The
synthesis of the enantiomerically pure, D
3-symmetric covalent hydrocarbon cages (+)-(M,M)-4 and (−)-(P,P)-4 bearing two C
3-symmetrically functionalized tribenzobenzotriquinacene
(TBTQ) vertices is reported. The enantiomerically pure TBTQ building
blocks (+)-(M)-5 and (−)-(P)-5 were prepared via the diastereomeric TBTQ
triamides obtained by use of both Boc-d- and Boc-l-phenylglycine as chiral auxiliaries.
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