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Configurational and conformational isomeric antiaromatic [28]tetraoxaporphyrinoids(4.2.4.2) and aromatic [26]tetraoxaporphyrin(4.2.4.2) dications. A new type of molecular dynamics in macrocyclic systems

Märkl, Gottfried and Stiegler, J. and Kreitmeier, Peter and Burgemeister, Thomas and Kastner, F. and Dove, Stefan (1997) Configurational and conformational isomeric antiaromatic [28]tetraoxaporphyrinoids(4.2.4.2) and aromatic [26]tetraoxaporphyrin(4.2.4.2) dications. A new type of molecular dynamics in macrocyclic systems. Helvetica Chimica Acta 80 (1), pp. 14-42.

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Other URL: http://www3.interscience.wiley.com/journal/109739556/abstract


Abstract

The [28]tetraoxaporphyrinoids(4.2.4.2) I are synthesized by cyclizing Wittig reaction. An alternative path is the McMurry condensation. Four different configurational isomers of I were isolated and characterized by 1H NMR. The inner and outer protons of the (E,E)-dienediyl bridges in (Z,EE,Z,EE)-I exchange by rotation around the adjacent single bonds. In (Z,EE,E,EE)-I, the (E)-ethenediyl ...

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Item Type:Article
Date:1997
Institutions:Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Oliver Reiser
Chemistry and Pharmacy > Institute of Pharmacy > Pharmaceutical/Medicinal Chemistry II (Prof. Buschauer)
Identification Number:
ValueType
1997:151134Other
Subjects:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Prof. Dr. Stefan Dove
Deposited On:20 Jan 2009 16:49
Last Modified:05 Aug 2009 13:50
Item ID:5451
Owner Only: item control page
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