ol9028572_si_003.cif (19.98 kB)

An in-Ketocyclophane

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posted on 05.03.2010, 00:00 by Qian Qin, Joel T. Mague, Robert A. Pascal
Computational studies indicate that some benzophenone-capped cyclophanes should have carbonyl groups pointed directly at their basal benzene rings as a result of conformational restraints imposed by bulky groups in the linking arms of the molecules. Cyclophane 4 was prepared, and its X-ray structure shows it to be the first in-ketocyclophane.