Synthesis and photodimerisation of tetrabenzo[ ab,f,jk,o][18]annulenes

The tetrabenzo[ ab,f,jk,o][18]annulenes 7a,b, generated in a 5-step synthesis, show photodimerisation and -oligomerisation reactions in the solid state and in solution. The state of aggregation determines the reaction route. Whereas the cyclodimer 8a has a simple cyclobutane structure, the dimer 8b...

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Bibliographic Details
Published in:Tetrahedron letters 1999-06, Vol.40 (26), p.4791-4794
Main Authors: Meier, Herbert, Fetten, Michael, Schnorpfeil, Christoph, Yakimansky, Alexander V., Voigt-Martin, Ingrid G.
Format: Article
Language:English
Subjects:
Aggregation
Annulenes
Cyclophanes
Dimerisation
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Summary:The tetrabenzo[ ab,f,jk,o][18]annulenes 7a,b, generated in a 5-step synthesis, show photodimerisation and -oligomerisation reactions in the solid state and in solution. The state of aggregation determines the reaction route. Whereas the cyclodimer 8a has a simple cyclobutane structure, the dimer 8b is a highly symmetrical cyclophane. Graphic
ISSN:0040-4039
1873-3581
DOI:10.1016/S0040-4039(99)00876-X