Closed Pentaaza[9]helicene and Hexathia[9]/[5]helicene: Oxidative Fusion Reactions of ortho‐Phenylene‐Bridged Cyclic Hexapyrroles and Hexathiophenes

Oxidative fusion reactions of ortho‐phenylene‐bridged cyclic hexapyrroles and hexathiophenes furnished novel closed helicenes in a selective manner. X‐Ray diffraction analysis unambiguously revealed the structures to be a closed pentaaza[9]helicene, the longest azahelicene reported so far, and an un...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2017-11, Vol.56 (46), p.14688-14693
Main Authors: Chen, Fengkun, Tanaka, Takayuki, Hong, Yong Seok, Mori, Tadashi, Kim, Dongho, Osuka, Atsuhiro
Format: Article
Language:English
Subjects:
Aromatic compounds
chiral resolution
Circular dichroism
Dichroism
Enantiomers
Fluorescence
helicenes
High-performance liquid chromatography
Liquid chromatography
oxidation
structure determination
X-ray diffraction
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