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Plastic Deformation of MgGeO 3 Post-Perovskite at Lower Mantle Pressures
Stereoselective synthesis of trans-fused iridoid lactones and their identification in the parasitoid wasp Alloxysta victrix, Part II: Iridomyrmecins
- Robert Hilgraf, N. Zimmermann, L. Lehmann, A. Tröger, W. Francke
- ChemistryBeilstein journal of organic chemistry
- 8 August 2012
All eight stereoisomers of trans-fused iridomyrmecins were synthesized starting from the enantiomers of limonene, revealing that volatiles released by the endohyperparasitoid wasp Alloxysta victrix contain (4S,4aR,7S,7aR)-iridom Myrmecin as a minor component.
Enantioselective Catalytic Formation of Quaternary Stereogenic Centers
Enantioselective catalytic formation of tertiary stereogenic centers has nowadays reached an impressive level of maturity, as is reflected in the large variety of available methods that afford high…
Acetylenes in Catalysis: Enantioselective Additions to Carbonyl Groups and Imines and Applications Beyond
Acetylenes represent a class of versatile building blocks, which are widely used in organic synthesis. Over the past years, a considerable number of publications have appeared that focus on the…
Enantioselective hydrogenation of alkenes with iridium-PHOX catalysts: a kinetic study of anion effects.
In the asymmetric hydrogenation of unfunctionalized olefins with cationic iridium-PHOX catalysts, catalysts with [Al[OC(CF3)3]4]-, BArF-, and [B(C6F5)4]- as counterions do not lose activity during the reaction and remain active, even after all the substrate has been consumed, so rigorous exclusion of water and oxygen is not necessary.
A novel silver(i)-mediated DNA base pair.
- N. Zimmermann, E. Meggers, P. Schultz
- ChemistryJournal of the American Chemical Society
- 25 October 2002
UV-melting experiments revealed that the dSPy:dSPy self-pair can replace natural base pairs at multiple sites and still form stable DNA duplexes.
Iridium-Catalyzed Enantioselective Hydrogenation of Olefins
Cationic iridium complexes with chiral P,N-ligands and tetrakis[3,5-(trifluoromethyl)phenyl]borate (BArF) as the counterion are efficient homogeneous catalysts for the enantioselective hydrogenation…
Synthesis of versatile chiral N,P ligands derived from pyridine and quinoline.
A second-generation copper(II)-mediated metallo-DNA-base pair.
Enantioselective hydrogenation of olefins with phosphinooxazoline-iridium catalysts.
Cationic iridium complexes with chiral phosphinooxazoline ligands are efficient catalysts for the enantioselective hydrogenation of olefins because they do not require the presence of a polar coordinating group near the C=C bond.