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Cover Picture: Helquats: A Facile, Modular, Scalable Route to Novel Helical Dications (Chem. Eur. J. 5/2009)
Author(s) -
Adriaenssens Louis,
Severa Lukáš,
Šálová Tereza,
Císařová Ivana,
Pohl Radek,
Šaman David,
Rocha Silvia V.,
Finney Nathaniel S.,
Pospíšil Lubomír,
Slavíček Petr,
Teplý Filip
Publication year - 2009
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.200990004
Subject(s) - cycloisomerization , modular design , chemistry , combinatorial chemistry , bridging (networking) , scalability , stereochemistry , computer science , organic chemistry , catalysis , computer network , operating system , database
A missing link has been discovered. In their Communication on p. 1072 ff., F. Teplý et al. describe the three‐step synthesis of helquats, a novel class of small helical dications representing a missing structural link between helicenes and viologens. Bridging these areas, until now separate, is anticipated to open up unknown scientific territories. The parent helquat is a water‐soluble, blue fluorophore and can be prepared by a unique metal‐catalyzed [2+2+2] cycloisomerization in water under aerobic conditions.