[2.2.2.2](1,2,4,5)cyclophane quinhydrone-a donor‐acceptor cyclophane with an 
extremely short transannular distance

Staab, Heinz A.; Schwendemann, Volker

doi:10.1002/anie.197807561

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[2.2.2.2](1,2,4,5)cyclophane quinhydrone-a donor‐acceptor cyclophane with an extremely short transannular distance

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Staab, Heinz A.
Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society;

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Schwendemann, Volker
Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Staab, H. A., & Schwendemann, V. (1978). [2.2.2.2](1,2,4,5)cyclophane quinhydrone-a donor‐acceptor cyclophane with an extremely short transannular distance. Angewandte Chemie International Edition, 17(10), 756-757. doi:10.1002/anie.197807561.

Cite as: https://hdl.handle.net/21.11116/0000-0003-21DE-E

Abstract

The new intramolecular quinhydrone (1) exhibits an extremely short distance between the donor and the acceptor: the planes of the bridged ring C atoms are only 2.67 Å apart. Surprisingly, the wavelength and line width of the CT band of (1) are almost the same as those of the pseudogeminal [2.2]paracyclophane quinhydrone.