Helical Sense Bias Induced by Point Chirality in Cage Compounds

Abstract

Highly efficient chirality transfer is employed in controlling the topological asymmetry of chiral cages with propeller-like shape and pseudo C3 symmetry (see picture; R=H, Cl). The cages are formed when two tripodal units (a tribenzylamine and a tris(tertiary phosphane)) become linked by three P=N bonds, by means of a tripod–tripod coupling process followed by a remarkable triple expulsion of molecular nitrogen. Supporting information for this article is available on the WWW under http://www.angewandte.com or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.