligand Exchange at Carbon: Synthetic Entry to Elusive Species and Versatile Reagents by Krischer, Felix, Gessner, Viktoria H.

“…How different is carbon compared to other elements in the periodic table? Can carbon compounds be regarded as coordination complexes with carbon as the central…”
Get full text

Total Synthesis and Absolute Configuration of the Guaiane Sesquiterpene Englerin A by Willot, Matthieu, Radtke, Lea, Könning, Daniel, Fröhlich, Roland, Gessner, Viktoria H, Strohmann, Carsten, Christmann, Mathias

“…Catnip craze: Nepetalactone, the psychoactive ingredient of catmint, was selected as starting material for the first enantioselective synthesis of englerin A…”
Get full text

Methandiide as a Non-Innocent Ligand in Carbene Complexes: From the Electronic Structure to Bond Activation Reactions and Cooperative Catalysis by Becker, Julia, Modl, Tanja, Gessner, Viktoria H.

“…The synthesis of a ruthenium carbene complex based on a sulfonyl‐substituted methandiide and its application in bond activation reactions and cooperative…”
Get full text

Reactivity of Stabilized Li/Cl Carbenoids towards Lewis Base Adducts of BH3: BH Bond Activation versus Carbene Dimerization by Molitor, Sebastian, Gessner, Viktoria H.

“…BH bond activation: Depending on the stability of the borane adduct, Li/Cl carbenoids react with BH3⋅LB either under BH bond activation at the carbenic…”
Get full text

Towards the Preparation of Stable Cyclic Amino(ylide)Carbenes by Steinert, Henning, Schwarz, Christopher, Kroll, Alexander, Gessner, Viktoria H

“…Cyclic amino(ylide)carbenes (CAYCs) are the ylide-substituted analogues of -heterocyclic Carbenes (NHCs). Due to the stronger π donation of the ylide compared…”
Get full text

Preparation and Isolation of a Chiral Methandiide and Its Application as Cooperative Ligand in Bond Activation by Feichtner, Kai-Stephan, Englert, Simon, Gessner, Viktoria H.

“…The activation of element–hydrogen bonds by means of metal–ligand cooperation has received increasing attention as alternative to classical activation…”
Get full text

Chiral 2-endo-Substituted 9-Oxabispidines: Novel Ligands for Enantioselective Copper(II)-Catalyzed Henry Reactions by Breuning, Matthias, Hein, David, Steiner, Melanie, Gessner, Viktoria H., Strohmann, Carsten

“…A flexible approach, applicable on a gram scale, to chiral 2‐endo‐substituted 9‐oxabispidines was developed. The key intermediate, a cis‐configured…”
Get full text

From the Alkyllithium Aggregate [{(nBuLi)2⋅PMDTA}2] to Lithiated PMDTA by Strohmann, Carsten, Gessner, Viktoria H.

“…A commonly used deprotonation agent is the combination of n‐butyllithium and N,N,N′,N′′,N′′‐pentamethyldiethylenetriamine (PMDTA). The highly reactive…”
Get full text

Assembly of Macrocycles by Zirconocene-Mediated, Reversible Carbon−Carbon Bond Formation by Gessner, Viktoria H, Tannaci, John F, Miller, Adam D, Tilley, T. Don

“…Macrocyclic compounds have attracted considerable attention in numerous applications, including host−guest chemistry, chemical sensing, catalysis, and…”
Get full text

From Monomeric tBuLi·(R,R)-TMCDA to α-Lithiated (R,R)-TMCDA by Strohmann, Carsten, Gessner, Viktoria H

“…The α‐lithiation of amines by direct deprotonation has to date only been possible in a few systems. The enantiomerically pure amine (R,R)‐TMCDA coordinates to…”
Get full text

Synthesis, Crystal and Electronic Structures of a Thiophosphinoyl‐ and Amino‐Substituted Metallated Ylide by Jörges, Mike, Kroll, Alexander, Kelling, Leif, Gauld, Richard, Mallick, Bert, Huber, Stefan M., Gessner, Viktoria H.

“…α‐Metallated ylides have revealed themselves to be versatile reagents for the introduction of ylide groups. Herein, we report the synthesis of the…”
Get full text

Ylide-Substituted Phosphines: A Platform of Strong Donor Ligands for Gold Catalysis and Palladium-Catalyzed Coupling Reactions by Lapointe, Sébastien, Sarbajna, Abir, Gessner, Viktoria H

“…Conspectus The development of homogeneous catalysts is strongly connected to the design of new, sophisticated ligands, which resolve limitations of a given…”
Get full text

Ylide‐Functionalization via Metalated Ylides: Synthesis and Structural Properties by Schwarz, Christopher, Scherpf, Thorsten, Rodstein, Ilja, Weismann, Julia, Feichtner, Kai‐Stephan, Gessner, Viktoria H.

“…The α‐metallated ylides [Ph3P−C−Z]−M+ (with Z=SO2Tol or CN and M=Na or K) were used as versatile nucleophiles for the facile access to ylide‐substituted…”
Get full text