TY - JOUR A1 - Kleinpeter, Erich A1 - Koch, Andreas A1 - Fischer, G. A1 - Askolin, C.-P. T1 - 13 C NMR, 15 N NMR and quantum-chemical study of the tautomerism of 2-substituted 5-ME-7-OH-1,2,4-triazolo[1,5- a]pyrimidines Y1 - 1997 ER - TY - JOUR A1 - Kleinpeter, Erich A1 - Starke, Ines A1 - Ströhl, D. A1 - Holdt, Hans-Jürgen T1 - NMR spectroscopic study of the solution structure and complexational behaviour of bis-benzocrown ethers Y1 - 1997 ER - TY - JOUR A1 - Kleinpeter, Erich A1 - Heydenreich, Matthias A1 - Kalder, L. A1 - Koch, Andreas A1 - Henning, Dietrich A1 - Kempter, Gerhard T1 - NMR spectroscopic and theoretical structural analysis of 5,5-disubstituted hydantoins in solution Y1 - 1997 ER - TY - JOUR A1 - Koch, Andreas A1 - Thomas, Steffen A1 - Kleinpeter, Erich T1 - Ab-initio study, semi-empirical calculation and NMR spectroscopy of keto-enol tautomerism of triazolopyrimidines Y1 - 1997 ER - TY - JOUR A1 - Reiche, K. B. A1 - Starke, Ines A1 - Kleinpeter, Erich A1 - Holdt, Hans-Jürgen T1 - Host-guest complexation of imine-type meta-bridged bis(benzo crown ether)s with alkali cations in the gas phase under FAB conditions Y1 - 1998 ER - TY - JOUR A1 - Kleinpeter, Erich A1 - Heydenreich, Matthias A1 - Woller, Jochen A1 - Wolf, Gunter A1 - Koch, Andreas A1 - Kempter, Gerhard A1 - Pihlaja, Kalevi T1 - Configuration and stereodynamics of exo/endoisomeric push-pull alkenes of pentadiene structure Y1 - 1998 ER - TY - JOUR A1 - Heydenreich, Matthias A1 - Koch, Andreas A1 - Ristau, Thomas A1 - Knoll, Susanne A1 - Heinicke, Jochen A1 - Sieler, Joachim A1 - Niemitz, Matthias A1 - Mühlstädt, Manfred A1 - Kleinpeter, Erich T1 - Conformational analysis of sulfur-containing heterocycles ; part I: synthesis and structural determination of diastereomerically pure 4,6-bis(phenoxymethyl)-1,2,5-trithiepanes Y1 - 1998 ER - TY - JOUR A1 - Hilfert, Liane A1 - Sarodnick, Gerhard A1 - Kempter, Gerhard A1 - Kleinpeter, Erich T1 - 1H, 13C and 15 N NMR study and molecular modelling of 2,3- disubstituted quinoxalines with sterically hinderered aromatic and heteroaromatic substituents Y1 - 1998 ER - TY - JOUR A1 - Benassi, Rois A1 - Bregulla, Antje A1 - Friedrich, Alwin A1 - Henning, Dietrich A1 - Heydenreich, Matthias A1 - Mickler, Wulfhard A1 - Kleinpeter, Erich A1 - Kempter, Gerhard A1 - Schilde, Uwe A1 - Taddei, F. T1 - NMR spectroscopic and theoretical structural study of 5-exo-methylene-substituted hydantoins Y1 - 1998 ER - TY - JOUR A1 - Kleinpeter, Erich T1 - Conformational analysis of saturated six-membered oxygen-containing heterocyclic rings Y1 - 1998 ER -