Frontispiece: Diverse Chiral Scaffolds from Diethynylspiranes: All‐Carbon Double Helices and Flexible Shape‐Persistent Macrocycles

Chiral molecules display a unique interaction with light. Here, it is presented the synthesis of two types of chiral structures based on spiro compounds, which show remarkable chiroptical activity. The structure of the (P2)‐1 molecule (depicted in dark gray) shows a double helix formed by all‐carbon atoms, while the (P4)‐2 molecule (depicted in light gray) revealed a flexible configuration that modifies its chiroptical activity, but keeps its overall peculiar structure. For more information see the Communication by H. Xu, A. G. Petrovic, J. L, Alonso‐Gómez et al. on page 11747 ff.