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Frontispiece: Diverse Chiral Scaffolds from Diethynylspiranes: All‐Carbon Double Helices and Flexible Shape‐Persistent Macrocycles
Author(s) -
CastroFernández Silvia,
Yang Ren,
García A. Patricio,
Garzón Ignacio L.,
Xu Hai,
Petrovic Ana G.,
AlonsoGómez J. Lorenzo
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201784963
Subject(s) - molecule , helix (gastropod) , asymmetric carbon , stereochemistry , crystallography , chemistry , materials science , optically active , organic chemistry , biology , ecology , snail
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 ( P 2 )‐ 1 molecule (depicted in dark gray) shows a double helix formed by all‐carbon atoms, while the ( P 4 )‐ 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.