Dr. Uwe Köhn

Dr. Uwe Köhn

Office: Humboldtstr. 10
Room Nr. 103
D-07743 Jena
Phone:+49 3641 948 214
FAX:+49 3641 948 212


Fixation and Activation of Carbon Dioxide starting from chiral diamines

    Chiral Amines

  • Synthesis of chiral lithium carbamates from (S)- 2- (N,N- dialkyl- aminomethyl)- pyrrolidines and (S)- methoxymethylpyrrolidine

    • Chiral Carbamates

  • Cryoscopic and NMR (1H-6Li-HOESY) investigations of the chiral lithium carbamates

  • Theoretical studies of reasonable structures in THF solution using high-level quantum chemical calculations (B3LYP/6-311++G(d,p))

Development of new chiral guanidine and phosphazene bases

  • Catalysts for asymmetric synthesis

  • Applications in heterogeneous catalysis

    

List of Publications

  • Synthesis and characterization of chiral 1,2-diamines from 5-oxo-pyrrolidine-(S)-2-carboxylic acid. U. Köhn, A. Schramm, F. Kloß, H. Görls, E. Arnold, and E. Anders*, Tetrahedron: Asymmetry, 2007, 18/14, 1735 - 1741.

  • A New Class of Chiral Phosphazene Bases: Synthesis and Characterization. U. Köhn, M. Schulz, A. Schramm, W. Günther, H. Görls, S. Schenk and E. Anders*, Eur. J. Org. Chem. 2006, 4128-4134.

  • Carbon Dioxide and related heterocumulenes at zinc and lithium cations: Bioinspired reactions and principles. S. Schenk, J. Notni, U. Köhn, K. Wermann, E. Anders*, Dalton Trans. 2006, 4191-4206.

  • Synthesis of Hindered Chiral Guanidine Bases Starting from (S)-(N,N-Dialkyl-aminomethyl)pyrrolidines and BrCN. U. Köhn, M. Klopfleisch, H. Görls, E. Anders*, Tetrahedron: Asymmetry 2006, 17, 811.

  • Neutral zinc(II) and Molybdenum(0) Complexes with Chiral Guanidine Ligands: Synthesis, Characterisation and Applications. U. Köhn, M. Schulz, H. Görls, E. Anders*, Tetrahedron: Asymmetry, 2005, 16, 2125-2131.

  • Preparation of Chiral Thioureas, Ureas and Guanidines from (S)-2-(N,N-dialkylamino-methyl)pyrrolidines. U. Köhn, W. Günther, H. Görls, E. Anders*, Tetrahedron Asymmetry 2004, 15/9, 1419-1426.

  • Carbon Dioxide Fixation by Lithium Amides: DFT Studies on the Reaction Mechanism of the Formation of Lithium Carbamates. Sten O. Nilsson Lill*, Uwe Köhn, and Ernst Anders*, Eur. J. Org. Chem. 2004, 2868-2880.

  • Synthesis of chiral lithium carbamates from (S)-(N,N-dialkyl-aminomethyl)pyrrolidines and (S)-2-methoxymethylpyrrolidine. Uwe Köhn, Ernst Anders*, Tetrahedron Lett. 2002, 43/45, 9585.