The name “superphane” has already been used—it would have been appropriate for the title compound! The first triple-decker phane containing six bridges was synthesized (in a single cyclization step) starting from the three layers. Two isomeric triple-decker phanes were isolated. One of these is helically chiral; it could be separated chromatographically to give the stable enantiomers—1 and its mirror image.
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Sendhoff et al. (1987) studied this question.
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