基本信息
浏览量:74
职业迁徙
个人简介
Scientific Aims:
Investigation of the separability of interconvertible stereoisomers at suitable temperatures.
Determination and discussion of the steric structures; relative and absolute configurations.
Measurement of the rates of thermal intramolecular processes, calculation of their activation parameters, their comparison, and their mechanistic discussion.
Experimental Methods:
Synthesis of organic compounds forming interconvertible stereoisomers.
Preparative separation of the isomers by crystallization or by enantioselective liquid chromatography using chiroptical detection.
Stereoanalysis by means of polarimetry, circular dichroism, enantioselective 1H-NMR spectroscopy and liquid chromatography.
Kinetic measurement of isomerizations by polarimetric or 1H-NMR methods.
Selected Publications:
M. Kuttenberger, M. Frieser, M. Hofweber, A. Mannschreck, Tetrahedron Asymm. 9, 3629 - 3645 (1998): Axially Chiral Thioamides of Acrylic Acid: Correlated and Uncorrelated Rotations. (DOI: 10.1016/S0957-4166(98)00373-5)
A. Mannschreck, K. Lorenz, M. Schinabeck in: J. Crano, R. Guglielmetti (editors), Organic Photochromic and Thermochromic Compounds, Plenum Press, Vol. 2, New York 1999, S. 261 - 295: The Enantiomers of 2-Donor-Substituted Benzopyrans and Benzo-1,4-oxazines and their Thermal Racemization.
F. Brandl, N. Pustet, A. Mannschreck, GIT Labor-Fachz. 43, 19 - 22 (1999); Chem. Abstr. 130, 176900 (1999): Polarimetric Detection During Liquid Chromatography. Sensitivity and Computer Support.
F. Brandl, N. Pustet, A. Mannschreck, Internat. Lab. 29 (2), 10 C - 15 C (1999): Applications of a Novel Type of Detector for Liquid Chromatography of Chiral Compounds. (View PDF-File by www.jasco.de)
R. Kiesswetter, T. Burgemeister, A. Mannschreck, Enantiomer 4, 289 - 296 (1999): Chiral 2H- Pyrans, 8. 1',3',3'-Trimethyl-6,8-dinitrospiro[2H-1-benzopyran-2,2'-indoline]: Fast Thermal Enantiomerization and Slow Thermal Equilibration with a Ring-Opened Isomer. (View Record in Scopus)
R. Kiesswetter, N. Pustet, F. Brandl, A. Mannschreck, Tetrahedron Asymm. 10, 4677 - 4687 (1999): Chiral 2H- Pyrans, 10. 1',3',3'-Trimethyl-6-nitrospiro[2H-1-benzopyran-2,2'-indoline]: Its Thermal Enantiomerization and the Equilibration with its Merocyanine. (DOI: 10.1016/S0957-4166(99)00538-8)
研究兴趣
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#Papers: 276
#Citation: 7585
H-Index: 41
G-Index: 68
Sociability: 6
Diversity: 2
Activity: 0
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