Search Results - "Brödner, Kerstin"

Enantioselective Modular Synthesis of Cyclohexenones: Total Syntheses of (+)-Crypto- and (+)-Infectocaryone by Franck, Géraldine, Brödner, Kerstin, Helmchen, Günter

“…A modular synthesis of cyclohexenones is described and applied to the first enantioselective total syntheses of (+)-crypto- and (+)-infectocaryone. Key steps…”
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A Configurational Switch Based on Iridium-Catalyzed Allylic Cyclization: Application in Asymmetric Total Syntheses of Prosopis, Dendrobate, and Spruce Alkaloids by Gnamm, Christian, Brödner, Kerstin, Krauter, Caroline M., Helmchen, Günter

“…A method for the stereoselective synthesis of 2,6‐disubstituted piperidines has been developed that is based on the use of an intramolecular iridium‐catalyzed…”
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[2.2.2]Paracyclophane-TrienesAttractive Monomers for ROMP by Mäker, Dominic, Maier, Christopher, Brödner, Kerstin, Bunz, Uwe H. F

“…Three derivatives of 4,7-substituted [2.2.2]paracyclophane-trienes were synthesized and used in ring-opening metathesis polymerization (ROMP), resulting in…”
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Stereoselective Synthesis of 2,6-Disubstituted Piperidines Using the Iridium-Catalyzed Allylic Cyclization as Configurational Switch: Asymmetric Total Synthesis of (+)-241 D and Related Piperidine Alkaloids by Gnamm, Christian, Krauter, Caroline M., Brödner, Kerstin, Helmchen, Günter

“…Pressing the configurational switch: Use of enantiomeric Ir catalysts allows the vinylpiperidine building blocks 2 a and 2 b to be synthesized with high…”
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Water-Soluble Cruciforms and Distyrylbenzenes: Synthesis, Characterization, and pH-Dependent Amine-Sensing Properties by Freudenberg, Jan, Kumpf, Jan, Schäfer, Vera, Sauter, Eric, Wörner, Svenja J, Brödner, Kerstin, Dreuw, Andreas, Bunz, Uwe H. F

“…Three water-soluble fluorescent aldehyde-substituted di­styrylbenzene derivatives were prepared using Heck or Horner methodologies. Water solubility was…”
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Water-Soluble Distyrylbenzenes: One Core with Two Sensory Responses-Turn-On and Ratiometric by Tolosa, Juan, Bryant, Jonathan J., Solntsev, Kyril M., Brödner, Kerstin, Tolbert, Laren M., Bunz, Uwe H. F.

“…The synthesis of four water‐soluble distyrylbenzenes (compounds 1–4) is reported. Their acidochromicity in aqueous media was investigated. Blue shifts and…”
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Ir-Catalysed Asymmetric Allylic Substitutions with Cyclometalated (Phosphoramidite)Ir Complexes-Resting States, Catalytically Active (π-Allyl)Ir Complexes and Computational Exploration by Raskatov, Jevgenij A., Spiess, Stephanie, Gnamm, Christian, Brödner, Kerstin, Rominger, Frank, Helmchen, Günter

“…Mechanistic aspects of allylic substitutions with iridium catalysts derived from phosphoramidites by cyclometalation were investigated. The determination of…”
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Azaacene Diradicals Based on Non‐Kekulé Meta‐Quinodimethane with Large Two‐Photon Cross‐Sections in the Infrared Spectral Region by Fuchs, Kathleen, Oberhof, Nils, Sauter, Gabriel, Pollien, Audrey, Brödner, Kerstin, Rominger, Frank, Freudenberg, Jan, Dreuw, Andreas, Tegeder, Petra, Bunz, Uwe H. F.

“…Non‐Kekulé quinoidal azaacences m‐A (1 a,b) were synthesized and compared to their para‐ and ortho‐quinodimethane analogues. m‐A display high diradical…”
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Substituted Cyclopentannulated Tetraazapentacenes by Maier, Steffen, Heckershoff, Robin, Hippchen, Nikolai, Brödner, Kerstin, Rominger, Frank, Freudenberg, Jan, Hashmi, A. Stephen K., Bunz, Uwe H. F.

“…Brominated pentannulated dihydrotetraazapentacenes were prepared by gold‐ or palladium‐catalyzed 5‐endo‐dig cyclization of TIPS‐ethynylated…”
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Cyclopentannulated Dihydrotetraazapentacenes by Heckershoff, Robin, Maier, Steffen, Wurm, Thomas, Biegger, Philipp, Brödner, Kerstin, Krämer, Petra, Hoffmann, Marvin T., Eberle, Lukas, Stein, Jana, Rominger, Frank, Rudolph, Matthias, Freudenberg, Jan, Dreuw, Andreas, Hashmi, A. Stephen K., Bunz, Uwe H. F.

“…The transition‐metal‐catalyzed cyclization of bissilylethynylated N,N’‐dihydrotetraazapentacene (TIPS‐TAP‐H2) into bissilylated cyclopenta[fg,qr]pentacenes is…”
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Azaacene Diradicals Based on Non‐Kekulé Meta‐Quinodimethane with Large Two‐Photon Cross‐Sections in the Infrared Spectral Region by Fuchs, Kathleen, Oberhof, Nils, Sauter, Gabriel, Pollien, Audrey, Brödner, Kerstin, Rominger, Frank, Freudenberg, Jan, Dreuw, Andreas, Tegeder, Petra, Bunz, Uwe H. F.

“…Non‐Kekulé quinoidal azaacences m‐A (1 a,b) were synthesized and compared to their para‐ and ortho‐quinodimethane analogues. m‐A display high diradical…”
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Ir-Catalyzed Asymmetric Allylic Substitutions with (Phosphoramidite)Ir Complexes-Resting States, Synthesis, and Characterization of Catalytically Active (π-Allyl)Ir Complexes by Spiess, Stephanie, Raskatov, Jevgenij A., Gnamm, Christian, Brödner, Kerstin, Helmchen, Günter

“…(π‐Allyl)Ir complexes: A new and very simple one‐pot synthesis of (π‐allyl)Ir complexes derived from phosphoramidites L is presented (see scheme). Ready…”
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Pyridine-Substituted BODIPY as Fluorescent Probe for Hg2 by Wagner, Sally, Brödner, Kerstin, Coombs, Benjamin A., Bunz, Uwe H. F.

“…Dialkynylated BODIPYs bearing pyridine or dibutylaniline substituents have been synthesized, and their photophyisical properties in the presence of different…”
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Poly(para-phenylene vinylene) and Polynorbornadiene Containing Rod-Coil Block Copoylmers via Combination of Acyclic Diene Metathesis and Ring-Opening Metathesis Polymerization by Porz, Michael, Mäker, Dominic, Brödner, Kerstin, Bunz, Uwe H. F.

“…Poly(para‐phenylene vinylene) (PPV) and its derivatives are important semiconducting polymers for organic electronics. Herein, an alkene metathesis approach to…”
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Pyridine‐Substituted BODIPY as Fluorescent Probe for Hg 2 by Wagner, Sally, Brödner, Kerstin, Coombs, Benjamin A., Bunz, Uwe H. F.

“…Dialkynylated BODIPYs bearing pyridine or dibutylaniline substituents have been synthesized, and their photophyisical properties in the presence of different…”
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Stereoselective Synthesis of a cis-1,2-Dialkylcyclopentane Building Block and Its Application in Isoprostane Synthesis (5-ent-F2c-IsoP) by Elsner, Petteri, Jetter, Peter, Brödner, Kerstin, Helmchen, Günter

“…The all‐cis substituted cyclopentane 3a, an analogue of the Corey lactone, has been prepared from a readily available nortricyclanone derivative by a five‐step…”
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Syntheses of New Chiral Phosphane Ligands by Diastereoselective Conjugate Addition of Phosphides to Enantiomerically Pure Acceptor-Substituted Olefins from the Chiral Pool by Wiese, Burkhard, Knühl, Guido, Flubacher, Dietmar, Prieß, Jan W., Ulriksen (nee Laursen), Bolette, Brödner, Kerstin, Helmchen, Günter

“…A variety of new chiral phosphanes were prepared by highly diastereoselective additions of phosphanes to α,β‐unsaturated carbonyl compounds and related…”
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