Items where Author is "Wennemers, Helma"

2013

Bächle, Florian and Duschmalé, Jörg and Ebner, Christian and Pfaltz, Andreas and Wennemers, Helma. (2013) Organocatalytic Asymmetric Conjugate Addition of Aldehydes to Nitroolefins : Identification of Catalytic Intermediates and the Stereoselectivity-Determining Step by ESI-MS. Angewandte Chemie International Edition, 52 (48). pp. 12619-12623.

2012

Blaser, Hans-Ulrich and Pfaltz, Andreas and Wennemers, Helma. (2012) Chiral Compounds. In: Ullmann's Encyclopedia of Industrial Chemistry. Weinheim, p. 26.

2010

Wiesner, Markus and Upert, Gregory and Angelici, Gaetano and Wennemers, Helma. (2010) Enamine Catalysis with Low Catalyst Loadings – High Efficiency via Kinetic Studies. Journal of the American Chemical Society, Vol. 132, H. 1. pp. 6-7.

Krattiger, Philipp and Nassif, N. and Völkel, A. and Mastai, Y. and Wennemers, Helma and Cölfen, Helmut. (2010) Investigation of active crystal morphogenesis peptide sequences from peptide libraries by crystallization on peptide functionalized beads. Colloids and surfaces. A, Physicochemical and engineering aspects, Vol. 354, H. 1-3. pp. 218-225.

Upert, Gregory and Merten, Christoph and Wennemers, Helma. (2010) Nanoliter Plates - Versatile Tools for the Screening of Split-and-Mix Libraries On-bead and Off-bead. Chemical Communications, 46 (13). pp. 2209-2211.

Wiesner, Markus and Wennemers, Helma. (2010) Peptide Catalyzed Conjugate Addition Reactions of Aldehydes to Nitroolefins. Synthesis, 2010, H. 10. pp. 1568-1571.

Kuemin, Michael and Engel, Jürgen and Wennemers, Helma. (2010) Temperature Induced Transition between Polyproline I and II Helices – Quantitative Fitting of Hysteresis Effects. Journal of peptide science, Vol. 16, H. 10. pp. 596-600.

Kuemin, Michael and Nagel, Yvonne and Schweizer, Sabine and Monnard, Fabien and Ochsenfeld, Christian and Wennemers, Helma. (2010) Tuning the cis:trans Conformer Ratio of Xaa-Pro Amide Bonds by Intramolecular Hydrogen Bonds - Effect on the Stability of the PPII Helix". Angewandte Chemie. International edition in English, Vol. 49 , S. 6324 –6327.

2009

Erdmann, Roman and Kümin, Michael and Wennemers, Helma. (2009) (4R)- and (4S)-Azidoprolines : conformation directing amino acids and sites for functionalization. Chimia, 63 (4). pp. 197-200.

Kuemin, Michael and Schweizer, Sabine and Ochsenfeld, Christian and Wennemers, Helma. (2009) Effects of terminal functional groups on the stability of the polyproline II structure : a combined experimental and theoretical study. Journal of the American Chemical Society, Vol. 131, H. 42 , S. 15474–15482.

Belser, Kirsten and Slenters, Tünde Vig and Pfumbidzai, Conelious and Upert, Gregory and Mirolo, Laurent and Fromm, Katharina M. and Wennemers, Helma. (2009) Silver Nanoparticle Formation in Different Sizes Induced by Peptides Identified within Split-and-Mix Libraries. Angewandte Chemie. International edition in English, Vol. 48, H. 20. pp. 3661-3664.

Erdmann, Roman S. and Wennemers, Helma. (2009) Synthesis of Fmoc-Pro-Hyp(TBDPS)-Gly-OH and its Application as a Versatile Building Block for the Preparation of Collagen Model Peptides. Synthesis, 2009, H. 1. pp. 143-147.

Wiesner, Markus and Neuburger, Markus and Wennemers, Helma. (2009) Tripeptides of the type H-D-Pro-Pro-Xaa-NH2 as catalysts for asymmetric 1,4-addition reactions : structural requirements for high catalytic efficiency. Chemistry, a European journal, Vol. 15, H. 39. pp. 10103-10109.

2008

Gong, Xiao Yang and Dobrunz, Dorninik and Kumin, Michael and Wiesner, Markus and Revell, Jefferson D. and Wennemers, Helma and Hauser, Peter C.. (2008) Separating stereoisomers of di-, tri-, and tetrapeptides using capillary electrophoresis with contactless conductivity detection. Journal of Separation Science, 31 (3). pp. 565-573.