Self-assembly of dendritic crowns into chiral supramolecular spheres

The synthesis and structural and retrostructural analysis of a library of dendronized cyclotriveratrylene containing seven nonchiral and seven chiral selfassembling dendrons is described. The analysis has shown a new mechanism for the assembly of chiral supramolecular spheres that has involved an intramolecular structure containing short fragment of helical pyramidal columns.