- Concave Macroheterocycles
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Macrocyclic compounds of the general type 2 having a spherical shape and a molecular cavity have been synthesized.A "fold and paste"-type cyclization step generates the macroheterocycles 4,10,11,14, and 21.Since this approach is difficult to apply for O-substituted derivatives, the "spheriphane" 24 was synthesized by intermolecular cyclization.The X-ray structure analysis of 11 shows intermolecular interactions ("dimer formation") in the crystal. Key Words: Concave molecules/ Cyclophanes/ High-dilution principle/ Macrocycles/ Spheriphanes
- Mekelburger, Hans-Bernhard,Gross, Jens,Schmitz, Juergen,Nieger, Martin,Voegtle, Fritz
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p. 1713 - 1722
(2007/10/02)
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