Synthesis and Optical Resolution of a Double Helicate Consisting of <i>ortho</i>‐Linked Hexaphenol Strands Bridged by Spiroborates

Abstract

Double Twist: The first spiroborate-based helicate was synthesized and shown to be stable in the solid state as well as in solution. The double-stranded structure (see picture) was characterized by 1H NMR spectroscopy, ESI MS, and X-ray crystallographic studies. The racemic helicates were resolved by the formation of a diastereomeric, optically active ammonium salt. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z504326_s.pdf 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.