
Tetrahedron Letters p. 4791 - 4794 (1999)
Update date:2022-08-04
Topics:
Meier, Herbert
Fetten, Michael
Schnorpfeil, Christoph
Yakimansky, Alexander V.
Voigt-Martin, Ingrid G.
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.
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