'Figure eight' cyclooctapyrroles: Enantiomeric separation and determination of the absolute configuration of a binuclear metal complex

Angewandte Chemie - International Edition

Volumn 38, Issue 24, 1999, Pages 3650-3653

  Werner, Andreas ^a   Michels, Martin ^b   Zander, Lars ^b   Lex, Johann ^b   Vogel, Emanuel ^b  

^a Institut fur Organische Chemie   (Austria)

^b UNIVERSITY OF COLOGNE   (Germany)

Author keywords

Configuration determination coordination chemistry; Cyclooctapyrroles; Enantiomeric resolution

Indexed keywords

COPPER COMPLEX; LIGAND; METAL COMPLEX; PALLADIUM COMPLEX; PYRROLE DERIVATIVE;

ARTICLE; CONFORMATION; ENANTIOMER; MOLECULAR STABILITY; NUCLEAR MAGNETIC RESONANCE; SYNTHESIS;

EID: 0033576716     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19991216)38:24<3650::AID-ANIE3650>3.0.CO;2-F     Document Type: Article

References (42)

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30. 1/2. Programs used: SHELXS-97 for structure determination and SHELXL-97 for refinement (G. M. Sheldrick, Universität Göttingen). Calculations were carried out on the data processing systems of the regional computer center of the Universität Köln. Crystallographic data (excluding structure factors) for the structures reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication nos. CCDC-120832 (1), -120833 (2), -121628 (5), -120834 (6, racemate), -120835 (6, (P,P) enantiomer), -120836 (6, (M,M) enantiomer), and -120837 (7). Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ (fax: (+ 44) 1223-336-033; e-mail: deposit@ccdc.cam.ac.uk).
31. Further examples of metal complexes of 1 and 2: ref. [3b].
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40. II complexes 6 and 7 can be prepared from the corresponding enantiomers of 2 without the occurrence of racemization.
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42. Note added in proof (November 9, 1999): The synthesis of an octaphyrin-(1.0.0.0.1.0.0.0) has just been realized. This cyclooctapyrrole containing two C-H spacers less than 4, possesses a twisted boat rather than a figure eight conformation; J. L. Sessler, D. Seidel, V. Lynch, J. Am. Chem. Soc., in press.